6CXO | pdb_00006cxo

Complement component-9

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: mpstruc

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	MACPF	e6cxoB1	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: MACPF	ECOD (1.6)
B	hEGF_4	e6cxoB4	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: hEGF_4	ECOD (1.6)
B	Ldl_recept_a	e6cxoB3	A: few secondary structure elements	X: EGF-like	H: LDL receptor-like module (From Topology)	T: LDL receptor-like module	F: Ldl_recept_a	ECOD (1.6)
B	TSP_1_1	e6cxoB2	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: TSP_1_1	ECOD (1.6)
A	MACPF	e6cxoA3	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: MACPF	ECOD (1.6)
A	hEGF_4	e6cxoA4	A: few secondary structure elements	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: hEGF_4	ECOD (1.6)
A	Ldl_recept_a	e6cxoA2	A: few secondary structure elements	X: EGF-like	H: LDL receptor-like module (From Topology)	T: LDL receptor-like module	F: Ldl_recept_a	ECOD (1.6)
A	TSP_1_1	e6cxoA1	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: TSP_1_1	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00090	Thrombospondin type 1 domain (TSP_1)	Thrombospondin type 1 domain		Domain
A, B	PF00057	Low-density lipoprotein receptor domain class A (Ldl_recept_a)	Low-density lipoprotein receptor domain class A	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	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 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 complement activation, GZMK pathway defense response to other organism 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 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	cell periphery protein-containing complex cellular anatomical structure plasma membrane protein complex membrane plasma membrane membrane protein complex pore complex membrane attack complex transmembrane transporter complex transporter complex other organism cell membrane other organism part extracellular region cell periphery protein-containing complex cellular anatomical structure plasma membrane protein complex membrane plasma membrane membrane protein complex pore complex membrane attack complex transmembrane transporter complex transporter complex other organism cell membrane other organism part extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR000884	Thrombospondin type-1 (TSP1) repeat	Repeat
A, B	IPR020864	Membrane attack complex component/perforin (MACPF) domain	Domain
A, B	IPR002172	Low-density lipoprotein (LDL) receptor class A repeat	Repeat
A, B	IPR036383	Thrombospondin type-1 repeat superfamily	Homologous Superfamily
A, B	IPR001862	Membrane attack complex component/perforin/complement C9	Family
A, B	IPR009030	Growth factor receptor cysteine-rich domain superfamily	Homologous Superfamily
A, B	IPR023415	Low-density lipoprotein (LDL) receptor class A, conserved site	Conserved Site
A, B	IPR036055	LDL receptor-like superfamily	Homologous Superfamily
A, B	IPR020863	Membrane attack complex component/perforin domain, conserved site	Conserved Site

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: BETA-BARREL	Adventitious Membrane Proteins: Beta-sheet Pore-forming Toxins/Attack Complexes	monomeric C9 component of the complement membrane attack Complex

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.