Annotations: 7Z4W

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
Y [auth 5]	SCOP2B Superfamily	Phage head-tail joining protein-like	8106666	3002861	SCOP2B (2022-06-29)
T [auth 4]	SCOP2B Superfamily	Phage head-tail joining protein-like	8106666	3002861	SCOP2B (2022-06-29)
O [auth 3]	SCOP2B Superfamily	Phage head-tail joining protein-like	8106666	3002861	SCOP2B (2022-06-29)
J [auth 2]	SCOP2B Superfamily	Phage head-tail joining protein-like	8106666	3002861	SCOP2B (2022-06-29)
E [auth 1]	SCOP2B Superfamily	Phage head-tail joining protein-like	8106666	3002861	SCOP2B (2022-06-29)
DA [auth 6]	SCOP2B Superfamily	Phage head-tail joining protein-like	8106666	3002861	SCOP2B (2022-06-29)
X [auth j]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	SCOP2B (2022-06-29)
W [auth i]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	SCOP2B (2022-06-29)
S [auth h]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	SCOP2B (2022-06-29)
R [auth g]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	SCOP2B (2022-06-29)
N [auth f]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	SCOP2B (2022-06-29)
M [auth e]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	SCOP2B (2022-06-29)
I [auth d]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	SCOP2B (2022-06-29)
H [auth c]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	SCOP2B (2022-06-29)
D [auth b]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	SCOP2B (2022-06-29)
CA [auth l]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	SCOP2B (2022-06-29)
C [auth a]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	SCOP2B (2022-06-29)
BA [auth k]	SCOP2B Superfamily	YqbG/phage connector protein-like	8104059	3001980	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)
Y [auth 5]	Phage_H_T_join	e7z4w51	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: Phage_H_T_join	ECOD (1.6)
T [auth 4]	Phage_H_T_join	e7z4w41	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: Phage_H_T_join	ECOD (1.6)
O [auth 3]	Phage_H_T_join	e7z4w31	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: Phage_H_T_join	ECOD (1.6)
J [auth 2]	Phage_H_T_join	e7z4w21	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: Phage_H_T_join	ECOD (1.6)
E [auth 1]	Phage_H_T_join	e7z4w11	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: Phage_H_T_join	ECOD (1.6)
DA [auth 6]	Phage_H_T_join	e7z4w61	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: Phage_H_T_join	ECOD (1.6)
X [auth j]	Phage_connect_1	e7z4wj1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
W [auth i]	Phage_connect_1	e7z4wi1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
S [auth h]	Phage_connect_1	e7z4wh1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
R [auth g]	Phage_connect_1	e7z4wg1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
N [auth f]	Phage_connect_1	e7z4wf1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
M [auth e]	Phage_connect_1	e7z4we1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
I [auth d]	Phage_connect_1	e7z4wd1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
H [auth c]	Phage_connect_1	e7z4wc1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
D [auth b]	Phage_connect_1	e7z4wb1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
CA [auth l]	Phage_connect_1	e7z4wl1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
C [auth a]	Phage_connect_1	e7z4wa1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
BA [auth k]	Phage_connect_1	e7z4wk1	A: alpha arrays	X: Hypothetical protein YqbG-like (From Topology)	H: Hypothetical protein YqbG-like (From Topology)	T: Hypothetical protein YqbG-like	F: Phage_connect_1	ECOD (1.6)
Z [auth K]	Phage_prot_Gp6_1st	e7z4wK1	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
Z [auth K]	Phage_prot_Gp6_2nd	e7z4wK2	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)
V [auth J]	Phage_prot_Gp6_1st	e7z4wJ1	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
V [auth J]	Phage_prot_Gp6_2nd	e7z4wJ2	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)
U [auth I]	Phage_prot_Gp6_1st	e7z4wI1	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
U [auth I]	Phage_prot_Gp6_2nd	e7z4wI2	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)
Q [auth H]	Phage_prot_Gp6_1st	e7z4wH1	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
Q [auth H]	Phage_prot_Gp6_2nd	e7z4wH2	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)
P [auth G]	Phage_prot_Gp6_1st	e7z4wG1	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
P [auth G]	Phage_prot_Gp6_2nd	e7z4wG2	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)
L [auth F]	Phage_prot_Gp6_1st	e7z4wF2	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
L [auth F]	Phage_prot_Gp6_2nd	e7z4wF1	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)
K [auth E]	Phage_prot_Gp6_1st	e7z4wE1	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
K [auth E]	Phage_prot_Gp6_2nd	e7z4wE2	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)
G [auth D]	Phage_prot_Gp6_1st	e7z4wD2	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
G [auth D]	Phage_prot_Gp6_2nd	e7z4wD1	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)
F [auth C]	Phage_prot_Gp6_1st	e7z4wC2	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
F [auth C]	Phage_prot_Gp6_2nd	e7z4wC1	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)
B	Phage_prot_Gp6_1st	e7z4wB1	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
B	Phage_prot_Gp6_2nd	e7z4wB2	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)
AA [auth L]	Phage_prot_Gp6_1st	e7z4wL2	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
AA [auth L]	Phage_prot_Gp6_2nd	e7z4wL1	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)
A	Phage_prot_Gp6_1st	e7z4wA2	A: beta barrels	X: Barrel domain in upper collar protein (From Topology)	H: Barrel domain in upper collar protein (From Topology)	T: Barrel domain in upper collar protein	F: Phage_prot_Gp6_1st	ECOD (1.6)
A	Phage_prot_Gp6_2nd	e7z4wA1	A: alpha bundles	X: Alpha-helical domain in upper collar protein (From Topology)	H: Alpha-helical domain in upper collar protein (From Topology)	T: Alpha-helical domain in upper collar protein	F: Phage_prot_Gp6_2nd	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
Y [auth 5]	2.40.10.270	Mainly Beta	Beta Barrel	Thrombin, subunit H	Bacteriophage SPP1 head-tail adaptor protein	CATH (utative)
T [auth 4]	2.40.10.270	Mainly Beta	Beta Barrel	Thrombin, subunit H	Bacteriophage SPP1 head-tail adaptor protein	CATH (utative)
O [auth 3]	2.40.10.270	Mainly Beta	Beta Barrel	Thrombin, subunit H	Bacteriophage SPP1 head-tail adaptor protein	CATH (utative)
J [auth 2]	2.40.10.270	Mainly Beta	Beta Barrel	Thrombin, subunit H	Bacteriophage SPP1 head-tail adaptor protein	CATH (utative)
E [auth 1]	2.40.10.270	Mainly Beta	Beta Barrel	Thrombin, subunit H	Bacteriophage SPP1 head-tail adaptor protein	CATH (utative)
DA [auth 6]	2.40.10.270	Mainly Beta	Beta Barrel	Thrombin, subunit H	Bacteriophage SPP1 head-tail adaptor protein	CATH (utative)
X [auth j]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)
W [auth i]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)
S [auth h]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)
R [auth g]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)
N [auth f]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)
M [auth e]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)
I [auth d]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)
H [auth c]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)
D [auth b]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)
CA [auth l]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)
C [auth a]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)
BA [auth k]	1.10.246.150	Mainly Alpha	Orthogonal Bundle	Serum Albumin	Chain A, Domain 1	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
DA [auth 6], E [auth 1], J [auth 2], O [auth 3], T [auth 4], DA [auth 6], E [auth 1], J [auth 2], O [auth 3], T [auth 4], Y [auth 5]	PF05521	Phage head completion protein (Phage_HCP)	Phage head completion protein	This entry represents the head completion protein (gp16) found in Siphoviridae bacteriophages. This protein functions as a stopper in the portal-tail connector complex, locking the viral DNA inside the capsid. During infection, it undergoes a conform ...	This entry represents the head completion protein (gp16) found in Siphoviridae bacteriophages. This protein functions as a stopper in the portal-tail connector complex, locking the viral DNA inside the capsid. During infection, it undergoes a conformational change, opening by a diaphragm-like motion to allow the genome to exit the capsid through the tail tube to the host cell. The protein also functions as a docking platform for the preassembled tail. The connector complex is essential for stable viral particle assembly and controlled genome release during host infection.	Domain
A, AA [auth L], B, F [auth C], G [auth D], A, AA [auth L], B, F [auth C], G [auth D], K [auth E], L [auth F], P [auth G], Q [auth H], U [auth I], V [auth J], Z [auth K]	PF05133	Phage portal protein, SPP1 Gp6-like (SPP1_portal)	Phage portal protein, SPP1 Gp6-like	-	Family
A, AA [auth L], B, F [auth C], G [auth D], A, AA [auth L], B, F [auth C], G [auth D], K [auth E], L [auth F], P [auth G], Q [auth H], U [auth I], V [auth J], Z [auth K]	PF05135	Phage gp6-like head-tail connector protein (Phage_connect_1)	Phage gp6-like head-tail connector protein	This family of proteins contain head-tail connector proteins related to gp6 from bacteriophage HK97 [1]. A structure of this protein shows similarity to gp15 a well characterised connector component of bacteriophage SPP1 [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
DA [auth 6], E [auth 1], J [auth 2], O [auth 3], T [auth 4], DA [auth 6], E [auth 1], J [auth 2], O [auth 3], T [auth 4], Y [auth 5]	Head completion protein gp16	-	symbiont genome ejection through host cell envelope biological process involved in interspecies interaction between organisms symbiont genome ejection through host cell envelope, long flexible tail mechanism symbiont entry into host cell viral process symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction	virion component
BA [auth k], C [auth a], CA [auth l], D [auth b], H [auth c], BA [auth k], C [auth a], CA [auth l], D [auth b], H [auth c], I [auth d], M [auth e], N [auth f], R [auth g], S [auth h], W [auth i], X [auth j]	Head completion protein gp15	-	symbiont genome ejection through host cell envelope biological process involved in interspecies interaction between organisms symbiont genome ejection through host cell envelope, long flexible tail mechanism symbiont entry into host cell viral process symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction	virion component
A, AA [auth L], B, F [auth C], G [auth D], A, AA [auth L], B, F [auth C], G [auth D], K [auth E], L [auth F], P [auth G], Q [auth H], U [auth I], V [auth J], Z [auth K]	Portal protein	-	symbiont genome ejection through host cell envelope biological process involved in interspecies interaction between organisms symbiont genome ejection through host cell envelope, long flexible tail mechanism symbiont entry into host cell viral process symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction virion assembly viral DNA genome packaging, headful viral genome packaging viral DNA genome packaging	viral procapsid virion component protein-containing complex viral capsid viral portal complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
DA [auth 6], E [auth 1], J [auth 2], O [auth 3], T [auth 4], DA [auth 6], E [auth 1], J [auth 2], O [auth 3], T [auth 4], Y [auth 5]	IPR008767	Bacteriophage SPP1, head-tail adaptor	Family
DA [auth 6], E [auth 1], J [auth 2], O [auth 3], T [auth 4], DA [auth 6], E [auth 1], J [auth 2], O [auth 3], T [auth 4], Y [auth 5]	IPR038666	Bacteriophage SPP1, head-tail adaptor superfamily	Homologous Superfamily
BA [auth k], C [auth a], CA [auth l], D [auth b], H [auth c], BA [auth k], C [auth a], CA [auth l], D [auth b], H [auth c], I [auth d], M [auth e], N [auth f], R [auth g], S [auth h], W [auth i], X [auth j]	IPR021146	Phage gp6-like head-tail connector protein	Family
BA [auth k], C [auth a], CA [auth l], D [auth b], H [auth c], BA [auth k], C [auth a], CA [auth l], D [auth b], H [auth c], I [auth d], M [auth e], N [auth f], R [auth g], S [auth h], W [auth i], X [auth j]	IPR047186	Head-tail connector protein gp6/gp15-like	Family
BA [auth k], C [auth a], CA [auth l], D [auth b], H [auth c], BA [auth k], C [auth a], CA [auth l], D [auth b], H [auth c], I [auth d], M [auth e], N [auth f], R [auth g], S [auth h], W [auth i], X [auth j]	IPR053746	Viral Head-Tail Connector Assembly Factor	Homologous Superfamily
A, AA [auth L], B, F [auth C], G [auth D], A, AA [auth L], B, F [auth C], G [auth D], K [auth E], L [auth F], P [auth G], Q [auth H], U [auth I], V [auth J], Z [auth K]	IPR006428	Portal protein, SPP1-type	Family
A, AA [auth L], B, F [auth C], G [auth D], A, AA [auth L], B, F [auth C], G [auth D], K [auth E], L [auth F], P [auth G], Q [auth H], U [auth I], V [auth J], Z [auth K]	IPR021145	Portal protein SPP1 Gp6-like	Family