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P08406

- VP7_ROTP5

UniProt

P08406 - VP7_ROTP5

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Protein

Outer capsid glycoprotein VP7

Gene
N/A
Organism
Rotavirus A (strain Pig/United States/OSU/1977 G5-P9[7]-I5-R1-C1-M1-A1-N1-T1-E1-H1) (RV-A) (Rotavirus A (strain Ohio State University))
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi

Functioni

Outer capsid protein involved in attachment and possibly entry into the host epithelial cell. It is subsequently lost, together with VP4, following virus entry into the host cell. The outer layer contains 780 copies of VP7, grouped as 260 trimers. Rotavirus attachment and entry into the host cell probably involves multiple sequential contacts between the outer capsid proteins VP4 and VP7, and the cell receptors. In integrin-dependent strains, VP7 seems to essentially target the integrin heterodimers ITGAX/ITGB2 and ITGA5/ITGB3 at a postbinding stage, once the initial attachment by VP4 has been achieved By similarity.By similarity

GO - Biological processi

  1. viral process Source: UniProtKB-KW
Complete GO annotation...

Keywords - Biological processi

Host-virus interaction

Keywords - Ligandi

Calcium

Names & Taxonomyi

Protein namesi
Recommended name:
Outer capsid glycoprotein VP7
OrganismiRotavirus A (strain Pig/United States/OSU/1977 G5-P9[7]-I5-R1-C1-M1-A1-N1-T1-E1-H1) (RV-A) (Rotavirus A (strain Ohio State University))
Taxonomic identifieri10915 [NCBI]
Taxonomic lineageiVirusesdsRNA virusesReoviridaeSedoreovirinaeRotavirus
Virus hostiSus scrofa (Pig) [TaxID: 9823]

Subcellular locationi

Virion By similarity. Host endoplasmic reticulum lumen Curated
Note: Immature double-layered particles assembled in the cytoplasm bud across the membrane of the endoplasmic reticulum, acquiring during this process a transient lipid membrane that is modified with the ER resident viral glycoproteins NSP4 and VP7; these enveloped particles also contain VP4. As the particles move towards the interior of the ER cisternae, the transient lipid membrane and the non-structural protein NSP4 are lost, while the virus surface proteins VP4 and VP7 rearrange to form the outermost virus protein layer, yielding mature infectious triple-layered particles By similarity.By similarity

GO - Cellular componenti

  1. host cell endoplasmic reticulum Source: UniProtKB-KW
  2. T=13 icosahedral viral capsid Source: UniProtKB-KW
  3. viral outer capsid Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Capsid protein, Host endoplasmic reticulum, Outer capsid protein, T=13 icosahedral capsid protein, Virion

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 5050Sequence AnalysisAdd
BLAST
Chaini51 – 326276Outer capsid glycoprotein VP7Sequence AnalysisPRO_0000149614Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Glycosylationi69 – 691N-linked (GlcNAc...); by hostSequence Analysis

Post-translational modificationi

The N-terminus is blocked possibly by pyroglutamic acid.By similarity
N-glycosylated.By similarity
Intramolecular disulfide bonds.By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein

Interactioni

Subunit structurei

Homotrimer; in the presence of calcium By similarity. Acquisition of the capsid outer layer requires a high calcium concentration inside the endoplasmic reticulum. Following cell entry, the low calcium concentration in the cytoplasm is probably responsible for the solubilization of the outer layer. Interacts with host integrin heterodimers ITGAX/ITGB2 and ITGA5/ITGB3 By similarity.By similarity

Family & Domainsi

Sequence similaritiesi

Belongs to the rotavirus VP7 family.Curated

Keywords - Domaini

Signal

Family and domain databases

InterProiIPR001963. VP7.
[Graphical view]
PfamiPF00434. VP7. 1 hit.
[Graphical view]
ProDomiPD000191. VP7. 1 hit.
[Graphical view] [Entries sharing at least one domain]

Sequences (2)i

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 2 isoformsi produced by alternative initiation. Align

Isoform 1 (identifier: P08406-1) [UniParc]FASTAAdd to Basket

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

        10         20         30         40         50
MYGIEYTTVL TFLISLVFVN YILKSVTRTM DFIIYRFLLV IVVLAPLIKA
60 70 80 90 100
QNYGINLPIT GSMDTPYMNS TTSETFLTST LCLYYPNEAA TEIADTKWTE
110 120 130 140 150
TLSQLFLTKG WPTGSVYFKG YADIASFSVE PQLYCDYNIV LMKYDGNLQL
160 170 180 190 200
DMSELAGLIL NEWLCNPMDI MLYYYQQTDE ANKWISMGTS CTIKVCPLNT
210 220 230 240 250
QTLGIGCSTT DINSFETVAN AEKLAITDVV DGVNHKLDVT TSTCTIRNCK
260 270 280 290 300
KLGPRENVAV IQVGGPNILD ITADPTTAPQ TERMMRINWK RWWQVFYTIV
310 320
DYVNQIVQVM SKRSRSLDSA AFYYRV
Length:326
Mass (Da):36,977
Last modified:August 1, 1988 - v1
Checksum:i31E63DAD159BCB0A
GO
Isoform 2 (identifier: P08406-2) [UniParc]FASTAAdd to Basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-29: Missing.

Note: Produced by alternative initiation at Met-30 of isoform 1. No experimental confirmation available.

Show »
Length:297
Mass (Da):33,609
Checksum:i62143FDA56663DFF
GO

Sequence cautioni

The sequence CAA28284.1 differs from that shown. Reason: Erroneous initiation.

Alternative sequence

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Alternative sequencei1 – 2929Missing in isoform 2. CuratedVSP_038638Add
BLAST

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X04613 Genomic RNA. Translation: CAA28283.1.
X04613 Genomic RNA. Translation: CAA28284.1. Different initiation.
PIRiA29151. VGXRPR.

Keywords - Coding sequence diversityi

Alternative initiation

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X04613 Genomic RNA. Translation: CAA28283.1 .
X04613 Genomic RNA. Translation: CAA28284.1 . Different initiation.
PIRi A29151. VGXRPR.

3D structure databases

ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Family and domain databases

InterProi IPR001963. VP7.
[Graphical view ]
Pfami PF00434. VP7. 1 hit.
[Graphical view ]
ProDomi PD000191. VP7. 1 hit.
[Graphical view ] [Entries sharing at least one domain ]
ProtoNeti Search...

Publicationsi

  1. "VP7 serotype-specific glycoprotein of OSU porcine rotavirus: coding assignment and gene sequence."
    Gorziglia M., Aguirre Y., Hoshino Y., Esparza J., Blumentals I., Askaa J., Thompson M., Glass R.I., Kapikian A.Z., Chanock R.M.
    J. Gen. Virol. 67:2445-2454(1986) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC RNA].

Entry informationi

Entry nameiVP7_ROTP5
AccessioniPrimary (citable) accession number: P08406
Secondary accession number(s): Q86213
Entry historyi
Integrated into UniProtKB/Swiss-Prot: August 1, 1988
Last sequence update: August 1, 1988
Last modified: October 29, 2014
This is version 75 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programViral Protein Annotation Program

Miscellaneousi

Miscellaneous

In group A rotaviruses, VP7 defines the G serotype.

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3