Annotations: 2N29

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2n29a_	Small proteins	HIV-1 VPU cytoplasmic domain	HIV-1 VPU cytoplasmic domain	HIV-1 VPU cytoplasmic domain	automated matches	HIV-1 (Human immunodeficiency virus 1 ) [TaxId: 11676 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	HIV-1 VPU cytoplasmic domain	8078231	4003559	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	HIV-1 VPU cytoplasmic domain	8078232	3001055	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	Vpu	e2n29A1	A: few secondary structure elements	X: HIV-1 VPU cytoplasmic domain (From Topology)	H: HIV-1 VPU cytoplasmic domain (From Topology)	T: HIV-1 VPU cytoplasmic domain	F: Vpu	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00558	Vpu protein (Vpu)	Vpu protein	The Vpu protein contains an N-terminal transmembrane spanning region and a C-terminal cytoplasmic region. The HIV-1 Vpu protein stimulates virus production by enhancing the release of viral particles from infected cells. The VPU protein binds specif ...	The Vpu protein contains an N-terminal transmembrane spanning region and a C-terminal cytoplasmic region. The HIV-1 Vpu protein stimulates virus production by enhancing the release of viral particles from infected cells. The VPU protein binds specifically to CD4.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Protein Vpu	protein binding binding signaling receptor binding CD4 receptor binding monoatomic cation transmembrane transporter activity monoatomic cation channel activity passive transmembrane transporter activity monoatomic ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity	symbiont-mediated perturbation of host defense response suppression by virus of host tetherin activity response to host defenses biological process involved in interspecies interaction between organisms response to stimulus response to other organism response to defenses of other organism modulation by virus of host process response to external stimulus virus-mediated perturbation of host defense response biological process involved in interaction with host response to biotic stimulus biological process involved in symbiotic interaction modulation by symbiont of host process viral process symbiont-mediated perturbation of host defense response suppression by virus of host tetherin activity response to host defenses biological process involved in interspecies interaction between organisms response to stimulus response to other organism response to defenses of other organism modulation by virus of host process response to external stimulus virus-mediated perturbation of host defense response biological process involved in interaction with host response to biotic stimulus biological process involved in symbiotic interaction modulation by symbiont of host process viral process response to host response to external biotic stimulus modulation of process of another organism modulation by virus of host cellular process exit from host cell viral release from host cell viral life cycle receptor catabolic process catabolic process cellular metabolic process macromolecule catabolic process cellular catabolic process organic substance metabolic process receptor metabolic process metabolic process cellular process macromolecule metabolic process organic substance catabolic process symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host type I interferon-mediated signaling pathway symbiont-mediated suppression of host signal transduction pathway symbiont-mediated suppression of host interferon-mediated signaling pathway symbiont-mediated perturbation of host signal transduction pathway	host cellular component host cell part host cell membrane cellular anatomical entity membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR008187	Vpu protein	Family
A	IPR009032	Vpu protein cytoplasmic domain superfamily	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.