3IYI

P22 expanded head coat protein structures reveal a novel mechanism for capsid maturation: Stability without auxiliary proteins or chemical cross-links

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Phage coat protein-like	8054154	3001529	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Phage coat protein-like	8054154	3001529	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Phage coat protein-like	8054154	3001529	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Phage coat protein-like	8054154	3001529	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Phage coat protein-like	8054154	3001529	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Phage coat protein-like	8054154	3001529	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Phage coat protein-like	8054154	3001529	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	P22_CoatProtein_2nd	e3iyiA2	A: beta barrels	X: P22 coat protein insertion domain (From Topology)	H: P22 coat protein insertion domain (From Topology)	T: P22 coat protein insertion domain	F: P22_CoatProtein_2nd	ECOD (1.6)
A	P22_CoatProtein_1st	e3iyiA1	A: a+b three layers	X: Thioredoxin-like	H: Major capsid protein gp5 (From Topology)	T: Major capsid protein gp5	F: P22_CoatProtein_1st	ECOD (1.6)
B	P22_CoatProtein_2nd	e3iyiB1	A: beta barrels	X: P22 coat protein insertion domain (From Topology)	H: P22 coat protein insertion domain (From Topology)	T: P22 coat protein insertion domain	F: P22_CoatProtein_2nd	ECOD (1.6)
B	P22_CoatProtein_1st	e3iyiB2	A: a+b three layers	X: Thioredoxin-like	H: Major capsid protein gp5 (From Topology)	T: Major capsid protein gp5	F: P22_CoatProtein_1st	ECOD (1.6)
C	P22_CoatProtein_2nd	e3iyiC1	A: beta barrels	X: P22 coat protein insertion domain (From Topology)	H: P22 coat protein insertion domain (From Topology)	T: P22 coat protein insertion domain	F: P22_CoatProtein_2nd	ECOD (1.6)
C	P22_CoatProtein_1st	e3iyiC2	A: a+b three layers	X: Thioredoxin-like	H: Major capsid protein gp5 (From Topology)	T: Major capsid protein gp5	F: P22_CoatProtein_1st	ECOD (1.6)
D	P22_CoatProtein_2nd	e3iyiD1	A: beta barrels	X: P22 coat protein insertion domain (From Topology)	H: P22 coat protein insertion domain (From Topology)	T: P22 coat protein insertion domain	F: P22_CoatProtein_2nd	ECOD (1.6)
D	P22_CoatProtein_1st	e3iyiD2	A: a+b three layers	X: Thioredoxin-like	H: Major capsid protein gp5 (From Topology)	T: Major capsid protein gp5	F: P22_CoatProtein_1st	ECOD (1.6)
E	P22_CoatProtein_2nd	e3iyiE2	A: beta barrels	X: P22 coat protein insertion domain (From Topology)	H: P22 coat protein insertion domain (From Topology)	T: P22 coat protein insertion domain	F: P22_CoatProtein_2nd	ECOD (1.6)
E	P22_CoatProtein_1st	e3iyiE1	A: a+b three layers	X: Thioredoxin-like	H: Major capsid protein gp5 (From Topology)	T: Major capsid protein gp5	F: P22_CoatProtein_1st	ECOD (1.6)
F	P22_CoatProtein_2nd	e3iyiF2	A: beta barrels	X: P22 coat protein insertion domain (From Topology)	H: P22 coat protein insertion domain (From Topology)	T: P22 coat protein insertion domain	F: P22_CoatProtein_2nd	ECOD (1.6)
F	P22_CoatProtein_1st	e3iyiF1	A: a+b three layers	X: Thioredoxin-like	H: Major capsid protein gp5 (From Topology)	T: Major capsid protein gp5	F: P22_CoatProtein_1st	ECOD (1.6)
G	P22_CoatProtein_2nd	e3iyiG2	A: beta barrels	X: P22 coat protein insertion domain (From Topology)	H: P22 coat protein insertion domain (From Topology)	T: P22 coat protein insertion domain	F: P22_CoatProtein_2nd	ECOD (1.6)
G	P22_CoatProtein_1st	e3iyiG1	A: a+b three layers	X: Thioredoxin-like	H: Major capsid protein gp5 (From Topology)	T: Major capsid protein gp5	F: P22_CoatProtein_1st	ECOD (1.6)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, G	P22 coat protein in procapsid shells	identical protein binding protein binding binding	virus maturation viral life cycle viral capsid assembly viral procapsid maturation cellular component biogenesis cellular component organization virion assembly cellular component assembly viral process cellular process cellular component organization or biogenesis	viral capsid icosahedral viral capsid T=7 icosahedral viral capsid virion component viral procapsid

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G	IPR024659	Major capsid protein Gp5	Family

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 R01GM133198.