NSP1_ROTRA
ID NSP1_ROTRA Reviewed; 492 AA.
AC Q9WC80;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1999, sequence version 1.
DT 23-FEB-2022, entry version 53.
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 (strain RVA/Rabbit/United States/ALA/XXXX/G3P11[14]) (RV-A)
OS (Rotavirus A (strain Alabama)).
OC Viruses; Riboviria; Orthornavirae; Duplornaviricota; Resentoviricetes;
OC Reovirales; Reoviridae; Sedoreovirinae; Rotavirus; Rotavirus A.
OX NCBI_TaxID=101359;
OH NCBI_TaxID=9986; Oryctolagus cuniculus (Rabbit).
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX PubMed=10769066; DOI=10.1099/0022-1317-81-5-1237;
RA Ciarlet M., Estes M.K., Conner M.E.;
RT "Simian rhesus rotavirus is a unique heterologous (non-lapine) rotavirus
RT strain capable of productive replication and horizontal transmission in
RT rabbits.";
RL J. Gen. Virol. 81:1237-1249(2000).
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; AF084549; AAD33100.1; -; 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..492
FT /note="Non-structural protein 1"
FT /id="PRO_0000369093"
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..492
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 492 AA; 58020 MW; EF878AF133650190 CRC64;
MATFKDACFH YRRVTKLNRE LLRIGANSVW TPVSTNKIRG WCVECCQLTE LTFCHGCSLA
HVCQWCIQNK RCFLDNEPHL LKLRTFESPI TKEKLQCIID LYNLLFPINS SIVNKFKKTV
KQRKCRNEFD KLWYNQLLLP ITLNAAVFKF HSRKVYVFGF YEGSSPCVNL PYKLVNCIDL
YDKLLLDQVN FERMSSLPSN LQSIYANKYF KLSRIPSMKL KQIYYSDFSK QNLINKYKFK
SRIVLRNFTE FTWDFQLSLH YDLFNNKDKI FAALSTSSLK QFETHDLNLG RVKADVFELG
RHCKPNYISS NHWQPASTIS QCKWCNVKYA FRDMDWKMES MYNELLSFIQ SCYKSNVSVG
HCSSIERAYP LVKDVLWHSI TKYIDQTIEK LFNVMNPVQV NNQKVISFHW QIDIALYTHI
KMILKTERLP FTFTLDQFNS VIKGIVNQWC NVNELDNLPL CTEQTDTLVR LEEEGKLAEE
YELLISDSED DD