Annotations: 7NYC

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth D]	SCOP2B Superfamily	MAC/CDC-like	8052046	3002081	SCOP2B (2022-06-29)
B [auth D]	SCOP2B Superfamily	LDL receptor-like module	8052139	3000728	SCOP2B (2022-06-29)
B [auth D]	SCOP2B Superfamily	TSP-1 type 1 repeat	8052150	3000814	SCOP2B (2022-06-29)
B [auth D]	SCOP2B Superfamily	EGF/Laminin-like	8052131	3000412	SCOP2B (2022-06-29)
B [auth D]	SCOP2B Superfamily	TSP-1 type 1 repeat	8052149	3000814	SCOP2B (2022-06-29)
C [auth E]	SCOP2B Superfamily	TSP-1 type 1 repeat	8052147	3000814	SCOP2B (2022-06-29)
C [auth E]	SCOP2B Superfamily	EGF/Laminin-like	8052128	3000412	SCOP2B (2022-06-29)
C [auth E]	SCOP2B Superfamily	TSP-1 type 1 repeat	8052148	3000814	SCOP2B (2022-06-29)
C [auth E]	SCOP2B Superfamily	LDL receptor-like module	8052137	3000728	SCOP2B (2022-06-29)
D [auth G]	SCOP2B Superfamily	TSP-1 type 1 repeat	8052127	3000814	SCOP2B (2022-06-29)
D [auth G]	SCOP2B Superfamily	EGF/Laminin-like	8052125	3000412	SCOP2B (2022-06-29)
D [auth G]	SCOP2B Superfamily	LDL receptor-like module	8052141	3000728	SCOP2B (2022-06-29)
F [auth H]	SCOP2B Superfamily	TSP-1 type 1 repeat	8052127	3000814	SCOP2B (2022-06-29)
F [auth H]	SCOP2B Superfamily	EGF/Laminin-like	8052125	3000412	SCOP2B (2022-06-29)
F [auth H]	SCOP2B Superfamily	LDL receptor-like module	8052141	3000728	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	LDL receptor-like module	8052141	3000728	SCOP2B (2022-06-29)
E [auth B]	SCOP2B Superfamily	EGF/Laminin-like	8052123	3000412	SCOP2B (2022-06-29)
E [auth B]	SCOP2B Superfamily	MAC/CDC-like	8052040	3002081	SCOP2B (2022-06-29)
E [auth B]	SCOP2B Superfamily	TSP-1 type 1 repeat	8052121	3000814	SCOP2B (2022-06-29)
E [auth B]	SCOP2B Superfamily	LDL receptor-like module	8052133	3000728	SCOP2B (2022-06-29)
E [auth B]	SCOP2B Superfamily	TSP-1 type 1 repeat	8052120	3000814	SCOP2B (2022-06-29)
E [auth B]	SCOP2B Superfamily	Sushi/CCP/SCR domain	8052111	3000902	SCOP2B (2022-06-29)
E [auth B]	SCOP2B Superfamily	Sushi/CCP/SCR domain	8052110	3000902	SCOP2B (2022-06-29)
E [auth B]	SCOP2B Superfamily	TSP-1 type 1 repeat	8052119	3000814	SCOP2B (2022-06-29)
G [auth A]	SCOP2B Superfamily	TIMP-like	8044187	3000488	SCOP2B (2022-06-29)
H [auth F]	SCOP2B Superfamily	Lipocalins	8041276	3001332	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth C]	PF01823	e7nycC1	A: beta complex topology	X: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	H: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	T: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains	F: PF01823	ECOD (1.6)
A [auth C]	PF18434	e7nycC6	A: few secondary structure elements	X: Kazal-type serine protease inhibitors-like	H: Kazal-type serine protease inhibitors (From Topology)	T: Kazal-type serine protease inhibitors	F: PF18434	ECOD (1.6)
A [auth C]	PF21330	e7nycC8	A: few secondary structure elements	X: Kazal-type serine protease inhibitors-like	H: Kazal-type serine protease inhibitors (From Topology)	T: Kazal-type serine protease inhibitors	F: PF21330	ECOD (1.6)
A [auth C]	F_UNCLASSIFIED	e7nycC9	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: F_UNCLASSIFIED	ECOD (1.6)
A [auth C]	PF21284	e7nycC10	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: PF21284	ECOD (1.6)
A [auth C]	PF00084	e7nycC4	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: Complement control module/SCR domain	F: PF00084	ECOD (1.6)
A [auth C]	PF00057	e7nycC7	A: few secondary structure elements	X: EGF-like	H: LDL receptor-like module (From Topology)	T: LDL receptor-like module	F: PF00057	ECOD (1.6)
A [auth C]	PF00090	e7nycC2	A: few secondary structure elements	X: TSP-1 type 1 repeat (From Topology)	H: TSP-1 type 1 repeat (From Topology)	T: TSP-1 type 1 repeat	F: PF00090	ECOD (1.6)
B [auth D]	PF01823	e7nycD1	A: beta complex topology	X: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	H: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	T: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains	F: PF01823	ECOD (1.6)
B [auth D]	PF21195	e7nycD5	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: PF21195	ECOD (1.6)
B [auth D]	PF00057	e7nycD4	A: few secondary structure elements	X: EGF-like	H: LDL receptor-like module (From Topology)	T: LDL receptor-like module	F: PF00057	ECOD (1.6)
B [auth D]	PF00090	e7nycD3	A: few secondary structure elements	X: TSP-1 type 1 repeat (From Topology)	H: TSP-1 type 1 repeat (From Topology)	T: TSP-1 type 1 repeat	F: PF00090	ECOD (1.6)
C [auth E]	PF01823	e7nycE1	A: beta complex topology	X: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	H: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	T: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains	F: PF01823	ECOD (1.6)
C [auth E]	PF21195	e7nycE5	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: PF21195	ECOD (1.6)
C [auth E]	PF00057	e7nycE4	A: few secondary structure elements	X: EGF-like	H: LDL receptor-like module (From Topology)	T: LDL receptor-like module	F: PF00057	ECOD (1.6)
C [auth E]	F_UNCLASSIFIED	e7nycE3	A: few secondary structure elements	X: TSP-1 type 1 repeat (From Topology)	H: TSP-1 type 1 repeat (From Topology)	T: TSP-1 type 1 repeat	F: F_UNCLASSIFIED	ECOD (1.6)
C [auth E]	PF00090	e7nycE2	A: few secondary structure elements	X: TSP-1 type 1 repeat (From Topology)	H: TSP-1 type 1 repeat (From Topology)	T: TSP-1 type 1 repeat	F: PF00090	ECOD (1.6)
D [auth G]	PF01823	e7nycG1	A: beta complex topology	X: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	H: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	T: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains	F: PF01823	ECOD (1.6)
D [auth G]	F_UNCLASSIFIED	e7nycG4	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: F_UNCLASSIFIED	ECOD (1.6)
D [auth G]	PF00057	e7nycG3	A: few secondary structure elements	X: EGF-like	H: LDL receptor-like module (From Topology)	T: LDL receptor-like module	F: PF00057	ECOD (1.6)
D [auth G]	PF00090	e7nycG2	A: few secondary structure elements	X: TSP-1 type 1 repeat (From Topology)	H: TSP-1 type 1 repeat (From Topology)	T: TSP-1 type 1 repeat	F: PF00090	ECOD (1.6)
F [auth H]	PF01823	e7nycH1	A: beta complex topology	X: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	H: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	T: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains	F: PF01823	ECOD (1.6)
F [auth H]	F_UNCLASSIFIED	e7nycH4	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: F_UNCLASSIFIED	ECOD (1.6)
F [auth H]	PF00057	e7nycH3	A: few secondary structure elements	X: EGF-like	H: LDL receptor-like module (From Topology)	T: LDL receptor-like module	F: PF00057	ECOD (1.6)
F [auth H]	PF00090	e7nycH2	A: few secondary structure elements	X: TSP-1 type 1 repeat (From Topology)	H: TSP-1 type 1 repeat (From Topology)	T: TSP-1 type 1 repeat	F: PF00090	ECOD (1.6)
I	PF01823	e7nycI1	A: beta complex topology	X: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	H: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	T: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains	F: PF01823	ECOD (1.6)
I	PF00057	e7nycI2	A: few secondary structure elements	X: EGF-like	H: LDL receptor-like module (From Topology)	T: LDL receptor-like module	F: PF00057	ECOD (1.6)
E [auth B]	PF01823	e7nycB1	A: beta complex topology	X: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	H: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains (From Topology)	T: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains	F: PF01823	ECOD (1.6)
E [auth B]	PF21195	e7nycB8	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: PF21195	ECOD (1.6)
E [auth B]	PF00084	e7nycB4	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: Complement control module/SCR domain	F: PF00084	ECOD (1.6)
E [auth B]	PF00057	e7nycB7	A: few secondary structure elements	X: EGF-like	H: LDL receptor-like module (From Topology)	T: LDL receptor-like module	F: PF00057	ECOD (1.6)
E [auth B]	F_UNCLASSIFIED	e7nycB6	A: few secondary structure elements	X: TSP-1 type 1 repeat (From Topology)	H: TSP-1 type 1 repeat (From Topology)	T: TSP-1 type 1 repeat	F: F_UNCLASSIFIED	ECOD (1.6)
E [auth B]	PF00090	e7nycB3	A: few secondary structure elements	X: TSP-1 type 1 repeat (From Topology)	H: TSP-1 type 1 repeat (From Topology)	T: TSP-1 type 1 repeat	F: PF00090	ECOD (1.6)
G [auth A]	PF01759	e7nycA2	A: beta barrels	X: OB-fold	H: TIMP-like (From Topology)	T: TIMP-like	F: PF01759	ECOD (1.6)
G [auth A]	PF21309	e7nycA11	A: beta sandwiches	X: jelly-roll	H: Spermadhesin, CUB domain (From Topology)	T: Spermadhesin, CUB domain	F: PF21309	ECOD (1.6)
G [auth A]	PF00207	e7nycA6	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF00207	ECOD (1.6)
G [auth A]	PF00207,PF07703	e7nycA4	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF00207,PF07703	ECOD (1.6)
G [auth A]	PF01835	e7nycA5	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF01835	ECOD (1.6)
G [auth A]	PF07703	e7nycA8	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07703	ECOD (1.6)
G [auth A]	PF17789	e7nycA10	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF17789	ECOD (1.6)
G [auth A]	PF17790	e7nycA9	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF17790	ECOD (1.6)
G [auth A]	PF17791	e7nycA7	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF17791	ECOD (1.6)
G [auth A]	PF07677	e7nycA3	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Common fold of diphtheria toxin/transcription factors/cytochrome f	F: PF07677	ECOD (1.6)
G [auth A]	PF07678	e7nycA1	A: alpha superhelices	X: Repetitive alpha hairpins	H: alpha/alpha toroid (From Topology)	T: alpha/alpha toroid	F: PF07678	ECOD (1.6)
H [auth F]	PF00061	e7nycF1	A: beta barrels	X: Lipocalins/Streptavidin	H: Lipocalins (From Topology)	T: Lipocalins	F: PF00061	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth C]	PF00090	Thrombospondin type 1 domain (TSP_1)	Thrombospondin type 1 domain	-	Domain
A [auth C]	PF01823	MAC/Perforin domain (MACPF)	MAC/Perforin domain	The membrane-attack complex (MAC) of the complement system forms transmembrane channels. These channels disrupt the phospholipid bilayer of target cells, leading to cell lysis and death. A number of proteins participate in the assembly of the MAC. Fr ...	The membrane-attack complex (MAC) of the complement system forms transmembrane channels. These channels disrupt the phospholipid bilayer of target cells, leading to cell lysis and death. A number of proteins participate in the assembly of the MAC. Freshly activated C5b binds to C6 to form a C5b-6 complex, then to C7 forming the C5b-7 complex. The C5b-7 complex binds to C8, which is composed of three chains (alpha, beta, and gamma), thus forming the C5b-8 complex. C5b-8 subsequently binds to C9 and acts as a catalyst in the polymerisation of C9. Active MAC has a subunit composition of C5b-C6-C7-C8-C9{n}. Perforin is a protein found in cytolytic T-cell and killer cells. In the presence of calcium, perforin polymerises into transmembrane tubules and is capable of lysing, non-specifically, a variety of target cells. There are a number of regions of similarity in the sequences of complement components C6, C7, C8-alpha, C8-beta, C9 and perforin. The X-ray crystal structure of a MACPF domain reveals that it shares a common fold with bacterial cholesterol dependent cytolysins (Pfam:PF01289) such as perfringolysin O. Three key pieces of evidence suggests that MACPF domains and CDCs are homologous: Functional similarity (pore formation), conservation of three glycine residues at a hinge in both families and conservation of a complex core fold [1].	Domain
A [auth C]	PF21284	Complement component C7, FIM2 N-terminal (C7_FIM2_N)	Complement component C7, FIM2 N-terminal	Factor I-like modules (FIMs) are present in complement proteins C6, C7, and factor I, and participate in protein-protein interactions that critical to the progress of a complement-mediated immune response. Complement component C7 contains a FIM pair ...	Factor I-like modules (FIMs) are present in complement proteins C6, C7, and factor I, and participate in protein-protein interactions that critical to the progress of a complement-mediated immune response. Complement component C7 contains a FIM pair at the C-terminal, FIM1 ana FIM2, each of them consists of a small N-terminal FOLN subdomain and a larger C-terminal KAZAL domain (Pfam:PF18434) [1]. This entry represents the N-terminal of FIM2; it has a FOLN architecture which is a truncated form of the epidermal growth factor domain (EGF) [1].	Domain
A [auth C]	PF00084	Sushi repeat (SCR repeat) (Sushi)	Sushi repeat (SCR repeat)	-	Domain
A [auth C]	PF21330	Complement component C7, Kazal domain (C7_KAZAL)	Complement component C7, Kazal domain	Factor I-like modules (FIMs) are present in complement proteins C6, C7, and factor I, and participate in protein-protein interactions that critical to the progress of a complement-mediated immune response. Complement component C7 contains a FIM pair ...	Factor I-like modules (FIMs) are present in complement proteins C6, C7, and factor I, and participate in protein-protein interactions that critical to the progress of a complement-mediated immune response. Complement component C7 contains a FIM pair at the C-terminal, FIM1 ana FIM2, each of them consists of a small N-terminal FOLN subdomain and a larger C-terminal KAZAL domain [1]. This entry represents the KAZAL domain of FIM1 [1].	Domain
A [auth C]	PF18434	Kazal-type serine protease inhibitor domain (Kazal_3)	Kazal-type serine protease inhibitor domain	Kazal domain found in factor I-like modules (FIMs) region on the carboxyl-terminal of complement component C7 proteins. Complement component C7 is a subunit of the membrane attack complex (MAC), a fundamental machinery in the mammalian innate immunit ...	Kazal domain found in factor I-like modules (FIMs) region on the carboxyl-terminal of complement component C7 proteins. Complement component C7 is a subunit of the membrane attack complex (MAC), a fundamental machinery in the mammalian innate immunity. KAZAL domains are common in serine protease inhibitors [1].	Domain
A [auth C]	PF00057	Low-density lipoprotein receptor domain class A (Ldl_recept_a)	Low-density lipoprotein receptor domain class A	-	Repeat
B [auth D]	PF00090	Thrombospondin type 1 domain (TSP_1)	Thrombospondin type 1 domain	-	Domain
B [auth D]	PF01823	MAC/Perforin domain (MACPF)	MAC/Perforin domain	The membrane-attack complex (MAC) of the complement system forms transmembrane channels. These channels disrupt the phospholipid bilayer of target cells, leading to cell lysis and death. A number of proteins participate in the assembly of the MAC. Fr ...	The membrane-attack complex (MAC) of the complement system forms transmembrane channels. These channels disrupt the phospholipid bilayer of target cells, leading to cell lysis and death. A number of proteins participate in the assembly of the MAC. Freshly activated C5b binds to C6 to form a C5b-6 complex, then to C7 forming the C5b-7 complex. The C5b-7 complex binds to C8, which is composed of three chains (alpha, beta, and gamma), thus forming the C5b-8 complex. C5b-8 subsequently binds to C9 and acts as a catalyst in the polymerisation of C9. Active MAC has a subunit composition of C5b-C6-C7-C8-C9{n}. Perforin is a protein found in cytolytic T-cell and killer cells. In the presence of calcium, perforin polymerises into transmembrane tubules and is capable of lysing, non-specifically, a variety of target cells. There are a number of regions of similarity in the sequences of complement components C6, C7, C8-alpha, C8-beta, C9 and perforin. The X-ray crystal structure of a MACPF domain reveals that it shares a common fold with bacterial cholesterol dependent cytolysins (Pfam:PF01289) such as perfringolysin O. Three key pieces of evidence suggests that MACPF domains and CDCs are homologous: Functional similarity (pore formation), conservation of three glycine residues at a hinge in both families and conservation of a complex core fold [1].	Domain
B [auth D]	PF21195	Complement components C8A/B/C6, EGF-like domain (C8A_B_C6_EGF-like)	Complement components C8A/B/C6, EGF-like domain	This domain is found in the alpha and beta chains of Complement component C8 (C8A/B), in Complement components C6 (C6) from humans, constituents of the membrane attack complex (MAC) that play a key role in the innate and adaptive immune response by f ...	This domain is found in the alpha and beta chains of Complement component C8 (C8A/B), in Complement components C6 (C6) from humans, constituents of the membrane attack complex (MAC) that play a key role in the innate and adaptive immune response by forming pores in the plasma membrane of target cells. This entry represents the rigid, disulfide-rich epidermal growth factor (EGF) domain, which is included in the regulatory segment of these proteins [1,2]. It is found C-terminal to the membrane attack complex perforin domain Pfam:PF01823 and N-terminal to the thrombospondin type 1 domain Pfam:PF00090.	Domain
B [auth D]	PF00057	Low-density lipoprotein receptor domain class A (Ldl_recept_a)	Low-density lipoprotein receptor domain class A	-	Repeat
C [auth E]	PF00090	Thrombospondin type 1 domain (TSP_1)	Thrombospondin type 1 domain	-	Domain
C [auth E]	PF21195	Complement components C8A/B/C6, EGF-like domain (C8A_B_C6_EGF-like)	Complement components C8A/B/C6, EGF-like domain	This domain is found in the alpha and beta chains of Complement component C8 (C8A/B), in Complement components C6 (C6) from humans, constituents of the membrane attack complex (MAC) that play a key role in the innate and adaptive immune response by f ...	This domain is found in the alpha and beta chains of Complement component C8 (C8A/B), in Complement components C6 (C6) from humans, constituents of the membrane attack complex (MAC) that play a key role in the innate and adaptive immune response by forming pores in the plasma membrane of target cells. This entry represents the rigid, disulfide-rich epidermal growth factor (EGF) domain, which is included in the regulatory segment of these proteins [1,2]. It is found C-terminal to the membrane attack complex perforin domain Pfam:PF01823 and N-terminal to the thrombospondin type 1 domain Pfam:PF00090.	Domain
C [auth E]	PF00057	Low-density lipoprotein receptor domain class A (Ldl_recept_a)	Low-density lipoprotein receptor domain class A	-	Repeat
D [auth G], F [auth H], I	PF00090	Thrombospondin type 1 domain (TSP_1)	Thrombospondin type 1 domain	-	Domain
D [auth G], F [auth H], I	PF00057	Low-density lipoprotein receptor domain class A (Ldl_recept_a)	Low-density lipoprotein receptor domain class A	-	Repeat
E [auth B]	PF00090	Thrombospondin type 1 domain (TSP_1)	Thrombospondin type 1 domain	-	Domain
E [auth B]	PF01823	MAC/Perforin domain (MACPF)	MAC/Perforin domain	The membrane-attack complex (MAC) of the complement system forms transmembrane channels. These channels disrupt the phospholipid bilayer of target cells, leading to cell lysis and death. A number of proteins participate in the assembly of the MAC. Fr ...	The membrane-attack complex (MAC) of the complement system forms transmembrane channels. These channels disrupt the phospholipid bilayer of target cells, leading to cell lysis and death. A number of proteins participate in the assembly of the MAC. Freshly activated C5b binds to C6 to form a C5b-6 complex, then to C7 forming the C5b-7 complex. The C5b-7 complex binds to C8, which is composed of three chains (alpha, beta, and gamma), thus forming the C5b-8 complex. C5b-8 subsequently binds to C9 and acts as a catalyst in the polymerisation of C9. Active MAC has a subunit composition of C5b-C6-C7-C8-C9{n}. Perforin is a protein found in cytolytic T-cell and killer cells. In the presence of calcium, perforin polymerises into transmembrane tubules and is capable of lysing, non-specifically, a variety of target cells. There are a number of regions of similarity in the sequences of complement components C6, C7, C8-alpha, C8-beta, C9 and perforin. The X-ray crystal structure of a MACPF domain reveals that it shares a common fold with bacterial cholesterol dependent cytolysins (Pfam:PF01289) such as perfringolysin O. Three key pieces of evidence suggests that MACPF domains and CDCs are homologous: Functional similarity (pore formation), conservation of three glycine residues at a hinge in both families and conservation of a complex core fold [1].	Domain
E [auth B]	PF21195	Complement components C8A/B/C6, EGF-like domain (C8A_B_C6_EGF-like)	Complement components C8A/B/C6, EGF-like domain	This domain is found in the alpha and beta chains of Complement component C8 (C8A/B), in Complement components C6 (C6) from humans, constituents of the membrane attack complex (MAC) that play a key role in the innate and adaptive immune response by f ...	This domain is found in the alpha and beta chains of Complement component C8 (C8A/B), in Complement components C6 (C6) from humans, constituents of the membrane attack complex (MAC) that play a key role in the innate and adaptive immune response by forming pores in the plasma membrane of target cells. This entry represents the rigid, disulfide-rich epidermal growth factor (EGF) domain, which is included in the regulatory segment of these proteins [1,2]. It is found C-terminal to the membrane attack complex perforin domain Pfam:PF01823 and N-terminal to the thrombospondin type 1 domain Pfam:PF00090.	Domain
E [auth B]	PF00084	Sushi repeat (SCR repeat) (Sushi)	Sushi repeat (SCR repeat)	-	Domain
E [auth B]	PF00057	Low-density lipoprotein receptor domain class A (Ldl_recept_a)	Low-density lipoprotein receptor domain class A	-	Repeat
G [auth A]	PF17790	Macroglobulin domain MG1 (MG1)	Macroglobulin domain MG1	This entry represents the N-terminal macroglobulin domain found in complement proteins C3, C4 and C5.	Domain
G [auth A]	PF17791	Macroglobulin domain MG3 (MG3)	Macroglobulin domain MG3	This entry corresponds to the MG3 domain found in complement components C3, C4 and C5.	Domain
G [auth A]	PF01835	MG2 domain (MG2)	MG2 domain	This is the MG2 (macroglobulin) domain of alpha-2-macroglobulin in eukaryotes [1]. Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. How ...	This is the MG2 (macroglobulin) domain of alpha-2-macroglobulin in eukaryotes [1]. Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and species that colonize higher eukaryotes. This domain is found in eukaryotic and bacterial proteins. In human A2Ms, this domain is termed macroglobulin-like (MG) domain 2 and in Salmonella enterica ser A2Ms, this is domain 4 [2] [3].	Domain
G [auth A]	PF00207	Alpha-2-macroglobulin family (A2M)	Alpha-2-macroglobulin family	-	Family
G [auth A]	PF01759	UNC-6/NTR/C345C module (NTR)	UNC-6/NTR/C345C module	Sequence similarity between netrin UNC-6 and C345C complement protein family members, and hence the existence of the UNC-6 module, was first reported in [1]. Subsequently, many additional members of the family were identified on the basis of sequence ...	Sequence similarity between netrin UNC-6 and C345C complement protein family members, and hence the existence of the UNC-6 module, was first reported in [1]. Subsequently, many additional members of the family were identified on the basis of sequence similarity between the C-terminal domains of netrins, complement proteins C3, C4, C5, secreted frizzled-related proteins, and type I pro-collagen C-proteinase enhancer proteins (PCOLCEs), which are homologous with the N-terminal domains of tissue inhibitors of metalloproteinases (TIMPs). The TIMPs are classified as a separate family in Pfam (Pfam:PF00965) [2]. This expanded domain family has been named as the NTR module [2].	Domain
G [auth A]	PF07678	A-macroglobulin TED domain (TED_complement)	A-macroglobulin TED domain	-	Repeat
G [auth A]	PF07677	A-macroglobulin receptor binding domain (A2M_recep)	A-macroglobulin receptor binding domain	This family includes the receptor binding domain region of the alpha-2-macroglobulin family.	Domain
G [auth A]	PF21309	Complement component 5, CUB domain (C5_CUB)	Complement component 5, CUB domain	Complement component 5 (C5) is a component of the lytic complex consisting of factors C5-C9 which attack bacterial cell membranes. This entry represents the CUB domain [1-5].	Domain
G [auth A]	PF07703	Alpha-2-macroglobulin bait region domain (A2M_BRD)	Alpha-2-macroglobulin bait region domain	Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and spe ...	Alpha-2-macroglobulins (A2Ms) are plasma proteins that trap and inhibit a broad range of proteases and are major components of the eukaryotic innate immune system. However, A2M-like proteins were identified in pathogenically invasive bacteria and species that colonize higher eukaryotes. This domain is found in eukaryotic and bacterial proteins. In human A2Ms, this domain encompasses macroglobulin-like domain MG5 and 6 including bait region. In Salmonella enterica ser A2Ms, this domain encompasses MG7 and MG8 including the bait region [1] [2]. The Bait region is cleaved by proteases, followed by a large conformational change that blocks the target protease within a cage-like complex. This model of protease entrapment is recognised as the Venus flytrap mechanism [1].	Domain
G [auth A]	PF17789	Macroglobulin domain MG4 (MG4)	Macroglobulin domain MG4	This domain is MG4 found in complement C3 and C5 proteins.	Domain
H [auth F]	PF00061	Lipocalin / cytosolic fatty-acid binding protein family (Lipocalin)	Lipocalin / cytosolic fatty-acid binding protein family	Lipocalins are transporters for small hydrophobic molecules, such as lipids, steroid hormones, bilins, and retinoids. The family also encompasses the enzyme prostaglandin D synthase (EC:5.3.99.2). Alignment subsumes both the lipocalin and fatty acid ...	Lipocalins are transporters for small hydrophobic molecules, such as lipids, steroid hormones, bilins, and retinoids. The family also encompasses the enzyme prostaglandin D synthase (EC:5.3.99.2). Alignment subsumes both the lipocalin and fatty acid binding protein signatures from PROSITE. This is supported on structural and functional grounds. The structure is an eight-stranded beta barrel.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C]	Complement component C7	-	regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity humoral immune response complement activation humoral immune response mediated by circulating immunoglobulin leukocyte mediated immunity complement activation, classical pathway immunoglobulin mediated immune response adaptive immune response immune effector process B cell mediated immunity activation of immune response biological process involved in interspecies interaction between organisms cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing complement activation, alternative pathway response to biotic stimulus response to stress innate immune response response to external biotic stimulus response to other organism defense response defense response to symbiont response to external stimulus defense response to other organism	extracellular region cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle extracellular space vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane extracellular region cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle extracellular space vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex pore complex membrane attack complex
B [auth D]	Complement component C8 beta chain	protein-containing complex binding binding	regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity humoral immune response complement activation humoral immune response mediated by circulating immunoglobulin leukocyte mediated immunity complement activation, classical pathway immunoglobulin mediated immune response adaptive immune response immune effector process B cell mediated immunity activation of immune response biological process involved in interspecies interaction between organisms cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing complement activation, alternative pathway response to biotic stimulus response to stress innate immune response response to external biotic stimulus response to other organism defense response defense response to symbiont response to external stimulus defense response to other organism	membrane cellular anatomical entity extracellular region extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle extracellular space vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane cellular anatomical entity extracellular region extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle extracellular space vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex plasma membrane membrane protein complex pore complex membrane attack complex
C [auth E]	Complement component C8 alpha chain	protein binding binding complement binding protein-containing complex binding	regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity humoral immune response complement activation humoral immune response mediated by circulating immunoglobulin leukocyte mediated immunity complement activation, classical pathway immunoglobulin mediated immune response adaptive immune response immune effector process B cell mediated immunity activation of immune response biological process involved in interspecies interaction between organisms cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing complement activation, alternative pathway response to biotic stimulus response to stress innate immune response response to external biotic stimulus response to other organism defense response defense response to symbiont response to external stimulus defense response to other organism	membrane cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex plasma membrane membrane protein complex pore complex membrane attack complex blood microparticle
D [auth G], F [auth H], I	Complement component C9	-	regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity humoral immune response complement activation humoral immune response mediated by circulating immunoglobulin leukocyte mediated immunity complement activation, classical pathway immunoglobulin mediated immune response adaptive immune response immune effector process B cell mediated immunity activation of immune response biological process involved in interspecies interaction between organisms cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing complement activation, alternative pathway response to biotic stimulus response to stress innate immune response response to external biotic stimulus response to other organism defense response defense response to symbiont response to external stimulus defense response to other organism cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis	extracellular region extracellular space cellular anatomical entity blood microparticle extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex extracellular region extracellular space cellular anatomical entity blood microparticle extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex pore complex membrane attack complex other organism cell membrane other organism part
E [auth B]	Complement component C6	-	regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity humoral immune response complement activation humoral immune response mediated by circulating immunoglobulin leukocyte mediated immunity complement activation, classical pathway immunoglobulin mediated immune response adaptive immune response immune effector process B cell mediated immunity activation of immune response biological process involved in interspecies interaction between organisms response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to other organism response to stress innate immune response response to external biotic stimulus developmental process multicellular organism development multicellular organismal process embryo development ending in birth or egg hatching chordate embryonic development anatomical structure development embryo development in utero embryonic development cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing	extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex pore complex membrane attack complex
G [auth A]	Complement C5	protein binding binding signaling receptor binding molecular function activator activity G protein-coupled receptor binding signaling receptor activator activity cytokine receptor binding chemokine activity molecular function regulator activity cytokine activity signaling receptor regulator activity chemokine receptor binding receptor ligand activity enzyme regulator activity protein binding binding signaling receptor binding molecular function activator activity G protein-coupled receptor binding signaling receptor activator activity cytokine receptor binding chemokine activity molecular function regulator activity cytokine activity signaling receptor regulator activity chemokine receptor binding receptor ligand activity enzyme regulator activity molecular function inhibitor activity peptidase regulator activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity	adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity humoral immune response response to stimulus positive regulation of biological process positive regulation of response to stimulus complement activation humoral immune response mediated by circulating immunoglobulin positive regulation of immune response leukocyte mediated immunity regulation of immune system process positive regulation of immune system process complement activation, classical pathway regulation of biological process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity humoral immune response response to stimulus positive regulation of biological process positive regulation of response to stimulus complement activation humoral immune response mediated by circulating immunoglobulin positive regulation of immune response leukocyte mediated immunity regulation of immune system process positive regulation of immune system process complement activation, classical pathway regulation of biological process immune response biological regulation immunoglobulin mediated immune response adaptive immune response immune effector process regulation of response to stimulus immune system process B cell mediated immunity regulation of immune response activation of immune response cellular response to stimulus negative regulation of mononuclear cell migration negative regulation of locomotion regulation of cell motility regulation of cellular process negative regulation of biological process negative regulation of chemotaxis macrophage migration taxis negative regulation of macrophage chemotaxis cell migration regulation of mononuclear cell migration negative regulation of macrophage migration negative regulation of cell migration chemotaxis regulation of leukocyte chemotaxis regulation of leukocyte migration response to external stimulus leukocyte migration negative regulation of leukocyte migration regulation of locomotion response to chemical negative regulation of response to external stimulus negative regulation of cell motility negative regulation of leukocyte chemotaxis regulation of response to external stimulus macrophage chemotaxis regulation of macrophage migration negative regulation of cellular process regulation of cell migration myeloid leukocyte migration cell motility locomotion cell chemotaxis regulation of macrophage chemotaxis negative regulation of response to stimulus regulation of chemotaxis cellular response to chemical stimulus negative regulation of immune system process mononuclear cell migration cellular process leukocyte chemotaxis multicellular organismal process cellular biosynthetic process positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process organic substance metabolic process positive regulation of biosynthetic process regulation of cytokine production organic substance biosynthetic process cytokine production regulation of multicellular organismal process positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of vascular endothelial growth factor production regulation of biosynthetic process cellular metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression vascular endothelial growth factor production biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process positive regulation of vascular endothelial growth factor production regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process positive regulation of cellular biosynthetic process regulation of chemokine production chemokine production positive regulation of chemokine production cell surface receptor signaling pathway signaling signal transduction cell communication biological process involved in interspecies interaction between organisms disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing defense response response to stress inflammatory response G protein-coupled receptor signaling pathway complement activation, alternative pathway response to biotic stimulus innate immune response response to external biotic stimulus response to other organism defense response to symbiont defense response to other organism	extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex pore complex membrane attack complex
H [auth F]	Complement component C8 gamma chain	protein-containing complex binding binding vitamin binding alcohol binding isoprenoid binding retinoid binding lipid binding retinol binding small molecule binding protein binding complement binding	regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity regulation of biological process response to stimulus immune response biological regulation positive regulation of biological process positive regulation of response to stimulus positive regulation of immune response regulation of response to stimulus immune system process regulation of immune response regulation of immune system process positive regulation of immune system process adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains lymphocyte mediated immunity humoral immune response complement activation humoral immune response mediated by circulating immunoglobulin leukocyte mediated immunity complement activation, classical pathway immunoglobulin mediated immune response adaptive immune response immune effector process B cell mediated immunity activation of immune response biological process involved in interspecies interaction between organisms cellular process disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing complement activation, alternative pathway response to biotic stimulus response to stress innate immune response response to external biotic stimulus response to other organism defense response defense response to symbiont response to external stimulus defense response to other organism	extracellular region extracellular space cellular anatomical entity blood microparticle extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex extracellular region extracellular space cellular anatomical entity blood microparticle extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle vesicle extracellular membrane-bounded organelle cell periphery protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex pore complex membrane attack complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C]	IPR000884	Thrombospondin type-1 (TSP1) repeat	Repeat
A [auth C]	IPR020864	Membrane attack complex component/perforin (MACPF) domain	Domain
A [auth C]	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
A [auth C]	IPR040729	Kazal-type serine protease inhibitor domain	Domain
A [auth C]	IPR036383	Thrombospondin type-1 (TSP1) repeat superfamily	Homologous Superfamily
A [auth C]	IPR048827	Complement component C7, FIM2 N-terminal domain	Domain
A [auth C]	IPR001862	Membrane attack complex component/perforin/complement C9	Family
A [auth C]	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site
A [auth C]	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
A [auth C]	IPR020863	Membrane attack complex component/perforin domain, conserved site	Conserved Site
A [auth C]	IPR000436	Sushi/SCR/CCP domain	Domain
A [auth C]	IPR048825	Complement component C7, Kazal domain	Domain
A [auth C]	IPR003884	Factor I / membrane attack complex	Domain
A [auth C]	IPR035976	Sushi/SCR/CCP superfamily	Homologous Superfamily
B [auth D]	IPR000884	Thrombospondin type-1 (TSP1) repeat	Repeat
B [auth D]	IPR020864	Membrane attack complex component/perforin (MACPF) domain	Domain
B [auth D]	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
B [auth D]	IPR036383	Thrombospondin type-1 (TSP1) repeat superfamily	Homologous Superfamily
B [auth D]	IPR001862	Membrane attack complex component/perforin/complement C9	Family
B [auth D]	IPR048831	Complement components C8A/B/C6, EGF-like domain	Domain
B [auth D]	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site
B [auth D]	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
B [auth D]	IPR020863	Membrane attack complex component/perforin domain, conserved site	Conserved Site
C [auth E]	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
C [auth E]	IPR001862	Membrane attack complex component/perforin/complement C9	Family
C [auth E]	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
C [auth E]	IPR020863	Membrane attack complex component/perforin domain, conserved site	Conserved Site
C [auth E]	IPR000884	Thrombospondin type-1 (TSP1) repeat	Repeat
C [auth E]	IPR020864	Membrane attack complex component/perforin (MACPF) domain	Domain
C [auth E]	IPR036383	Thrombospondin type-1 (TSP1) repeat superfamily	Homologous Superfamily
C [auth E]	IPR048831	Complement components C8A/B/C6, EGF-like domain	Domain
C [auth E]	IPR009030	Growth factor receptor cysteine-rich domain superfamily	Homologous Superfamily
C [auth E]	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site
D [auth G], F [auth H], I	IPR000884	Thrombospondin type-1 (TSP1) repeat	Repeat
D [auth G], F [auth H], I	IPR020864	Membrane attack complex component/perforin (MACPF) domain	Domain
D [auth G], F [auth H], I	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
D [auth G], F [auth H], I	IPR036383	Thrombospondin type-1 (TSP1) repeat superfamily	Homologous Superfamily
D [auth G], F [auth H], I	IPR001862	Membrane attack complex component/perforin/complement C9	Family
D [auth G], F [auth H], I	IPR009030	Growth factor receptor cysteine-rich domain superfamily	Homologous Superfamily
D [auth G], F [auth H], I	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site
D [auth G], F [auth H], I	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
D [auth G], F [auth H], I	IPR020863	Membrane attack complex component/perforin domain, conserved site	Conserved Site
E [auth B]	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
E [auth B]	IPR001862	Membrane attack complex component/perforin/complement C9	Family
E [auth B]	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
E [auth B]	IPR020863	Membrane attack complex component/perforin domain, conserved site	Conserved Site
E [auth B]	IPR048828	Complement component C6, KAZAL domain	Domain
E [auth B]	IPR000436	Sushi/SCR/CCP domain	Domain
E [auth B]	IPR002350	Kazal domain	Domain
E [auth B]	IPR003884	Factor I / membrane attack complex	Domain
E [auth B]	IPR035976	Sushi/SCR/CCP superfamily	Homologous Superfamily
E [auth B]	IPR000884	Thrombospondin type-1 (TSP1) repeat	Repeat
E [auth B]	IPR020864	Membrane attack complex component/perforin (MACPF) domain	Domain
E [auth B]	IPR036383	Thrombospondin type-1 (TSP1) repeat superfamily	Homologous Superfamily
E [auth B]	IPR048831	Complement components C8A/B/C6, EGF-like domain	Domain
E [auth B]	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site
G [auth A]	IPR009048	Alpha-macroglobulin, receptor-binding	Domain
G [auth A]	IPR041555	Macroglobulin domain MG3	Domain
G [auth A]	IPR001599	Alpha-2-macroglobulin	Domain
G [auth A]	IPR048843	Complement component 5, CUB domain	Domain
G [auth A]	IPR018081	Anaphylatoxin, complement system	Homologous Superfamily
G [auth A]	IPR018933	Netrin module, non-TIMP type	Domain
G [auth A]	IPR001840	Anaphylatoxin, complement system domain	Domain
G [auth A]	IPR041425	Complement C3/4/5, macroglobulin domain MG1	Domain
G [auth A]	IPR011625	Alpha-2-macroglobulin, bait region domain	Domain
G [auth A]	IPR001134	Netrin domain	Domain
G [auth A]	IPR008993	Tissue inhibitor of metalloproteinases-like, OB-fold	Homologous Superfamily
G [auth A]	IPR011626	Alpha-macroglobulin-like, TED domain	Domain
G [auth A]	IPR000020	Anaphylatoxin/fibulin	Domain
G [auth A]	IPR036595	Alpha-macroglobulin, receptor-binding domain superfamily	Homologous Superfamily
G [auth A]	IPR002890	Macroglobulin domain	Domain
G [auth A]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
G [auth A]	IPR008930	Terpenoid cyclases/protein prenyltransferase alpha-alpha toroid	Homologous Superfamily
G [auth A]	IPR040839	Macroglobulin domain MG4	Domain
H [auth F]	IPR002968	Alpha-1-microglobulin	Family
H [auth F]	IPR012674	Calycin	Homologous Superfamily
H [auth F]	IPR000566	Lipocalin/cytosolic fatty-acid binding domain	Domain
H [auth F]	IPR043245	Complement component C8 gamma chain	Family
H [auth F]	IPR022272	Lipocalin family conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth C]	Pharos: P10643	complement component 7 deficiency Liver Cirrhosis, Experimental pancreatic intraductal papillary-mucinous neoplasm pituitary cancer ulcerative colitis adrenal cortex adenoma breast carcinoma invasive ductal breast carcinoma lung cancer malignant pancreatic neoplasm non-small cell lung carcinoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia psoriasis adrenal cortex carcinoma complement component 7 deficiency Liver Cirrhosis, Experimental pancreatic intraductal papillary-mucinous neoplasm pituitary cancer ulcerative colitis adrenal cortex adenoma breast carcinoma invasive ductal breast carcinoma lung cancer malignant pancreatic neoplasm non-small cell lung carcinoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia psoriasis adrenal cortex carcinoma lung carcinoma MALT lymphoma osteosarcoma pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma Sjogren syndrome atopic eczema diabetes mellitus lung adenocarcinoma malignant colon neoplasm medulloblastoma ovarian cancer
B [auth D]	Pharos: P07358	type II complement component 8 deficiency juvenile idiopathic arthritis primary immunodeficiency disease Neisseriaceae Infections lung carcinoma non-small cell lung carcinoma pancreatic ductal adenocarcinoma attention deficit hyperactivity disorder, inattentive type lung adenocarcinoma meningitis ovarian cancer infectious meningitis lung cancer
C [auth E]	Pharos: P07357	type I complement component 8 deficiency Neisseriaceae Infections primary immunodeficiency disease meningitis pancreatic ductal adenocarcinoma autism spectrum disorder infectious meningitis
D [auth G], F [auth H], I	Pharos: P02748	age-related macular degeneration complement component 9 deficiency meningococcal meningitis dermatomyositis age related macular degeneration 15 opioid abuse primary immunodeficiency disease facial dermatosis Erythema malignant mesothelioma opiate dependence pancreatic ductal adenocarcinoma retinal degeneration exocrine pancreatic carcinoma Finnish type amyloidosis age-related macular degeneration complement component 9 deficiency meningococcal meningitis dermatomyositis age related macular degeneration 15 opioid abuse primary immunodeficiency disease facial dermatosis Erythema malignant mesothelioma opiate dependence pancreatic ductal adenocarcinoma retinal degeneration exocrine pancreatic carcinoma Finnish type amyloidosis wet macular degeneration chronic kidney disease hepatocellular carcinoma macular degeneration psoriasis juvenile dermatomyositis
E [auth B]	Pharos: P13671	complement component 6 deficiency calcinosis heart valve disease lung carcinoma Microcalcification pancreatic intraductal papillary-mucinous neoplasm invasive ductal breast carcinoma malignant ependymoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia ductal breast carcinoma in situ lung adenocarcinoma malignant pancreatic neoplasm pancreatic intraductal papillary-mucinous carcinoma psoriasis
G [auth A]	Pharos: P01031	complement component 5 deficiency rheumatoid arthritis peritonitis primary immunodeficiency disease pancreatic intraductal papillary-mucinous neoplasm psoriasis Secondary Peritonitis acquired paroxysmal nocturnal hemoglobinuria lung cancer malignant pancreatic neoplasm non-small cell lung carcinoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia tuberculosis allergic rhinitis complement component 5 deficiency rheumatoid arthritis peritonitis primary immunodeficiency disease pancreatic intraductal papillary-mucinous neoplasm psoriasis Secondary Peritonitis acquired paroxysmal nocturnal hemoglobinuria lung cancer malignant pancreatic neoplasm non-small cell lung carcinoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia tuberculosis allergic rhinitis atypical hemolytic-uremic syndrome malignant ependymoma medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous carcinoma primitive neuroectodermal tumor seborrheic infantile dermatitis atypical teratoid rhabdoid tumor glioblastoma malignant mesothelioma neuromyelitis optica ovarian cancer
H [auth F]	Pharos: P07360	Liver Cirrhosis, Experimental pancreatic ductal adenocarcinoma

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth C], B [auth D], C [auth E], D [auth G], E [auth B] A [auth C], B [auth D], C [auth E], D [auth G], E [auth B], F [auth H], G [auth A], H [auth F], I	mpstruc	TRANSMEMBRANE PROTEINS: BETA-BARREL	Adventitious Membrane Proteins: Beta-sheet Pore-forming Toxins/Attack Complexes	3C9-sMAC Complement membrane attack complex packaged for clearance