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Q82571

- RDRP_I47A0

UniProt

Q82571 - RDRP_I47A0

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Protein
RNA-directed RNA polymerase catalytic subunit
Gene
PB1
Organism
Influenza A virus (strain A/Fort Monmouth/1/1947 H1N1)
Status
Reviewed - Annotation score: 4 out of 5 - Protein inferred from homologyi

Functioni

RNA-dependent RNA polymerase which is responsible for replication and transcription of virus segments. Binds the promoter sequence of the encapsidated viral RNA. Displays an endonuclease activity involved in cap-stealing. Cleaves cellular pre-mRNA to generate primers for viral transcription.

Catalytic activityi

Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1).

GO - Molecular functioni

  1. RNA-directed RNA polymerase activity Source: UniProtKB-KW
  2. nucleotide binding Source: UniProtKB-KW

GO - Biological processi

  1. suppression by virus of host RNA polymerase II activity Source: UniProtKB-KW
  2. transcription, DNA-templated Source: InterPro
  3. viral RNA genome replication Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Nucleotidyltransferase, RNA-directed RNA polymerase, Transferase

Keywords - Biological processi

Eukaryotic host gene expression shutoff by virus, Eukaryotic host transcription shutoff by virus, Host gene expression shutoff by virus, Host-virus interaction, Inhibition of host RNA polymerase II by virus, Viral RNA replication

Keywords - Ligandi

Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
RNA-directed RNA polymerase catalytic subunit (EC:2.7.7.48)
Alternative name(s):
Polymerase basic protein 1
Short name:
PB1
RNA-directed RNA polymerase subunit P1
Gene namesi
Name:PB1
OrganismiInfluenza A virus (strain A/Fort Monmouth/1/1947 H1N1)
Taxonomic identifieri380282 [NCBI]
Taxonomic lineageiVirusesssRNA negative-strand virusesOrthomyxoviridaeInfluenzavirus A
Virus hostiAves [TaxID: 8782]
Homo sapiens (Human) [TaxID: 9606]
Sus scrofa (Pig) [TaxID: 9823]

Subcellular locationi

Host nucleus Reviewed prediction

GO - Cellular componenti

  1. host cell nucleus Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Host nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 757757RNA-directed RNA polymerase catalytic subunit
PRO_0000078749Add
BLAST

Interactioni

Subunit structurei

Influenza RNA polymerase is composed of three subunits: PB1, PB2 and PA.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini286 – 483198RdRp catalytic
Add
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni249 – 2568Promoter-binding site By similarity

Motif

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Motifi187 – 1959Nuclear localization signal By similarity
Motifi203 – 21614Nuclear localization signal By similarity
Add
BLAST

Sequence similaritiesi

Family and domain databases

InterProiIPR007099. RNA-dir_pol_NSvirus.
IPR001407. RNA_pol_PB1_influenza.
[Graphical view]
PfamiPF00602. Flu_PB1. 1 hit.
[Graphical view]
PIRSFiPIRSF000827. RdRPol_OMV. 1 hit.
PROSITEiPS50525. RDRP_SSRNA_NEG_SEG. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q82571-1 [UniParc]FASTAAdd to Basket

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MDVNPTLLFL KVPAQNAIST TFPYTGDPPY SHGTGTGYTM DTVNRTHQYS    50
ERGRWTTNTE TGAPQLNPID GPLPEDNEPS GYAQTDCVLE AMAFLEESHP 100
GIFENSCIET MEVVQQTRVD KLTQGRQTYD WTLNRNQPAA TALANTIEVF 150
RSNGLTANES GRLIDFLKDV MKSMDKEEME ITTHFQRKRR VRDNVTKKMV 200
TQRTIGKRKQ RLNKRSYLIR ALTLNTMTKD AERGKLKRRA IATPGMQIRG 250
FVYFVETLAR SICEKLEQSG LPVGGNEKKA KLANVVRKMM TNSQDTEISF 300
TITGDNTKWN ENQNPRMFLA MITYMTRNQP EWFRNVLSIA PIMFSNKMAR 350
LGKGYMFESK SMKLRTQIPA EMLANIDLKY FNDSTRKKIE KIRPLLIDGT 400
ASLSPGMMMG MFNMLSTVLG VSILNLGQKR YTKTTYWRDG LQSSDDFALI 450
VNAPNHEGIQ AGVDRFYRTC KLLGINMSKK KSYINRTGTF EFTSFFYRYG 500
FEANFSMELP SFGVSGINES ADMSIGVTVI KNNMINNDLG PATAQMALQL 550
FIKDYRYTYR CHRGDTQIQT RRSFEIKKLW EQTRSKAGLL VSDGGSNLYN 600
IRNLHIPEVC LKWELMDEDY RGRLCNPLNP FVSHKEIESV NNAVMMPAHG 650
PAKNMEYDAV ATTHSWIPKR NRTILNTSQR GILEDEQMYQ RCCNLFEKFF 700
PSSSYRRPVG ISSMVEAMVS RARIDARIDF ESGRIKKEEF TEIMKICSTI 750
EELRRQK 757
Length:757
Mass (Da):86,671
Last modified:November 1, 1996 - v1
Checksum:i7E45D6DE764A7534
GO

Natural variant

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Natural varianti154 – 1541G → D in strain: A/Fort Monmouth/1/1947-MA.
Natural varianti538 – 5381D → G in strain: A/Fort Monmouth/1/1947-MA.

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X99037 Genomic RNA. Translation: CAA67498.1.
X99038 Genomic RNA. Translation: CAA67499.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X99037 Genomic RNA. Translation: CAA67498.1 .
X99038 Genomic RNA. Translation: CAA67499.1 .

3D structure databases

ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Family and domain databases

InterProi IPR007099. RNA-dir_pol_NSvirus.
IPR001407. RNA_pol_PB1_influenza.
[Graphical view ]
Pfami PF00602. Flu_PB1. 1 hit.
[Graphical view ]
PIRSFi PIRSF000827. RdRPol_OMV. 1 hit.
PROSITEi PS50525. RDRP_SSRNA_NEG_SEG. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Mutations in the hemagglutinin and matrix genes of a virulent influenza virus variant, A/FM/1/47-MA, control different stages in pathogenesis."
    Smeenk C.A., Wright K.E., Burns B.F., Thaker A.J., Brown E.G.
    Virus Res. 44:79-95(1996) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC RNA].
    Strain: A/Fort Monmouth/1/1947 and A/Fort Monmouth/1/1947-MA.

Entry informationi

Entry nameiRDRP_I47A0
AccessioniPrimary (citable) accession number: Q82571
Secondary accession number(s): Q82572
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 30, 2000
Last sequence update: November 1, 1996
Last modified: July 9, 2014
This is version 63 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programViral Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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