Annotations: 1G03

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1g03a_	All alpha proteins	Retrovirus capsid protein, N-terminal core domain	Retrovirus capsid protein, N-terminal core domain	Retrovirus capsid protein, N-terminal core domain	HTLV-I capsid protein	(Human T-cell leukemia virus type I ) [TaxId: 11908 ],	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 N-terminal core domain	8020119	4001095	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Retrovirus capsid protein N-terminal core domain	8032499	3000745	SCOP2 (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_N	e1g03A1	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00607	gag protein p24 N-terminal domain (Gag_p24)	gag protein p24 N-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
A	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	HTLV-I CAPSID PROTEIN	binding organic cyclic compound binding nucleic acid binding structural molecule activity cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	viral process	viral nucleocapsid viral capsid virion component

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR003139	Delta-retroviral matrix protein	Domain
A	IPR045345	Retroviral nucleocapsid Gag protein p24, C-terminal domain	Domain
A	IPR001878	Zinc finger, CCHC-type	Domain
A	IPR036875	Zinc finger, CCHC-type superfamily	Homologous Superfamily
A	IPR008919	Retrovirus capsid, N-terminal	Homologous Superfamily
A	IPR010999	Retroviral matrix protein	Homologous Superfamily
A	IPR008916	Retrovirus capsid, C-terminal	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.