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Q9QNA8

- NSP2_ROTHK

UniProt

Q9QNA8 - NSP2_ROTHK

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Protein

Non-structural protein 2

Gene
N/A
Organism
Rotavirus A (strain Human/Japan/KU/1995 G1-P1A[8]-I1-R1-C1-M1-A1-N1-T1-E1-H1) (RV-A)
Status
Reviewed - Annotation score: 3 out of 5- Experimental evidence at transcript leveli

Functioni

Involved in genome replication and packaging. Plays a crucial role, together with NSP5, in the formation of virus factories (viroplasms) which are large inclusions in the cytoplasm where replication intermediates are assembled and RNA replication takes place. Displays ssRNA binding, NTPase, RNA triphosphatase (RTPase) and ATP-independent helix-unwinding activity activities. The unwiding activity may prepare and organize plus-strand RNAs for packaging and replication by removing interfering secondary structures. Unlike typical helicases, NSP2 requires neither a divalent cation nor a nucleotide energy source for helix destabilization. The RTPase activity may account for the absence of the 5'-terminal gamma-phosphate on the minus-strands of dsRNA genome segments (By similarity).By similarity

Cofactori

Magnesium for NTPase activity.By similarity

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi153 – 1531MagnesiumSequence Analysis
Metal bindingi171 – 1711MagnesiumSequence Analysis
Active sitei225 – 2251For NTPase activityBy similarity

GO - Molecular functioni

  1. hydrolase activity, acting on acid anhydrides Source: InterPro
  2. metal ion binding Source: UniProtKB-KW
  3. nucleotide binding Source: UniProtKB-KW
  4. RNA binding Source: UniProtKB-KW

GO - Biological processi

  1. viral genome replication Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Hydrolase

Keywords - Ligandi

Magnesium, Metal-binding, Nucleotide-binding, RNA-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Non-structural protein 2 (EC:3.6.4.-)
Short name:
NSP2
Alternative name(s):
NCVP3
Non-structural RNA-binding protein 35
Short name:
NS35
OrganismiRotavirus A (strain Human/Japan/KU/1995 G1-P1A[8]-I1-R1-C1-M1-A1-N1-T1-E1-H1) (RV-A)
Taxonomic identifieri10952 [NCBI]
Taxonomic lineageiVirusesdsRNA virusesReoviridaeSedoreovirinaeRotavirusRotavirus A
Virus hostiHomo sapiens (Human) [TaxID: 9606]
ProteomesiUP000001458: Genome

Subcellular locationi

Host cytoplasm Curated
Note: Found in spherical cytoplasmic structures, called virus factories, that appear early after infection and are the site of viral replication and packaging.By similarity

GO - Cellular componenti

  1. host cell cytoplasm Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Host cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 317317Non-structural protein 2PRO_0000369536Add
BLAST

Interactioni

Subunit structurei

Homooctamer (By similarity). Interacts with VP1; this interaction is weak. Interacts with NSP5; this interaction leads to up-regulation of NSP5 hyperphosphorylation and formation of virus factories (By similarity).By similarity

Structurei

3D structure databases

ProteinModelPortaliQ9QNA8.
SMRiQ9QNA8. Positions 1-313.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni205 – 24137RNA-bindingSequence AnalysisAdd
BLAST

Sequence similaritiesi

Belongs to the rotavirus NSP2 family.Curated

Family and domain databases

Gene3Di3.30.428.20. 1 hit.
3.90.1400.10. 1 hit.
InterProiIPR003668. Rotavirus_NSP2.
IPR024076. Rotavirus_NSP2_C-term.
IPR024068. Rotavirus_NSP2_N.
[Graphical view]
PfamiPF02509. Rota_NS35. 1 hit.
[Graphical view]
SUPFAMiSSF75347. SSF75347. 1 hit.
SSF75574. SSF75574. 1 hit.

Sequencei

Sequence statusi: Complete.

Q9QNA8-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MAELACFCYP HLENDSYKFI PFNNLAIKCM LTAKVDKKDQ DKFYNSIIYG
60 70 80 90 100
IAPPPQFKKR YNTNDNSRGM NYETPMLIKV AILICEALNS IKVTQSDVAN
110 120 130 140 150
VLSRVVSVRH LENLVLRKEN HQDVLFHSKE LLLKSVLIAI GQSKEIETTA
160 170 180 190 200
TAEGGEIVFQ NVAFTMWKLT YLDHKLMPIL DQNFIEYKIT MNEDKPISDV
210 220 230 240 250
HVKELIAELR WQYNRFAVIT HGKGHYRVVK YSSVANHADR VFATYKNNAK
260 270 280 290 300
SGNVIDFNLL DQRIIWQNWY AFTSSMKQGF TLDVCKKLLF QKMKQERNPF
310
KGLSTDRKMD EVSRIGI
Length:317
Mass (Da):36,719
Last modified:May 1, 2000 - v1
Checksum:i444FC34DBD50A9E4
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AB022770 mRNA. Translation: BAA84967.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
AB022770 mRNA. Translation: BAA84967.1 .

3D structure databases

ProteinModelPortali Q9QNA8.
SMRi Q9QNA8. Positions 1-313.
ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Family and domain databases

Gene3Di 3.30.428.20. 1 hit.
3.90.1400.10. 1 hit.
InterProi IPR003668. Rotavirus_NSP2.
IPR024076. Rotavirus_NSP2_C-term.
IPR024068. Rotavirus_NSP2_N.
[Graphical view ]
Pfami PF02509. Rota_NS35. 1 hit.
[Graphical view ]
SUPFAMi SSF75347. SSF75347. 1 hit.
SSF75574. SSF75574. 1 hit.
ProtoNeti Search...

Publicationsi

  1. "Rotavirus."
    Taniguchi K.
    Submitted (JAN-1999) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].

Entry informationi

Entry nameiNSP2_ROTHK
AccessioniPrimary (citable) accession number: Q9QNA8
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 14, 2009
Last sequence update: May 1, 2000
Last modified: October 29, 2014
This is version 45 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

Complete proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3