RIR2B_MACFA
ID RIR2B_MACFA Reviewed; 351 AA.
AC Q4R741;
DT 21-MAR-2006, integrated into UniProtKB/Swiss-Prot.
DT 19-JUL-2005, sequence version 1.
DT 03-AUG-2022, entry version 79.
DE RecName: Full=Ribonucleoside-diphosphate reductase subunit M2 B;
DE EC=1.17.4.1;
GN Name=RRM2B; ORFNames=QtsA-16381;
OS Macaca fascicularis (Crab-eating macaque) (Cynomolgus monkey).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini;
OC Cercopithecidae; Cercopithecinae; Macaca.
OX NCBI_TaxID=9541;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Testis;
RG International consortium for macaque cDNA sequencing and analysis;
RT "DNA sequences of macaque genes expressed in brain or testis and its
RT evolutionary implications.";
RL Submitted (JUN-2005) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Plays a pivotal role in cell survival by repairing damaged
CC DNA in a p53/TP53-dependent manner. Supplies deoxyribonucleotides for
CC DNA repair in cells arrested at G1 or G2. Contains an iron-tyrosyl free
CC radical center required for catalysis. Forms an active ribonucleotide
CC reductase (RNR) complex with RRM1 which is expressed both in resting
CC and proliferating cells in response to DNA damage (By similarity).
CC {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 Evidence={ECO:0000255|PROSITE-ProRule:PRU10014};
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 with large (RRM1) subunit. Interacts with
CC p53/TP53. Interacts with RRM1 in response to DNA damage. DNA damage (By
CC similarity). {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}. Nucleus {ECO:0000250}.
CC Note=Translocates from cytoplasm to nucleus in response to DNA damage.
CC {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the ribonucleoside diphosphate reductase small
CC chain family. {ECO:0000305}.
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DR EMBL; AB168988; BAE01083.1; -; mRNA.
DR AlphaFoldDB; Q4R741; -.
DR SMR; Q4R741; -.
DR STRING; 9541.XP_005563891.1; -.
DR eggNOG; KOG1567; Eukaryota.
DR UniPathway; UPA00326; -.
DR Proteomes; UP000233100; Unplaced.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
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:0006281; P:DNA repair; IEA:UniProtKB-KW.
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; IPR030475; RNR_small_AS.
DR InterPro; IPR000358; RNR_small_fam.
DR PANTHER; PTHR23409; PTHR23409; 1.
DR Pfam; PF00268; Ribonuc_red_sm; 1.
DR PIRSF; PIRSF000355; NrdB; 1.
DR SUPFAM; SSF47240; SSF47240; 1.
DR PROSITE; PS00368; RIBORED_SMALL; 1.
PE 2: Evidence at transcript level;
KW Cytoplasm; Deoxyribonucleotide synthesis; DNA damage; DNA repair; Iron;
KW Metal-binding; Nucleus; Oxidoreductase; Reference proteome.
FT CHAIN 1..351
FT /note="Ribonucleoside-diphosphate reductase subunit M2 B"
FT /id="PRO_0000228151"
FT REGION 1..31
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 138
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10014"
FT BINDING 100
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10014"
FT BINDING 131
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10014"
FT BINDING 131
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 134
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10014"
FT BINDING 194
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 228
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 231
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
SQ SEQUENCE 351 AA; 40763 MW; 9887F862C3FD498A CRC64;
MGDPERPEAA GLDLDERSSS DTNDNEIKSN EEPLLRKSSR RFVIFPIQYP DIWKMYKQAQ
ASFWTAEEVD LSKDLPHWNK LKADEKYFIS HILAFFAASD GIVNENLVER FSQEVQVPEA
RCFYGFQILI ENVHSEMYSL LIDTYIRDPK KREFLFNAIE TMPYVKKKAD WALRWIADRK
STFGERVVAF AAVEGIFFSG SFAAIFWLKK RGLMPGLTFS NELISRDEGL HCDFACLMFQ
YLVNKPSEER VREIIVDAVQ IEQEFLTEAL PVGLIGMNCI LMKQYIEFVA DRLLVELGFS
KIFQAENPFD FMENISLEGK TNFFEKRVSE YQRFAVMAET TDNVFTLDAD F
