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B3F2X7

- VP3_ROTTU

UniProt

B3F2X7 - VP3_ROTTU

Protein

Protein VP3

Gene
N/A
Organism
Rotavirus A (isolate Monkey/United States/TUCH/2003 G3-Px[24]-I9-R3-C3-M3-A9-Nx-Tx-Ex-Hx) (RV-A)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi
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    • History
      Entry version 19 (01 Oct 2014)
      Sequence version 1 (22 Jul 2008)
      Previous versions | rss
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    Functioni

    Multifunctional enzyme involved in mRNA capping. Catalyzes the formation of the 5' cap structure on the viral plus-strand transcripts. Specifically binds to GTP and displays guanylyltransferase and methyltransferase activities. Has affinity for ssRNA but not for dsRNA. Capping activity is non-specific and caps RNAs that initiate with either a G or an A residue. Together with VP1 polymerase, forms an enzyme complex positioned near the channels situated at each of the five-fold vertices of the core. Following infection, the outermost layer of the virus is lost, leaving a double-layered particle (DLP) made up of the core and VP6 shell. VP1 then catalyzes the transcription of fully conservative plus-strand genomic RNAs that are capped by VP3 and extruded through the DLP's channels into the cytoplasm where they function as mRNAs for translation of viral proteins. DLPs probably have an RNA triphosphatase activity as well, whereas open cores don't By similarity.By similarity

    Catalytic activityi

    GTP + (5')pp-Pur-mRNA = diphosphate + G(5')ppp-Pur-mRNA.
    S-adenosyl-L-methionine + G(5')pppR-RNA = S-adenosyl-L-homocysteine + m7G(5')pppR-RNA.

    GO - Molecular functioni

    1. GTP binding Source: UniProtKB-KW
    2. mRNA (guanine-N7-)-methyltransferase activity Source: UniProtKB-EC
    3. mRNA guanylyltransferase activity Source: UniProtKB-EC
    4. RNA binding Source: UniProtKB-KW

    GO - Biological processi

    1. viral process Source: InterPro

    Keywords - Molecular functioni

    Methyltransferase, Nucleotidyltransferase, Transferase

    Keywords - Biological processi

    mRNA capping, mRNA processing

    Keywords - Ligandi

    GTP-binding, Nucleotide-binding, RNA-binding, S-adenosyl-L-methionine

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Protein VP3
    Including the following 2 domains:
    mRNA guanylyltransferase (EC:2.7.7.50)
    mRNA (guanine-N(7)-)-methyltransferase (EC:2.1.1.56)
    OrganismiRotavirus A (isolate Monkey/United States/TUCH/2003 G3-Px[24]-I9-R3-C3-M3-A9-Nx-Tx-Ex-Hx) (RV-A)
    Taxonomic identifieri444186 [NCBI]
    Taxonomic lineageiVirusesdsRNA virusesReoviridaeSedoreovirinaeRotavirusRotavirus A
    Virus hostiMacaca mulatta (Rhesus macaque) [TaxID: 9544]

    Subcellular locationi

    Virion Curated
    Note: Attached inside the inner capsid as a minor component. Also found in spherical cytoplasmic structures, called virus factories, that appear early after infection and are the site of viral replication and packaging Potential.Curated

    GO - Cellular componenti

    1. viral nucleocapsid Source: InterPro

    Keywords - Cellular componenti

    Virion

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – 835835Protein VP3PRO_0000368071Add
    BLAST

    Interactioni

    Subunit structurei

    Interacts with VP1 Potential. Interacts with VP2 By similarity.By similarityCurated

    Family & Domainsi

    Compositional bias

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Compositional biasi270 – 2734Poly-Tyr

    Sequence similaritiesi

    Belongs to the rotavirus VP3 family.Curated

    Family and domain databases

    InterProiIPR011181. VP3_Rotav.
    [Graphical view]
    PfamiPF06929. Rotavirus_VP3. 1 hit.
    [Graphical view]
    PIRSFiPIRSF004015. LigT_rotavirus. 1 hit.
    PROSITEiPS51589. SAM_MT56_VP3. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

    B3F2X7-1 [UniParc]FASTAAdd to Basket

    « Hide

    MKVLALRHSV AQVYADTQVY THDDTKDNYE NAFLISNLTT HNILYLNYST    50
    KTLEILNKSG IAAVEIQSLE ELFTLIRCNF TYDYENNIIY LHDYSYYTNN 100
    EIRTDQHWVT KTDIEEYLLP GWKLTYVGYN GSDTRGHYNF SFTCQNAATD 150
    DDLIIEYIYS EALDFQNFML KKIKERMTTS LPIARLSNRV FRDKLFPSLR 200
    KKYQHIVNVG PRNESMFTFL NFPSIKQFSN GPYLVKDTIK LKQERWLGKR 250
    VSQFDIGQYK NMMNVITTVY YYYNLYQKKP IIYMVGSAPS YWIYDVKQYS 300
    DFTFETWDPL DTPYSSIHHK ELFFEKDVAK LRDNSILYID IRTDRRNADW 350
    REWRKTVEEQ TISNLKLAYQ YLASGKSKVC CVKMTAMDLE LPISAKLLHH 400
    PTTEIRSEFY LLLDIWDISN VKRFIPKGVL YSFINNIITE NVFIQPPFKI 450
    KTSKNEYIVA LYALSNDFND RMNVINLINN QKQSLITVRI NNTFKDEPKV 500
    GFKNIYDWTF LPTDFNTTDS IITSYDGCLG IFGLSISLAS KPTGNNHLFI 550
    LNGTDKYYKL DQFANHTGIS RRSHQIRFSE SATSYSGYIF RDLSNNNFNL 600
    IGTNIENSVS GHVYNALIYY RYNYSFDLKR WIYLHSIEKA DIEGGKYYEH 650
    APIELIYACR SAKEFALLQD DLTVLRYANE IERYIHKVYS ITYADDPNYF 700
    IGIKFKHIPY KYDVKIPHLT FGVLFISDNM IPDVTRIIKD MKKELFEMDV 750
    TTSYTYMLSD GTYVANISGV LSTYFKMYNL FYKNQITFGQ SRMFIPHITL 800
    SFSSRKTVRI ETVKLKIDSI YLRKIRGDTV FDMSE 835
    Length:835
    Mass (Da):98,256
    Last modified:July 22, 2008 - v1
    Checksum:iC3BCE50CA7536983
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    EF583012 Genomic RNA. Translation: ABQ59574.1.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    EF583012 Genomic RNA. Translation: ABQ59574.1 .

    3D structure databases

    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Family and domain databases

    InterProi IPR011181. VP3_Rotav.
    [Graphical view ]
    Pfami PF06929. Rotavirus_VP3. 1 hit.
    [Graphical view ]
    PIRSFi PIRSF004015. LigT_rotavirus. 1 hit.
    PROSITEi PS51589. SAM_MT56_VP3. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. Brown T.L., Yang H., Patton J.T.
      Submitted (APR-2007) to the EMBL/GenBank/DDBJ databases
      Cited for: NUCLEOTIDE SEQUENCE [GENOMIC RNA].

    Entry informationi

    Entry nameiVP3_ROTTU
    AccessioniPrimary (citable) accession number: B3F2X7
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: April 14, 2009
    Last sequence update: July 22, 2008
    Last modified: October 1, 2014
    This is version 19 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programViral Protein Annotation Program

    Miscellaneousi

    Keywords - Technical termi

    Multifunctional enzyme

    Documents

    1. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3