NSP1_ROTEH
ID NSP1_ROTEH Reviewed; 491 AA.
AC O39821;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 01-JAN-1998, sequence version 1.
DT 23-FEB-2022, entry version 58.
DE RecName: Full=Non-structural protein 1 {ECO:0000255|HAMAP-Rule:MF_04088};
DE Short=NSP1 {ECO:0000255|HAMAP-Rule:MF_04088};
DE AltName: Full=NCVP2 {ECO:0000255|HAMAP-Rule:MF_04088};
DE AltName: Full=Non-structural RNA-binding protein 53 {ECO:0000255|HAMAP-Rule:MF_04088};
DE Short=NS53 {ECO:0000255|HAMAP-Rule:MF_04088};
OS Rotavirus A (isolate RVA/Equine/United Kingdom/H2/1976/G3P4[12]) (RV-A)
OS (Rotavirus A (isolate H-2)).
OC Viruses; Riboviria; Orthornavirae; Duplornaviricota; Resentoviricetes;
OC Reovirales; Reoviridae; Sedoreovirinae; Rotavirus; unclassified Rotavirus.
OX NCBI_TaxID=10939;
OH NCBI_TaxID=9796; Equus caballus (Horse).
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX PubMed=8629937; DOI=10.1007/bf01718584;
RA Kojima K., Taniguchi K., Kobayashi N.;
RT "Species-specific and interspecies relatedness of NSP1 sequences in human,
RT porcine, bovine, feline, and equine rotavirus strains.";
RL Arch. Virol. 141:1-12(1996).
CC -!- FUNCTION: Plays a role in the inhibition of host innate immunity by
CC inducing the degradation of key host factors required to activate
CC interferon production such as IRF3, IRF5 or IRF7. Associates with
CC components of cullin RING ligases (CRLs) including CUL1 or CUL3, which
CC are essential multisubunit ubiquitination complexes, to modulate their
CC activities. {ECO:0000255|HAMAP-Rule:MF_04088}.
CC -!- SUBUNIT: Interacts (via C-terminus) with host IRF3; this interaction
CC leads to IRF3 degradation. Interacts with host IRF7; this interaction
CC leads to IRF7 degradation. Interacts with host CUL1 and CUL3.
CC {ECO:0000255|HAMAP-Rule:MF_04088}.
CC -!- SUBCELLULAR LOCATION: Host cytoplasm, host cytoskeleton
CC {ECO:0000255|HAMAP-Rule:MF_04088}.
CC -!- DOMAIN: The integrity of the zinc-binding domain in NSP1 is important
CC for degradation of host IRF3. {ECO:0000255|HAMAP-Rule:MF_04088}.
CC -!- DOMAIN: The pLxIS motif targets host IRF3 for degradation; however
CC phosphorylation of NSP1 pLxIS motif is not required for its activity.
CC {ECO:0000255|HAMAP-Rule:MF_04088}.
CC -!- SIMILARITY: Belongs to the rotavirus NSP1 family. {ECO:0000255|HAMAP-
CC Rule:MF_04088}.
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DR EMBL; D38157; BAA20548.1; -; Genomic_RNA.
DR GO; GO:0030430; C:host cell cytoplasm; IEA:UniProtKB-UniRule.
DR GO; GO:0044163; C:host cytoskeleton; IEA:UniProtKB-SubCell.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003723; F:RNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0039548; P:suppression by virus of host viral-induced cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF3 activity; IEA:UniProtKB-UniRule.
DR GO; GO:0039557; P:suppression by virus of host viral-induced cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF7 activity; IEA:UniProtKB-UniRule.
DR HAMAP; MF_04088; ROTA_NSP1; 1.
DR InterPro; IPR002148; Rotavirus_NSP1.
DR Pfam; PF00981; Rota_NS53; 1.
PE 3: Inferred from homology;
KW Host cytoplasm; Host cytoskeleton; Host-virus interaction;
KW Inhibition of host innate immune response by virus;
KW Inhibition of host IRF3 by virus; Inhibition of host IRF7 by virus;
KW Inhibition of host RLR pathway by virus;
KW Interferon antiviral system evasion; Metal-binding; RNA-binding;
KW Viral immunoevasion.
FT CHAIN 1..491
FT /note="Non-structural protein 1"
FT /id="PRO_0000369071"
FT REGION 1..81
FT /note="RNA-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04088"
FT REGION 42..79
FT /note="Zinc-binding domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04088"
FT REGION 82..176
FT /note="Important for cytoskeleton localization"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04088"
FT REGION 318..491
FT /note="Interaction with host IRF3"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04088"
FT MOTIF 483..486
FT /note="pLxIS motif"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04088"
SQ SEQUENCE 491 AA; 57783 MW; 2C1933A5DCE09042 CRC64;
MATFKDACFH YRKITKLNRE LLRIGANSVW TSVQSNKIKG WCVECCQLTE LTYCSGCSLA
HVCQLCITNK RCFLDSQPHL LKLRTFESPI TKEKLQCVIN LYDKLFPINN TIINKFKKST
RQRKCRNGLN ETWYNQLLLP ITLNAAVFKF KTRTVYVFGF YEGSVSVENL PYRIINCIDI
YDRLLLDQIN FERMNSLPVS LQSIYAQKYF RVSRIPSMKL RQIYYSDFTK QNLITKYRTK
SRIVHRNISK INWNTEIELH NTLTHNKNKI LEILSTSIER QFLVHDINLG RVKADMFELG
HQCKPNYVSS NHWQPASKIS VCKWCNIKYA FKDMDWRMES MYNELMSFIQ ACYKSNTNVD
HCSSIESIYP IIRNVYWHST TNYIDETLNK LFSMMNPVCI DSQSVINFHC QIDLSLYLHI
KMILEMEVLP FILNVNQFKD IIKGIMNQWC NFSKLSELPL CIESTTTLLE LEKQGKLSEE
YDLLISDSDD D