RIR2_IIV6
ID RIR2_IIV6 Reviewed; 360 AA.
AC Q91FE8;
DT 16-JUN-2009, integrated into UniProtKB/Swiss-Prot.
DT 01-DEC-2001, sequence version 1.
DT 03-AUG-2022, entry version 92.
DE RecName: Full=Probable ribonucleoside-diphosphate reductase small subunit 376L;
DE EC=1.17.4.1;
DE AltName: Full=Ribonucleotide reductase small subunit;
GN ORFNames=IIV6-376L;
OS Invertebrate iridescent virus 6 (IIV-6) (Chilo iridescent virus).
OC Viruses; Varidnaviria; Bamfordvirae; Nucleocytoviricota; Megaviricetes;
OC Pimascovirales; Iridoviridae; Betairidovirinae; Iridovirus.
OX NCBI_TaxID=176652;
OH NCBI_TaxID=6997; Acheta domesticus (House cricket).
OH NCBI_TaxID=168631; Chilo suppressalis (Asiatic rice borer moth).
OH NCBI_TaxID=6999; Gryllus bimaculatus (Two-spotted cricket).
OH NCBI_TaxID=58607; Gryllus campestris.
OH NCBI_TaxID=7108; Spodoptera frugiperda (Fall armyworm).
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=11448171; DOI=10.1006/viro.2001.0963;
RA Jakob N.J., Mueller K., Bahr U., Darai G.;
RT "Analysis of the first complete DNA sequence of an invertebrate iridovirus:
RT coding strategy of the genome of Chilo iridescent virus.";
RL Virology 286:182-196(2001).
RN [2]
RP GENOME REANNOTATION.
RX PubMed=17239238; DOI=10.1186/1743-422x-4-11;
RA Eaton H.E., Metcalf J., Penny E., Tcherepanov V., Upton C., Brunetti C.R.;
RT "Comparative genomic analysis of the family Iridoviridae: re-annotating and
RT defining the core set of iridovirus genes.";
RL Virol. J. 4:11-11(2007).
CC -!- FUNCTION: Ribonucleoside-diphosphate reductase holoenzyme provides the
CC precursors necessary for viral DNA synthesis. Allows virus growth in
CC non-dividing cells. Catalyzes the biosynthesis of deoxyribonucleotides
CC from the corresponding ribonucleotides (By similarity). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[thioredoxin]-disulfide + a 2'-deoxyribonucleoside 5'-
CC diphosphate + H2O = [thioredoxin]-dithiol + a ribonucleoside 5'-
CC diphosphate; Xref=Rhea:RHEA:23252, Rhea:RHEA-COMP:10698, Rhea:RHEA-
CC COMP:10700, ChEBI:CHEBI:15377, ChEBI:CHEBI:29950, ChEBI:CHEBI:50058,
CC ChEBI:CHEBI:57930, ChEBI:CHEBI:73316; EC=1.17.4.1;
CC -!- COFACTOR:
CC Name=Fe cation; Xref=ChEBI:CHEBI:24875; Evidence={ECO:0000250};
CC Note=Binds 2 iron ions per subunit. {ECO:0000250};
CC -!- PATHWAY: Genetic information processing; DNA replication.
CC -!- SUBUNIT: Heterotetramer composed of a homodimer of the large subunit
CC (R1) and a homodimer of the small subunit (R2). Larger multisubunit
CC protein complex are also active, composed of (R1)n(R2)n (By
CC similarity). {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the ribonucleoside diphosphate reductase small
CC chain family. {ECO:0000305}.
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DR EMBL; AF303741; AAK82236.1; -; Genomic_DNA.
DR RefSeq; NP_149839.1; NC_003038.1.
DR SMR; Q91FE8; -.
DR PRIDE; Q91FE8; -.
DR GeneID; 1733046; -.
DR KEGG; vg:1733046; -.
DR UniPathway; UPA00326; -.
DR Proteomes; UP000001359; Genome.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0004748; F:ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor; IEA:UniProtKB-EC.
DR GO; GO:0009263; P:deoxyribonucleotide biosynthetic process; IEA:InterPro.
DR GO; GO:0006260; P:DNA replication; IEA:UniProtKB-UniPathway.
DR CDD; cd01049; RNRR2; 1.
DR Gene3D; 1.10.620.20; -; 1.
DR InterPro; IPR009078; Ferritin-like_SF.
DR InterPro; IPR012348; RNR-like.
DR InterPro; IPR033909; RNR_small.
DR InterPro; IPR000358; RNR_small_fam.
DR PANTHER; PTHR23409; PTHR23409; 1.
DR Pfam; PF00268; Ribonuc_red_sm; 1.
DR SUPFAM; SSF47240; SSF47240; 1.
PE 3: Inferred from homology;
KW Deoxyribonucleotide synthesis; Iron; Metal-binding; Oxidoreductase;
KW Reference proteome.
FT CHAIN 1..360
FT /note="Probable ribonucleoside-diphosphate reductase small
FT subunit 376L"
FT /id="PRO_0000376910"
FT ACT_SITE 105
FT /evidence="ECO:0000250"
FT BINDING 67
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000250"
FT BINDING 98
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000250"
FT BINDING 98
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 101
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000250"
FT BINDING 172
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 206
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 209
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
SQ SEQUENCE 360 AA; 42154 MW; D21CAE2D31961145 CRC64;
MSLLKGRNYY KPFTYPEFYN KWDKHEKSHW LPSEVPMHDD VNDWKNRLND NQRDFLTNIF
RFFTQGDVDV ASAYYTQYLP FFKLPEVTMM MGGFAGREGV HIDAYSYLLE TLGMPEATYK
EFLMYEEMKD KQDYIKKFSD SRHILGKGEE NLTTEDKEHI AAGIALFSGF TEGMQLFSTF
AMLLIFPLNG FMKGMGQIVT WSIVDETQHT EGMIELFKVF VEENKTGDQP IRPSVLQETV
YKIAKEMVGL EEAFIDLVFK KYKDEPINDD NDLETKDNKD FFGLTPQRLK AYIKYIADRR
LNLMGYKSIF NLEPYPTNPL PELEIMINAP THTNFFENRS TDYANVSTKG TWSEIWNKPQ
