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Protein

Ribonucleoside-diphosphate reductase small subunit

Gene

RIR2

Organism
Equine herpesvirus 1 (strain Ab4p) (EHV-1) (Equine abortion virus)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

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.UniRule annotation

Catalytic activityi

2'-deoxyribonucleoside diphosphate + thioredoxin disulfide + H2O = ribonucleoside diphosphate + thioredoxin.UniRule annotation

Cofactori

Fe cationUniRule annotation

Pathwayi: DNA replication

This protein is involved in the pathway DNA replication, which is part of Genetic information processing.UniRule annotation
View all proteins of this organism that are known to be involved in the pathway DNA replication and in Genetic information processing.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi78 – 781Iron 1UniRule annotation
Metal bindingi108 – 1081Iron 1UniRule annotation
Metal bindingi108 – 1081Iron 2UniRule annotation
Metal bindingi111 – 1111Iron 1UniRule annotation
Active sitei115 – 1151UniRule annotation
Metal bindingi171 – 1711Iron 2UniRule annotation
Metal bindingi205 – 2051Iron 2UniRule annotation
Metal bindingi208 – 2081Iron 2UniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

DNA replication

Keywords - Ligandi

Iron, Metal-binding

Enzyme and pathway databases

UniPathwayiUPA00326.

Names & Taxonomyi

Protein namesi
Recommended name:
Ribonucleoside-diphosphate reductase small subunitUniRule annotation (EC:1.17.4.1UniRule annotation)
Alternative name(s):
Ribonucleotide reductase small subunitUniRule annotation
Gene namesi
Name:RIR2UniRule annotation
Synonyms:20
OrganismiEquine herpesvirus 1 (strain Ab4p) (EHV-1) (Equine abortion virus)
Taxonomic identifieri31520 [NCBI]
Taxonomic lineageiVirusesdsDNA viruses, no RNA stageHerpesviralesHerpesviridaeAlphaherpesvirinaeVaricellovirus
Virus hostiEquus caballus (Horse) [TaxID: 9796]
Proteomesi
  • UP000001189 Componenti: Genome

Subcellular locationi

  • Host membrane UniRule annotation; Single-pass membrane protein UniRule annotation

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei165 – 18521HelicalUniRule annotationAdd
BLAST

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Host membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 321321Ribonucleoside-diphosphate reductase small subunitPRO_0000190508Add
BLAST

Interactioni

Subunit structurei

Heterotetramer composed of a homodimer of the large subunit (R1) and a homodimer of the small subunit (R2). Larger multisubunit protein complex are also active, composed of (R1)n(R2)n.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliP28847.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the ribonucleoside diphosphate reductase small chain family.UniRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

KOiK10808.

Family and domain databases

Gene3Di1.10.620.20. 1 hit.
HAMAPiMF_04028. HSV_RIR2. 1 hit.
InterProiIPR009078. Ferritin-like_SF.
IPR012348. RNR-rel.
IPR000358. RNR_small.
IPR030475. RNR_small_AS.
[Graphical view]
PANTHERiPTHR23409. PTHR23409. 1 hit.
PfamiPF00268. Ribonuc_red_sm. 1 hit.
[Graphical view]
SUPFAMiSSF47240. SSF47240. 1 hit.
PROSITEiPS00368. RIBORED_SMALL. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P28847-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSIENSKEAA LTAELSLAGA FFYTPECPDI EHLRSLSVAN RWLDTDLPIS
60 70 80 90 100
DDLKDVAKLT PAEREFYRFL FAFLSAADDL VNLNLGDLSA LFTQKDILHY
110 120 130 140 150
YIEQESIEVT HSRVYSAIQL MLFGNDAAAR ARYVASIIGD AAIGRKVAWL
160 170 180 190 200
QAKVRECGSV AEKYILMILI EGLFFASSFA SIAYLRTHNL FVVTCQSNDL
210 220 230 240 250
ISRDEAIHTR ASCCIYNNYL GGFEKPEPKR IYELFSEAVN IECEFLLSHA
260 270 280 290 300
PQYSHLLDIG AIISYVRYSA DRLLGEIGLS PLFNAPKPSP SFPLAFMTVE
310 320
KHTNFFERRS TAYSGTLIND L
Length:321
Mass (Da):36,017
Last modified:December 1, 1992 - v1
Checksum:i81E1FF57B12B84A4
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY665713 Genomic DNA. Translation: AAT67277.1.
PIRiC36797. WMBEA1.
RefSeqiYP_053065.1. NC_001491.2.

Genome annotation databases

GeneIDi1487524.
KEGGivg:1487524.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY665713 Genomic DNA. Translation: AAT67277.1.
PIRiC36797. WMBEA1.
RefSeqiYP_053065.1. NC_001491.2.

3D structure databases

ProteinModelPortaliP28847.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi1487524.
KEGGivg:1487524.

Phylogenomic databases

KOiK10808.

Enzyme and pathway databases

UniPathwayiUPA00326.

Family and domain databases

Gene3Di1.10.620.20. 1 hit.
HAMAPiMF_04028. HSV_RIR2. 1 hit.
InterProiIPR009078. Ferritin-like_SF.
IPR012348. RNR-rel.
IPR000358. RNR_small.
IPR030475. RNR_small_AS.
[Graphical view]
PANTHERiPTHR23409. PTHR23409. 1 hit.
PfamiPF00268. Ribonuc_red_sm. 1 hit.
[Graphical view]
SUPFAMiSSF47240. SSF47240. 1 hit.
PROSITEiPS00368. RIBORED_SMALL. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiRIR2_EHV1B
AccessioniPrimary (citable) accession number: P28847
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 1, 1992
Last sequence update: December 1, 1992
Last modified: July 6, 2016
This is version 88 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. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.