Q4JQV7 (RIR2_VZVO) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 32.
History...
Names·Attributes·General annotation·Ontologies·Interactions·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Interactions·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Ribonucleoside-diphosphate reductase small chain Short name=R2 EC=1.17.4.1 Alternative name(s): Ribonucleotide reductase small subunit | ||
| Gene names |
| ||
| Organism | Varicella-zoster virus (strain Oka vaccine) (HHV-3) (Human herpesvirus 3) [Complete proteome] | ||
| Taxonomic identifier | 341980 [NCBI] | ||
| Taxonomic lineage | Viruses › dsDNA viruses, no RNA stage › Herpesvirales › Herpesviridae › Alphaherpesvirinae › Varicellovirus › ![]() | ||
| Virus host | Homo sapiens (Human) [TaxID: 9606] |
Protein attributes
| Sequence length | 306 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Ribonucleoside-diphosphate reductase holoenzyme provides the precursors necessary for viral DNA synthesis. Allows virus growth in non-dividing cells, as well as reactivation from latency in infected hosts. Catalyzes the biosynthesis of deoxyribonucleotides from the corresponding ribonucleotides. The N-terminal region confers antiapoptotic activity in differentiated cells such as neurons and is important for viral reactivation to increase neural survivability By similarity. |
| Catalytic activity | 2'-deoxyribonucleoside diphosphate + thioredoxin disulfide + H2O = ribonucleoside diphosphate + thioredoxin. |
| Cofactor | Binds 2 iron ions per subunit By similarity. |
| Pathway | |
| Subunit structure | Heterotetramer composed of a homodimer of the large subunit ORF19 (R1) and a homodimer of the small subunit ORF18 (R2). Larger multisubunit protein complex are also active, composed of (R1)n(R2)n By similarity. |
| Subcellular location | Host membrane; Single-pass membrane protein Potential. |
| Sequence similarities | Belongs to the ribonucleoside diphosphate reductase small chain family. |
Ontologies
| Keywords | |
|---|---|
| Biological process | DNA replication |
| Cellular component | Host membrane Membrane |
| Domain | Transmembrane Transmembrane helix |
| Ligand | Iron Metal-binding |
| Molecular function | Oxidoreductase |
| Technical term | Complete proteome |
| Gene Ontology (GO) | |
| Biological_process | DNA replication Inferred from electronic annotation. Source: UniProtKB-UniPathway deoxyribonucleoside diphosphate metabolic processInferred from electronic annotation. Source: InterPro |
| Cellular_component | host cell membrane Inferred from electronic annotation. Source: UniProtKB-SubCell integral to membraneInferred from electronic annotation. Source: UniProtKB-KW ribonucleoside-diphosphate reductase complexInferred from electronic annotation. Source: InterPro |
| Molecular_function | ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor Inferred from electronic annotation. Source: EC transition metal ion bindingInferred from electronic annotation. Source: InterPro |
| Complete GO annotation... | |
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| ORF23 | Q4JQV2 | 3 | EBI-2532450,EBI-2532547 | |
| ORF26 | Q4JQU9 | 3 | EBI-2532450,EBI-2532467 |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 306 | 306 | Ribonucleoside-diphosphate reductase small chain | PRO_0000385164 | |||||
Regions | |||||||||
| Transmembrane | 153 – 173 | 21 | Helical; Potential | ||||||
Sites | |||||||||
| Active site | 103 | 1 | By similarity | ||||||
| Metal binding | 66 | 1 | Iron 1 By similarity | ||||||
| Metal binding | 96 | 1 | Iron 1 By similarity | ||||||
| Metal binding | 96 | 1 | Iron 2 By similarity | ||||||
| Metal binding | 99 | 1 | Iron 1 By similarity | ||||||
| Metal binding | 159 | 1 | Iron 2 By similarity | ||||||
| Metal binding | 193 | 1 | Iron 2 By similarity | ||||||
| Metal binding | 196 | 1 | Iron 2 By similarity | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Comparison of the complete DNA sequences of the Oka varicella vaccine and its parental virus." Gomi Y., Sunamachi H., Mori Y., Nagaike K., Takahashi M., Yamanishi K. J. Virol. 76:11447-11459(2002) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Isolate Human/Japan/P-Oka/1970 and Oka varicella vaccine Biken (V-Oka-Biken). |
| [2] | "Complete DNA sequences of two oka strain varicella-zoster virus genomes." Tillieux S.L., Halsey W.S., Thomas E.S., Voycik J.J., Sathe G.M., Vassilev V. J. Virol. 82:11023-11044(2008) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Oka varicella vaccine VarilRix (V-Oka-GSK) and Oka varicella vaccine Varivax (V-Oka-Merk). |
| [3] | "Tinkering with a viral ribonucleotide reductase." Lembo D., Brune W. Trends Biochem. Sci. 34:25-32(2009) [PubMed] [Europe PMC] [Abstract] Cited for: REVIEW. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AB097932 Genomic DNA. No translation available. AB097933 Genomic DNA. No translation available. DQ008354 Genomic DNA. Translation: AAY57634.1. DQ008355 Genomic DNA. Translation: AAY57705.1. |
| RefSeq | NP_040141.1. NC_001348.1. |
3D structure databases | |
| ProteinModelPortal | Q4JQV7. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q4JQV7. 22 interactions. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| GeneID | 1487715. |
Phylogenomic databases | |
| ProtClustDB | CLSP2509600. |
Enzyme and pathway databases | |
| UniPathway | UPA00326. |
Family and domain databases | |
| Gene3D | 1.10.620.20. 1 hit. |
| InterPro | IPR009078. Ferritin-like_SF. IPR012348. RNR-rel. IPR000358. RNR_small. [Graphical view] |
| PANTHER | PTHR23409. PTHR23409. 1 hit. |
| Pfam | PF00268. Ribonuc_red_sm. 1 hit. [Graphical view] |
| SUPFAM | SSF47240. Ferritin/RR_like. 1 hit. |
| PROSITE | PS00368. RIBORED_SMALL. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Entry information
| Entry name | RIR2_VZVO | ||||||||
| Accession | Primary (citable) accession number: Q4JQV7 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Viral Protein Annotation Program | ||||||||
Relevant documents
| PATHWAY comments Index of metabolic and biosynthesis pathways |
| SIMILARITY comments Index of protein domains and families |

Clusters with
