UniProtKB - Q04265 (NEP_I89A7)
Protein
Nuclear export protein
Gene
NS
Organism
Influenza A virus (strain A/Equine/Jillin/1/1989 H3N8)
Status
Functioni
Mediates the nuclear export of encapsidated genomic RNAs (ribonucleoproteins, RNPs). Acts as an adapter between viral RNPs complexes and the nuclear export machinery of the cell. Possesses no intrinsic RNA-binding activity, but includes a C-terminal M1-binding domain. This domain is believed to allow recognition of RNPs bound to the protein M1. Since protein M1 is not available in large quantities before late stages of infection, such an indirect recognition mechanism probably ensures that genomic RNPs are not exported from the host nucleus until sufficient quantities of viral mRNA and progeny genomic RNA have been synthesized. Furthermore, the RNPs enter the host cytoplasm only when associated with the M1 protein that is necessary to guide them to the plasma membrane. May down-regulate viral RNA synthesis when overproduced.UniRule annotation
GO - Biological processi
- exit of virus from host cell nucleus through nuclear pore Source: UniProtKB-UniRule
Keywordsi
Biological process | Host-virus interaction, Transport |
Names & Taxonomyi
Protein namesi | Recommended name: Nuclear export proteinUniRule annotationShort name: NEPUniRule annotation Alternative name(s): Non-structural protein 2UniRule annotation Short name: NS2UniRule annotation |
Gene namesi | Name:NSUniRule annotation |
Organismi | Influenza A virus (strain A/Equine/Jillin/1/1989 H3N8) |
Taxonomic identifieri | 385585 [NCBI] |
Taxonomic lineagei | Viruses › Riboviria › Orthornavirae › Negarnaviricota › Polyploviricotina › Insthoviricetes › Articulavirales › Orthomyxoviridae › Alphainfluenzavirus › |
Virus hosti | Aves [TaxID: 8782] Equus caballus (Horse) [TaxID: 9796] |
Proteomesi |
|
Subcellular locationi
- Virion UniRule annotation
- Host nucleus UniRule annotation
GO - Cellular componenti
- host cell nucleus Source: UniProtKB-SubCell
- virion Source: UniProtKB-SubCell
Keywords - Cellular componenti
Host nucleus, VirionPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000324232 | 1 – 121 | Nuclear export proteinAdd BLAST | 121 |
Interactioni
Subunit structurei
Interacts with protein M1. May interact with host nucleoporin RAB/HRB and exportin XPO1/CRM1.
UniRule annotationFamily & Domainsi
Motif
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Motifi | 12 – 21 | Nuclear export signalUniRule annotation | 10 | |
Motifi | 85 – 94 | Nuclear export signalUniRule annotation | 10 |
Sequence similaritiesi
Belongs to the influenza viruses NEP family.UniRule annotation
Family and domain databases
HAMAPi | MF_04067, INFV_NEP, 1 hit |
InterProi | View protein in InterPro IPR000968, Flu_NS2 |
Pfami | View protein in Pfam PF00601, Flu_NS2, 1 hit |
s (2)i Sequence
Sequence statusi: Complete.
This entry describes 2 produced by isoformsialternative splicing. AlignAdd to basketIsoform NEP (identifier: Q04265-1) [UniParc]FASTAAdd to basket
Also known as: NS2
This isoform has been chosen as the sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. canonicali
10 20 30 40 50
MDSNTTTSFQ DILQRMSKMQ LESSSVDLNG MITQFERLKI YRDSLGESVM
60 70 80 90 100
RMGDLHSLQN RNATWRDELS QKFEEIRWLI AECRNILTKT ENSFEQITFL
110 120
QALQLLLEVE SEIRTFSFQL I
Isoform NS1 (identifier: Q04262-1) [UniParc]FASTAAdd to basket
The sequence of this isoform can be found in the external entry Q04262.
Isoforms of the same protein are often annotated in two different entries if their sequences differ significantly.
Isoforms of the same protein are often annotated in two different entries if their sequences differ significantly.
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | M65020 Other RNA Translation: AAA43492.1 |
PIRi | B45575 |
Keywords - Coding sequence diversityi
Alternative splicingSimilar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | M65020 Other RNA Translation: AAA43492.1 |
PIRi | B45575 |
3D structure databases
SMRi | Q04265 |
ModBasei | Search... |
Family and domain databases
HAMAPi | MF_04067, INFV_NEP, 1 hit |
InterProi | View protein in InterPro IPR000968, Flu_NS2 |
Pfami | View protein in Pfam PF00601, Flu_NS2, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | NEP_I89A7 | |
Accessioni | Q04265Primary (citable) accession number: Q04265 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | March 18, 2008 |
Last sequence update: | November 1, 1996 | |
Last modified: | October 7, 2020 | |
This is version 70 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Viral Protein Annotation Program |