2EIA

X-RAY CRYSTAL STRUCTURE OF EQUINE INFECTIOUS ANEMIA VIRUS (EIAV) CAPSID PROTEIN P26

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2eiaa1	All alpha proteins	Acyl carrier protein-like	Retrovirus capsid dimerization domain-like	Retrovirus capsid protein C-terminal domain	EIAV capsid protein p26	(Equine infectious anemia virus ) [TaxId: 11665 ],	SCOPe (2.08)
A	d2eiaa2	All alpha proteins	Retrovirus capsid protein, N-terminal core domain	Retrovirus capsid protein, N-terminal core domain	Retrovirus capsid protein, N-terminal core domain	EIAV capsid protein p26	(Equine infectious anemia virus ) [TaxId: 11665 ],	SCOPe (2.08)
B	d2eiab1	All alpha proteins	Acyl carrier protein-like	Retrovirus capsid dimerization domain-like	Retrovirus capsid protein C-terminal domain	EIAV capsid protein p26	(Equine infectious anemia virus ) [TaxId: 11665 ],	SCOPe (2.08)
B	d2eiab2	All alpha proteins	Retrovirus capsid protein, N-terminal core domain	Retrovirus capsid protein, N-terminal core domain	Retrovirus capsid protein, N-terminal core domain	EIAV capsid protein p26	(Equine infectious anemia virus ) [TaxId: 11665 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Retrovirus capsid protein C-terminal domain	8024796	4000865	SCOP2 (2022-06-29)
A	SCOP2 Family	Retrovirus capsid protein, N-terminal core domain	8025493	4001095	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Retrovirus capsid dimerization domain-like	8037175	3001819	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Retrovirus capsid protein, N-terminal core domain	8037872	3000745	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Retrovirus capsid protein, N-terminal core domain	8037872	3000745	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Retrovirus capsid dimerization domain-like	8037175	3001819	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	Gag_p24_C	e2eiaA1	A: alpha bundles	X: Retrovirus capsid protein	H: Retrovirus capsid protein-C (From Topology)	T: Retrovirus capsid protein-C	F: Gag_p24_C	ECOD (1.6)
A	Gag_p24_N	e2eiaA2	A: alpha bundles	X: Retrovirus capsid protein	H: Retrovirus capsid protein N-terminal domain (From Topology)	T: Retrovirus capsid protein N-terminal domain	F: Gag_p24_N	ECOD (1.6)
B	Gag_p24_C	e2eiaB1	A: alpha bundles	X: Retrovirus capsid protein	H: Retrovirus capsid protein-C (From Topology)	T: Retrovirus capsid protein-C	F: Gag_p24_C	ECOD (1.6)
B	Gag_p24_N	e2eiaB2	A: alpha bundles	X: Retrovirus capsid protein	H: Retrovirus capsid protein N-terminal domain (From Topology)	T: Retrovirus capsid protein N-terminal domain	F: Gag_p24_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.375.10	Mainly Alpha	Orthogonal Bundle	Human Immunodeficiency Virus Type 1 Capsid Protein	Human Immunodeficiency Virus Type 1 Capsid Protein	CATH (4.3.0)
A	1.10.1200.30	Mainly Alpha	Orthogonal Bundle	Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein	Chain A	CATH (4.3.0)
B	1.10.375.10	Mainly Alpha	Orthogonal Bundle	Human Immunodeficiency Virus Type 1 Capsid Protein	Human Immunodeficiency Virus Type 1 Capsid Protein	CATH (4.3.0)
B	1.10.1200.30	Mainly Alpha	Orthogonal Bundle	Non-ribosomal Peptide Synthetase Peptidyl Carrier Protein	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF19317	Gag protein p24 C-terminal domain (Gag_p24_C)	Gag protein p24 C-terminal domain	p24 forms inner protein layer of the nucleocapsid. ELISA tests for p24 is the most commonly used method to demonstrate virus replication both in vivo and in vitro.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	EIAV CAPSID PROTEIN P26	binding organic cyclic compound binding nucleic acid binding structural constituent of virion structural molecule activity cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	virion assembly viral process viral budding viral budding via host ESCRT complex viral life cycle	viral nucleocapsid viral capsid virion component

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR045345	Retroviral nucleocapsid Gag protein p24, C-terminal domain	Domain
A, B	IPR036875	Zinc finger, CCHC-type superfamily	Homologous Superfamily
A, B	IPR014834	Gag protein p15	Domain
A, B	IPR001878	Zinc finger, CCHC-type	Domain
A, B	IPR008919	Retrovirus capsid, N-terminal	Homologous Superfamily
A, B	IPR010999	Retroviral matrix protein	Homologous Superfamily
A, B	IPR012344	Matrix protein, lentiviral and alpha-retroviral, N-terminal	Homologous Superfamily
A, B	IPR050195	Primate lentivirus group Gag polyprotein	Family
A, B	IPR008916	Retrovirus capsid, C-terminal	Homologous Superfamily

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.