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B4URE1

- NEP_I06A0

UniProt

B4URE1 - NEP_I06A0

Protein

Nuclear export protein

Gene

NS

Organism
Influenza A virus (strain A/Russia:St.Petersburg/8/2006 H1N1)
Status
Reviewed - Annotation score: 2 out of 5- Protein inferred from homologyi
  1. 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 to which the M1 protein is bound. Because the M1 protein is not available in large quantities until the later stages of infection, such an indirect recognition mechanism probably ensures that genomic RNPs are not exported from the nucleus before sufficient quantities of viral mRNA and progeny genomic RNA have been synthesized. Furthermore, the RNPs enters the cytoplasm only when they have associated with the M1 protein that is necessary to guide them to the plasma membrane. May down-regulate viral RNA synthesis when overproduced By similarity.By similarity

    GO - Biological processi

    1. RNA export from nucleus Source: InterPro
    2. viral process Source: UniProtKB-KW

    Keywords - Biological processi

    Host-virus interaction, Transport

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Nuclear export protein
    Short name:
    NEP
    Alternative name(s):
    Non-structural protein 2
    Short name:
    NS2
    Gene namesi
    Name:NS
    OrganismiInfluenza A virus (strain A/Russia:St.Petersburg/8/2006 H1N1)
    Taxonomic identifieri518998 [NCBI]
    Taxonomic lineageiVirusesssRNA negative-strand virusesOrthomyxoviridaeInfluenzavirus A
    Virus hostiAves [TaxID: 8782]
    Homo sapiens (Human) [TaxID: 9606]
    Sus scrofa (Pig) [TaxID: 9823]
    ProteomesiUP000008081: Genome

    Subcellular locationi

    Virion Curated. Host nucleus By similarity

    GO - Cellular componenti

    1. host cell nucleus Source: UniProtKB-SubCell
    2. virion Source: UniProtKB-SubCell

    Keywords - Cellular componenti

    Host nucleus, Virion

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – 121121Nuclear export proteinPRO_0000372946Add
    BLAST

    Interactioni

    Subunit structurei

    Binds M1 protein. May interact with human nucleoporin RAB/HRB and exportin XPO1/CRM1 By similarity.By similarity

    Structurei

    3D structure databases

    ProteinModelPortaliB4URE1.
    SMRiB4URE1. Positions 64-116.
    ModBaseiSearch...
    MobiDBiSearch...

    Family & Domainsi

    Motif

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Motifi12 – 2110Nuclear export signalBy similarity
    Motifi85 – 9410Nuclear export signalBy similarity

    Sequence similaritiesi

    Belongs to the influenza viruses NEP family.Curated

    Family and domain databases

    InterProiIPR000968. Flu_NS2.
    [Graphical view]
    PfamiPF00601. Flu_NS2. 1 hit.
    [Graphical view]

    Sequences (2)i

    Sequence statusi: Complete.

    This entry describes 2 isoformsi produced by alternative splicing. Align

    Isoform NEP (identifier: B4URE1-1) [UniParc]FASTAAdd to Basket

    Also known as: NS2

    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

    MDPNTVSSFQ DILLRMSKMQ LESSSGDLNG MITQFESLKL YRDSLGEAVM    50
    RMGDLHSLQN RNEKWREQLG QKFEEIRWLI EEVRHKLKIT ENSFEQITFM 100
    QALHLLLEVE QEIRTFSFQL I 121
    Length:121
    Mass (Da):14,380
    Last modified:September 23, 2008 - v1
    Checksum:iABFAC522B4F14854
    GO
    Isoform NS1 (identifier: B4URE2-1) [UniParc]FASTAAdd to Basket

    The sequence of this isoform can be found in the external entry B4URE2.
    Isoforms of the same protein are often annotated in two different entries if their sequences differ significantly.
    Length:230
    Mass (Da):25,868
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CY034128 Viral cRNA. Translation: ACF54593.1.

    Keywords - Coding sequence diversityi

    Alternative splicing

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CY034128 Viral cRNA. Translation: ACF54593.1 .

    3D structure databases

    ProteinModelPortali B4URE1.
    SMRi B4URE1. Positions 64-116.
    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Family and domain databases

    InterProi IPR000968. Flu_NS2.
    [Graphical view ]
    Pfami PF00601. Flu_NS2. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. Cited for: NUCLEOTIDE SEQUENCE [GENOMIC RNA].
    2. The NIAID Influenza Genome Sequencing Consortium
      Submitted (JUL-2008) to the EMBL/GenBank/DDBJ databases
      Cited for: NUCLEOTIDE SEQUENCE [GENOMIC RNA].

    Entry informationi

    Entry nameiNEP_I06A0
    AccessioniPrimary (citable) accession number: B4URE1
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: May 5, 2009
    Last sequence update: September 23, 2008
    Last modified: October 1, 2014
    This is version 18 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programViral Protein Annotation Program

    Miscellaneousi

    Miscellaneous

    Average number present in a viral particle is estimated to be 130-200 molecules.

    Keywords - Technical termi

    Complete proteome

    Documents

    1. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3