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

Matrix protein VP40

Gene

VP40

Organism
Reston ebolavirus (strain Philippines-96) (REBOV) (Reston Ebola virus)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Promotes virus assembly and budding by interacting with host proteins of the multivesicular body pathway. May facilitate virus budding by interacting with the nucleocapsid and the plasma membrane. Specific interactions with membrane-associated GP and VP24 during the budding process may also occur. The hexamer form seems to be involved in budding. The octamer form binds RNA, and may play a role in genome replication (By similarity).By similarity

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Ribonucleoprotein

Keywords - Biological processi

Host-virus interaction, Viral budding, Viral budding via the host ESCRT complexes, Viral RNA replication, Virus exit from host cell

Keywords - Ligandi

RNA-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Matrix protein VP40
Alternative name(s):
Membrane-associated protein VP40
Gene namesi
Name:VP40
OrganismiReston ebolavirus (strain Philippines-96) (REBOV) (Reston Ebola virus)
Taxonomic identifieri129003 [NCBI]
Taxonomic lineageiVirusesssRNA virusesssRNA negative-strand virusesMononegaviralesFiloviridaeEbolavirus
Virus hostiHomo sapiens (Human) [TaxID: 9606]
Macaca fascicularis (Crab-eating macaque) (Cynomolgus monkey) [TaxID: 9541]
Pteropodinae [TaxID: 77225]
Sus scrofa (Pig) [TaxID: 9823]
Proteomesi
  • UP000002322 Componenti: Genome

Subcellular locationi

  • Virion membrane By similarity; Peripheral membrane protein By similarity
  • Host late endosome membrane By similarity; Peripheral membrane protein By similarity
  • Host cell membrane By similarity; Peripheral membrane protein By similarity; Cytoplasmic side By similarity
  • Host endomembrane system By similarity; Peripheral membrane protein By similarity

  • Note: In virion, localizes on the intravirional side of the membrane. In the host cell, it is found associated with virus-induced membrane proliferation foci and probably also in multivesicular bodies. These VP40-enriched membrane clusters are then redistributed to the plasma membrane where budding takes place.By similarity

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Host cell membrane, Host endosome, Host membrane, Membrane, Viral matrix protein, Virion

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002450801 – 331Matrix protein VP40Add BLAST331

Interactioni

Subunit structurei

Monomer, homo-hexamer or homo-octamer. Membrane association induces conformational switch from monomer to hexamer. Interacts with host TSG101. Homo-hexamer interacts with the WW domain 3 of host NEDD4. Interacts with the nucleoprotein. May interact with VP35 (By similarity).By similarity

Structurei

3D structure databases

ProteinModelPortaliQ91DD9.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni212 – 214Important for oligomerizationBy similarity3
Regioni213 – 326Membrane-bindingBy similarityAdd BLAST114

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Motifi7 – 10PTAP/PSAP motif4
Motifi10 – 13PPXY motif4

Domaini

Late-budding domains (L domains) are short sequence motifs essential for viral particle budding. They recruit proteins of the host ESCRT machinery (Endosomal Sorting Complex Required for Transport) or ESCRT-associated proteins. VP40 contains two overlapping L domains: a PTAP/PSAP motif, which interacts with the UEV domain of TSG101 and a PPXY motif which interacts with the WW domain 3 of NEDD4.

Sequence similaritiesi

Family and domain databases

InterProiIPR008986. EV_matrix.
[Graphical view]
PfamiPF07447. VP40. 1 hit.
[Graphical view]
PIRSFiPIRSF018327. VP40_FiloV. 1 hit.
SUPFAMiSSF50012. SSF50012. 2 hits.

Sequencei

Sequence statusi: Complete.

Q91DD9-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MRRGVLPTAP PAYNDIAYSM SILPTRPSVI VNETKSDVLA VPGADVPSNS
60 70 80 90 100
MRPVADDNID HSSHTPSGVA SAFILEAKVN VISGTKVLMK QIPIWLPLGV
110 120 130 140 150
ADQKIYSFDS TTAAIMLASY TVTHFGKISN PLVRVNRLGP GIPDHPLRLL
160 170 180 190 200
RLGNQAFLQE FVLPPVQLPQ YFTFDLTALK LITQPLPAAT WTDETPAGAV
210 220 230 240 250
NALRPGLSLH PKLRPILLPG KIGKKGHASD LTSPDKIQTI MNAIPDLKIV
260 270 280 290 300
PIDPIKNIVG IEVPELLVQR LTGKKPQPKN GQPIIPVLLP KYVGLDPISP
310 320 330
GDLTMVITQD CDSCHSPASH PYHMDKQDSY Q
Length:331
Mass (Da):35,863
Last modified:December 1, 2001 - v1
Checksum:iC5FEB11D60218C20
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB050936 Genomic RNA. Translation: BAB69005.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB050936 Genomic RNA. Translation: BAB69005.1.

3D structure databases

ProteinModelPortaliQ91DD9.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

InterProiIPR008986. EV_matrix.
[Graphical view]
PfamiPF07447. VP40. 1 hit.
[Graphical view]
PIRSFiPIRSF018327. VP40_FiloV. 1 hit.
SUPFAMiSSF50012. SSF50012. 2 hits.
ProtoNetiSearch...

Entry informationi

Entry nameiVP40_EBORE
AccessioniPrimary (citable) accession number: Q91DD9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 11, 2006
Last sequence update: December 1, 2001
Last modified: November 30, 2016
This is version 76 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programViral Protein Annotation Program

Miscellaneousi

Miscellaneous

Most abundant protein in the virion.By similarity

Keywords - Technical termi

Complete proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

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.