Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Protein Vpr

Gene

vpr

Organism
Human immunodeficiency virus 1
Status
Unreviewed-Annotation score: Annotation score: 2 out of 5-Protein predictedi

Functioni

During virus entry, involved in the transport of the viral pre-integration (PIC) complex to the nucleus. This function is crucial for viral infection of non-dividing macrophages. May act directly at the nuclear pore complex, by binding nucleoporins phenylalanine-glycine (FG)-repeat regions.UniRule annotation
May target specific host proteins for degradation by the 26S proteasome. Acts by associating with the cellular CUL4A-DDB1 E3 ligase complex through direct interaction with host VPRPB/DCAF-1. This change in the E3 ligase substrate specificity would result in cell cycle arrest or apoptosis in infected cells. Prevents infected cells from undergoing mitosis and proliferating, by inducing arrest or delay in the G2 phase of the cell cycle. This arrest creates a favorable environment for maximizing viral expression and production by rendering the HIV-1 LTR transcriptionally more active. In this context, Vpr stimulates gene expression driven by the HIV-1 LTR by interacting with human SP1, TFIIB and TFIID. Cell cycle arrest reportedly occurs within hours of infection and is not blocked by antiviral agents, suggesting that it is initiated by the Vpr carried into the virion. Additionally, Vpr induces apoptosis in a cell cycle dependent manner suggesting that these two effects are mechanistically linked. Interacts with mitochondrial permeability transition pore complex (PTPC). This interaction induces a rapid dissipation of the mitochondrial transmembrane potential, and mitochondrial release of apoptogenic proteins such as cytochrome C or apoptosis inducing factors. Detected in the serum and cerebrospinal fluid of AIDS patient, Vpr may also induce cell death to bystander cells.UniRule annotation

GO - Biological processi

Keywordsi

Molecular functionActivatorUniRule annotation
Biological processCell cycleUniRule annotation, Host-virus interactionUniRule annotationSAAS annotation, Transcription, Transcription regulationUniRule annotation, Viral penetration into host nucleusUniRule annotation, Virus entry into host cell

Names & Taxonomyi

Protein namesi
Recommended name:
Protein VprUniRule annotation
Alternative name(s):
Viral protein RUniRule annotation
Gene namesi
Name:vprUniRule annotationImported
OrganismiHuman immunodeficiency virus 1Imported
Taxonomic identifieri11676 [NCBI]
Taxonomic lineageiVirusesRetro-transcribing virusesRetroviridaeOrthoretrovirinaeLentivirusPrimate lentivirus group
Virus hostiHomo sapiens (Human) [TaxID: 9606]

Subcellular locationi

  • Host nucleus SAAS annotation
  • Virion UniRule annotation
  • Host nucleus UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Host nucleusUniRule annotationSAAS annotation, VirionUniRule annotationSAAS annotation

Pathology & Biotechi

Keywords - Diseasei

AIDSSAAS annotation

Family & Domainsi

Family and domain databases

InterProiView protein in InterPro
IPR000012. RetroV_VpR/X.
PfamiView protein in Pfam
PF00522. VPR. 1 hit.
PRINTSiPR00444. HIVVPRVPX.

Sequencei

Sequence statusi: Complete.

Q79246-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MEQVPEDQGP QREPYNEWTL ELLEELKTEA VRHFPRVWLH NLGQYIYETY
60 70 80 90
GDTWTGVEXI IRILQQLLFI HFRIGCQHSR IGITRQRRAR NGASRS
Length:96
Mass (Da):11,489
Last modified:November 1, 1996 - v1
Checksum:i3678AD47EEF9822E
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Z68551 Genomic DNA. Translation: CAA92875.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Z68551 Genomic DNA. Translation: CAA92875.1.

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

InterProiView protein in InterPro
IPR000012. RetroV_VpR/X.
PfamiView protein in Pfam
PF00522. VPR. 1 hit.
PRINTSiPR00444. HIVVPRVPX.
ProtoNetiSearch...

Entry informationi

Entry nameiQ79246_9HIV1
AccessioniPrimary (citable) accession number: Q79246
Entry historyiIntegrated into UniProtKB/TrEMBL: November 1, 1996
Last sequence update: November 1, 1996
Last modified: March 15, 2017
This is version 70 of the entry and version 1 of the sequence. See complete history.
Entry statusiUnreviewed (UniProtKB/TrEMBL)

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.