Q3ZK61 (NSP1_ROT41) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names	Recommended name: Non-structural protein 1 Short name=NSP1 Alternative name(s): NCVP2 Non-structural RNA-binding protein 53 Short name=NS53
Organism	Rotavirus A (isolate Human/Belgium/B4106/2000 G3-P11[14]-I2-R2-C2-M3-A9-N2-T6-E5-H3) (RV-A) (Rotavirus A (isolate B4106)) [Complete proteome]
Taxonomic identifier	578843 [NCBI]
Taxonomic lineage	Viruses › dsRNA viruses › Reoviridae › Sedoreovirinae › Rotavirus › Rotavirus A
Virus host	Homo sapiens (Human) [TaxID: 9606]

Protein attributes

Sequence length	492 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Seems to induce the proteasome-dependent degradation of IRF3, IRF5 and IRF7, thereby antagonizing the cellular interferon response and establishment of the antiviral state. Binds and targets IRF3 early post-infection and suppresses IRF3 nuclear translocation By similarity.
Subunit structure	Interacts (via C-terminus) with host IRF3; this interaction leads to IRF3 degradation. Interacts with host IRF7; this interaction leads to IRF7 degradation By similarity.
Subcellular location	Host cytoplasm › host cytoskeleton By similarity.
Domain	The zinc-finger domain is important, but not sufficient for binding and degrading IRF3. It is sometimes described as a RING zinc-finger, but it is atypical and it is unclear whether it is related with ubiquitin ligase activity By similarity.
Sequence similarities	Belongs to the rotavirus A NSP1 family.

Ontologies

Keywords
Biological process	Host-virus interaction Inhibition of host IFN-mediated response initiation by virus Inhibition of host IRF3 by virus Inhibition of host IRF7 by virus Inhibition of host NF-kappa-B by virus Inhibition of host innate immune response by virus Interferon antiviral system evasion Viral immunoevasion
Cellular component	Host cytoplasm Host cytoskeleton
Domain	Zinc-finger
Ligand	Metal-binding RNA-binding Zinc
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	evasion by virus of host immune response Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	host cell cytoplasm Inferred from electronic annotation. Source: UniProtKB-KW host cytoskeleton Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	RNA binding Inferred from electronic annotation. Source: UniProtKB-KW metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 492	492	Non-structural protein 1		PRO_0000369073
Regions
	Zinc finger	42 – 79	38	Potential
	Region	1 – 81	81	RNA-binding By similarity
	Region	82 – 176	95	Important for cytoskeleton localization By similarity
	Region	314 – 492	179	Interaction with IRF3 By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q3ZK61 [UniParc]. Last modified September 27, 2005. Version 1. Checksum: 4AF12AA44E35A127	FASTA	492	57,839
	10 20 30 40 50 60 MATFKDACFH YRRITKLNRE LLRIGANSVW TPVSTNKIKG WCVECCQLTE LTFCHGCSLA 70 80 90 100 110 120 HVCQWCIQNK RCFLDNEPHL LKLRTFESPI TKEKLQCIIN LYNMLFPINS SIINKFRKTV 130 140 150 160 170 180 KQRKCRNEID RSWYNQLLLP ITLNAAVFKF HSREVYIFGF YEGSSSCVNL PYRLVNCIDL 190 200 210 220 230 240 YDKLLLDQIN FDRMSSLPAN LQSIYANKYF KLSRLPSMKL KQIYYSDFSK QNLVNKYKSK 250 260 270 280 290 300 SRMVLRNLTE FTWDSQLNLH YDLLNNKDKI LAALSTSSLK QFETHDLNLG RIKADVFELG 310 320 330 340 350 360 RHCKPNYISS NHWQPASTIS QCKWCNVKYA FRNMDWKMES MYNELLSFIQ SCYKSNVNVG 370 380 390 400 410 420 HCSSIERVYP LVKDILWHSI TKYLDQTIEK LFNAMNPVQV NDQKVISFHW QIDIALYTHI 430 440 450 460 470 480 KMILKTEALP FTFTLHQFNS IIKGIVNQWC NVSELDDLPL CTEQTDTLVR LEEEGKLAEE 490 YELLISDSED DD

References

[1]

"Full genomic analysis of human rotavirus strain B4106 and lapine rotavirus strain 30/96 provides evidence for interspecies transmission." Matthijnssens J., Rahman M., Martella V., Xuelei Y., De Vos S., De Leener K., Ciarlet M., Buonavoglia C., Van Ranst M. J. Virol. 80:3801-3810(2006) [PubMed: 16571797] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC RNA].

Cross-references

Sequence databases
EMBL GenBank DDBJ	AY740735 Genomic RNA. Translation: AAU43793.1.
3D structure databases
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Family and domain databases
InterPro	IPR002148. Rotavirus_NSP1. [Graphical view]
Pfam	PF00981. Rota_NS53. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

NSP1_ROT41

Accession

Primary (citable) accession number: Q3ZK61

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 14, 2009
Last sequence update:	September 27, 2005
Last modified:	October 5, 2010
This is version 32 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Viral Protein Annotation Program