ID A0A1G1VRK8_9BACT Unreviewed; 647 AA.
AC A0A1G1VRK8;
DT 15-FEB-2017, integrated into UniProtKB/TrEMBL.
DT 15-FEB-2017, sequence version 1.
DT 27-MAR-2024, entry version 19.
DE RecName: Full=Vitamin B12-dependent ribonucleotide reductase {ECO:0000256|RuleBase:RU364064};
DE EC=1.17.4.1 {ECO:0000256|RuleBase:RU364064};
GN ORFNames=A2786_00500 {ECO:0000313|EMBL:OGY17867.1};
OS Candidatus Chisholmbacteria bacterium RIFCSPHIGHO2_01_FULL_52_32.
OC Bacteria; Candidatus Chisholmbacteria.
OX NCBI_TaxID=1797591 {ECO:0000313|EMBL:OGY17867.1, ECO:0000313|Proteomes:UP000179233};
RN [1] {ECO:0000313|EMBL:OGY17867.1, ECO:0000313|Proteomes:UP000179233}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=27774985; DOI=10.1038/ncomms13219;
RA Anantharaman K., Brown C.T., Hug L.A., Sharon I., Castelle C.J.,
RA Probst A.J., Thomas B.C., Singh A., Wilkins M.J., Karaoz U., Brodie E.L.,
RA Williams K.H., Hubbard S.S., Banfield J.F.;
RT "Thousands of microbial genomes shed light on interconnected biogeochemical
RT processes in an aquifer system.";
RL Nat. Commun. 7:13219-13219(2016).
CC -!- FUNCTION: Catalyzes the reduction of ribonucleotides to
CC deoxyribonucleotides. May function to provide a pool of
CC deoxyribonucleotide precursors for DNA repair during oxygen limitation
CC and/or for immediate growth after restoration of oxygen.
CC {ECO:0000256|RuleBase:RU364064}.
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:0000256|ARBA:ARBA00000206,
CC ECO:0000256|RuleBase:RU364064};
CC -!- COFACTOR:
CC Name=adenosylcob(III)alamin; Xref=ChEBI:CHEBI:18408;
CC Evidence={ECO:0000256|ARBA:ARBA00001922,
CC ECO:0000256|RuleBase:RU364064};
CC -!- SIMILARITY: Belongs to the ribonucleoside diphosphate reductase class-2
CC family. {ECO:0000256|ARBA:ARBA00007405, ECO:0000256|RuleBase:RU364064}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OGY17867.1}.
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DR EMBL; MHCJ01000006; OGY17867.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1G1VRK8; -.
DR UniPathway; UPA00326; -.
DR Proteomes; UP000179233; Unassembled WGS sequence.
DR GO; GO:0005524; F:ATP binding; IEA:InterPro.
DR GO; GO:0031419; F:cobalamin 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:UniProtKB-KW.
DR GO; GO:0071897; P:DNA biosynthetic process; IEA:UniProtKB-KW.
DR GO; GO:0006260; P:DNA replication; IEA:InterPro.
DR CDD; cd02888; RNR_II_dimer; 1.
DR Gene3D; 3.20.70.20; -; 1.
DR InterPro; IPR000788; RNR_lg_C.
DR InterPro; IPR013509; RNR_lsu_N.
DR InterPro; IPR013344; RNR_NrdJ/NrdZ.
DR InterPro; IPR008926; RNR_R1-su_N.
DR NCBIfam; TIGR02504; NrdJ_Z; 1.
DR PANTHER; PTHR43371:SF1; RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE; 1.
DR PANTHER; PTHR43371; VITAMIN B12-DEPENDENT RIBONUCLEOTIDE REDUCTASE; 1.
DR Pfam; PF02867; Ribonuc_red_lgC; 1.
DR Pfam; PF00317; Ribonuc_red_lgN; 1.
DR PRINTS; PR01183; RIBORDTASEM1.
DR SUPFAM; SSF51998; PFL-like glycyl radical enzymes; 1.
DR SUPFAM; SSF48168; R1 subunit of ribonucleotide reductase, N-terminal domain; 1.
PE 3: Inferred from homology;
KW Cobalamin {ECO:0000256|ARBA:ARBA00022628, ECO:0000256|RuleBase:RU364064};
KW Cobalt {ECO:0000256|ARBA:ARBA00023285, ECO:0000256|RuleBase:RU364064};
KW Deoxyribonucleotide synthesis {ECO:0000256|ARBA:ARBA00023116};
KW Disulfide bond {ECO:0000256|ARBA:ARBA00023157};
KW DNA synthesis {ECO:0000256|ARBA:ARBA00022634,
KW ECO:0000256|RuleBase:RU364064};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|RuleBase:RU364064};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|RuleBase:RU364064}.
FT DOMAIN 2..76
FT /note="Ribonucleotide reductase large subunit N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00317"
FT DOMAIN 79..576
FT /note="Ribonucleotide reductase large subunit C-terminal"
FT /evidence="ECO:0000259|Pfam:PF02867"
SQ SEQUENCE 647 AA; 70563 MW; 1B39512828314550 CRC64;
MSVNALKAMA RRYLLKDERG NVVETPRQAV ERVAACVSAV EKRQRKAWEQ KFSEIMSTFS
FVPAGCYFRG AGQKRGLLAN CFVLPVEDDM EAIFDAVKWT ALIHQSGGGT GYNFSKLRPN
GDAVGGGGFA SGPVSFMKAF DAATEIVMLG GRHRGANMGI LNADHPDIFE FITCKTQEGE
IGNFNISVGA SDAFMGAVEK DGHWDLVNPR TGAVVRRTKA RTVFDQAVAL AWKTGDPGMI
YLDAINRDNP LLKALGPITA TNVCGEQPLH PFDVCNLGSV NLGKFVKKAK GNPSTSLRTS
GQRAKGKTED LIDWKRLEEV VRIAVRFLDD GIDASFYPIP QISAMAHNVR RIGLGVMGWA
DLLVSLRVRY DSEEAVRLAK KVAQFIQRIG WDESARIAAE KGAFPLWEKS DFARKHPHLG
KRVKVRNVAV TTIAPTGTIS MVADCSSGIE PIFALSFVKN VVDQEGLTYM NTSFEQALAG
AVGNGERSAI EPLLHEVSKT GSVTSVLGIP QWIKDVFRTA HDISPEWHVR MQGAFQEYTD
NAVSKTINFP ESAVIEDVEK AYRLAWKMGC KGITIYRDKS KSVQILEKES KSVRIQSKLS
VTPLAVRAAS FGVGETEGGK CPECGGPMSF TEGCSKCQLC GYSVCEV
//
