B3ST91 · B3ST91_9PAPI
- ProteinProtein E7
- GeneE7
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids108 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Plays a role in viral genome replication by driving entry of quiescent cells into the cell cycle. Stimulation of progression from G1 to S phase allows the virus to efficiently use the cellular DNA replicating machinery to achieve viral genome replication. E7 protein has both transforming and trans-activating activities. Induces the disassembly of the E2F1 transcription factor from RB1, with subsequent transcriptional activation of E2F1-regulated S-phase genes. Interferes with host histone deacetylation mediated by HDAC1 and HDAC2, leading to transcription activation. Plays also a role in the inhibition of both antiviral and antiproliferative functions of host interferon alpha. Interaction with host TMEM173/STING impairs the ability of TMEM173/STING to sense cytosolic DNA and promote the production of type I interferon (IFN-alpha and IFN-beta).
GO annotations
all annotations | all molecular function | virus receptor activity | dna binding | rna binding | cytoskeletal motor activity | catalytic activity | gtpase activity | structural molecule activity | transporter activity | cytoskeletal protein binding | lipid binding | cyclase activity | antioxidant activity | oxidoreductase activity | transferase activity | hydrolase activity | lyase activity | isomerase activity | ligase activity | protein tag activity | cargo receptor activity | histone binding | protein folding chaperone | translation regulator activity | nutrient reservoir activity | receptor ligand activity | molecular transducer activity | molecular adaptor activity | toxin activity | cell adhesion mediator activity | molecular function regulator activity | virus coreceptor activity | catalytic activity, acting on a protein | catalytic activity, acting on dna | catalytic activity, acting on rna | molecular carrier activity | transcription regulator activity | general transcription initiation factor activity | molecular sensor activity | molecular sequestering activity | atp-dependent activity | other molecular function | all biological process | mitotic cell cycle | cytokinesis | cytoplasmic translation | immune system process | muscle system process | circulatory system process | renal system process | respiratory system process | carbohydrate metabolic process | generation of precursor metabolites and energy | dna replication | dna repair | dna recombination | chromatin organization | dna-templated transcription | regulation of dna-templated transcription | trna metabolic process | protein folding | protein glycosylation | amino acid metabolic process | modified amino acid metabolic process | lipid metabolic process | vitamin metabolic process | sulfur compound metabolic process | intracellular protein transport | nucleocytoplasmic transport | autophagy | inflammatory response | mitochondrion organization | cytoskeleton organization | microtubule-based movement | peroxisome organization | lysosome organization | chromosome segregation | cell adhesion | establishment or maintenance of cell polarity | programmed cell death | photosynthesis | mrna metabolic process | snrna metabolic process | vesicle-mediated transport | reproductive process | digestive system process | signaling | cell differentiation | protein catabolic process | extracellular matrix organization | regulatory ncrna-mediated gene silencing | telomere organization | cell junction organization | wound healing | ribosome biogenesis | cilium organization | anatomical structure development | cell motility | nervous system process | endocrine process | protein maturation | transmembrane transport | nucleobase-containing small molecule metabolic process | hepaticobiliary system process | membrane organization | protein-containing complex assembly | cell wall organization or biogenesis | nitrogen cycle metabolic process | protein localization to plasma membrane | defense response to other organism | detoxification | meiotic nuclear division | mitotic nuclear division | mitochondrial gene expression | carbohydrate derivative metabolic process | other biological process | all cellular component | nuclear chromosome | extracellular region | extracellular space | cell wall | nucleus | nuclear envelope | nucleoplasm | chromosome | nucleolus | mitochondrion | lysosome | endosome | vacuole | peroxisome | endoplasmic reticulum | golgi apparatus | lipid droplet | microtubule organizing center | cytosol | ribosome | cytoskeleton | plasma membrane | cilium | plastid | thylakoid | external encapsulating structure | extracellular matrix | cytoplasmic vesicle | organelle | other cellular component | |||
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Aspect | Term | |
---|---|---|
Cellular Component | host cell cytoplasm | |
Cellular Component | host cell nucleus | |
Molecular Function | DNA binding | |
Molecular Function | DNA-binding transcription factor activity | |
Molecular Function | metal ion binding | |
Molecular Function | protein domain specific binding | |
Biological Process | DNA-templated transcription | |
Biological Process | symbiont-mediated perturbation of host cell cycle G1/S transition checkpoint | |
Biological Process | symbiont-mediated suppression of host innate immune response | |
Biological Process | symbiont-mediated suppression of host type I interferon-mediated signaling pathway | |
Biological Process | virus-mediated perturbation of host defense response |
Keywords
- Molecular function
- Biological process
- Ligand
Names & Taxonomy
Protein names
- Recommended nameProtein E7
Gene names
Organism names
- Strains
- Taxonomic lineageViruses > Monodnaviria > Shotokuvirae > Cossaviricota > Papovaviricetes > Zurhausenvirales > Papillomaviridae > Firstpapillomavirinae > Deltapapillomavirus > Deltapapillomavirus 5
Accessions
- Primary accessionB3ST91
Proteomes
Subcellular Location
UniProt Annotation
GO Annotation
Note: Predominantly found in the host nucleus.
Keywords
- Cellular component
PTM/Processing
Post-translational modification
Highly phosphorylated.
Expression
Keywords
- Developmental stage
Interaction
Subunit
Homodimer. Homooligomer. Interacts with host RB1; this interaction induces dissociation of RB1-E2F1 complex thereby disrupting RB1 activity. Interacts with host EP300; this interaction represses EP300 transcriptional activity. Interacts with protein E2; this interaction inhibits E7 oncogenic activity. Interacts with host TMEM173/STING; this interaction impairs the ability of TMEM173/STING to sense cytosolic DNA and promote the production of type I interferon (IFN-alpha and IFN-beta).
Structure
Family & Domains
Features
Showing features for zinc finger, motif.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Zinc finger | 65-101 | ||||
Motif | 83-91 | Nuclear export signal | |||
Domain
The E7 terminal domain is an intrinsically disordered domain, whose flexibility and conformational transitions confer target adaptability to the oncoprotein. It allows adaptation to a variety of protein targets and exposes the PEST degradation sequence that regulates its turnover in the cell.
Sequence similarities
Belongs to the papillomaviridae E7 protein family.
Keywords
- Domain
Family and domain databases
Sequence
- Sequence statusComplete
- Length108
- Mass (Da)11,845
- Last updated2008-09-02 v1
- ChecksumF0E2568C53067F64
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
EF680235 EMBL· GenBank· DDBJ | ABV27561.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
MT774138 EMBL· GenBank· DDBJ | QNR09262.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
MT774139 EMBL· GenBank· DDBJ | QNR09270.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
MT774140 EMBL· GenBank· DDBJ | QNR09278.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
MT774141 EMBL· GenBank· DDBJ | QNR09286.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
MT774142 EMBL· GenBank· DDBJ | QNR09294.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
MT774143 EMBL· GenBank· DDBJ | QNR09302.1 EMBL· GenBank· DDBJ | Genomic DNA |