1QCE

SOLUTION NMR STRUCTURE OF ECTODOMAIN OF SIV GP41, RESTRAINED REGULARIZED MEAN STRUCTURE PLUS 29 SIMULATED ANNEALING STRUCTURES

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	d1qcea_	Coiled coil proteins	Stalk segment of viral fusion proteins	Virus ectodomain	Virus ectodomain	Retrovius gp41 protease-resistant core	(Simian immunodeficiency virus ) [TaxId: 11723 ],	SCOPe (2.08)
B	d1qceb_	Coiled coil proteins	Stalk segment of viral fusion proteins	Virus ectodomain	Virus ectodomain	Retrovius gp41 protease-resistant core	(Simian immunodeficiency virus ) [TaxId: 11723 ],	SCOPe (2.08)
C	d1qcec_	Coiled coil proteins	Stalk segment of viral fusion proteins	Virus ectodomain	Virus ectodomain	Retrovius gp41 protease-resistant core	(Simian immunodeficiency virus ) [TaxId: 11723 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Virus ectodomain	8100074	3001628	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Virus ectodomain	8100074	3001628	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Virus ectodomain	8100074	3001628	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	PF00517	e1qceA1	A: a+b duplicates or obligate multimers	X: MPER trimer (From Topology)	H: MPER trimer (From Topology)	T: MPER trimer	F: PF00517	ECOD (1.6)
B	PF00517	e1qceB1	A: a+b duplicates or obligate multimers	X: MPER trimer (From Topology)	H: MPER trimer (From Topology)	T: MPER trimer	F: PF00517	ECOD (1.6)
C	PF00517	e1qceC1	A: a+b duplicates or obligate multimers	X: MPER trimer (From Topology)	H: MPER trimer (From Topology)	T: MPER trimer	F: PF00517	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.287.210	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)
B	1.10.287.210	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)
C	1.10.287.210	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00517	Retroviral envelope protein (GP41)	Retroviral envelope protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	PROTEIN (GP41)	structural molecule activity	viral process membrane fusion involved in viral entry into host cell virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont entry into host cell symbiont entry into host	cell periphery plasma membrane membrane cellular anatomical entity virion component viral membrane viral envelope host cell plasma membrane host cellular component host cell part host cell membrane virion membrane host intracellular membrane-bounded organelle host intracellular part cell periphery plasma membrane membrane cellular anatomical entity virion component viral membrane viral envelope host cell plasma membrane host cellular component host cell part host cell membrane virion membrane host intracellular membrane-bounded organelle host intracellular part host cell cytoplasm part host intracellular organelle host cell endosome membrane host cell cytoplasm host cell endosome host intracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR000777	Human immunodeficiency virus 1, envelope glycoprotein Gp120	Domain
A, B, C	IPR036377	Gp120 core superfamily	Homologous Superfamily
A, B, C	IPR000328	Retroviral envelope protein GP41-like	Domain

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.