ID F7XVT9_MIDMI Unreviewed; 341 AA.
AC F7XVT9;
DT 21-SEP-2011, integrated into UniProtKB/TrEMBL.
DT 21-SEP-2011, sequence version 1.
DT 27-MAR-2024, entry version 66.
DE RecName: Full=Ribonucleoside-diphosphate reductase subunit beta {ECO:0000256|PIRNR:PIRNR000355};
DE EC=1.17.4.1 {ECO:0000256|PIRNR:PIRNR000355};
GN Name=nrdF {ECO:0000313|EMBL:AEI88788.1};
GN OrderedLocusNames=midi_00481 {ECO:0000313|EMBL:AEI88788.1};
OS Midichloria mitochondrii (strain IricVA).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rickettsiales;
OC Candidatus Midichloriaceae; Midichloria.
OX NCBI_TaxID=696127 {ECO:0000313|EMBL:AEI88788.1, ECO:0000313|Proteomes:UP000006639};
RN [1] {ECO:0000313|EMBL:AEI88788.1, ECO:0000313|Proteomes:UP000006639}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=IricVA {ECO:0000313|EMBL:AEI88788.1,
RC ECO:0000313|Proteomes:UP000006639};
RX PubMed=21690562; DOI=10.1093/molbev/msr159;
RA Sassera D., Lo N., Epis S., D'Auria G., Montagna M., Comandatore F.,
RA Horner D., Pereto J., Luciano A.M., Franciosi F., Ferri E., Crotti E.,
RA Bazzocchi C., Daffonchio D., Sacchi L., Moya A., Latorre A., Bandi C.;
RT "Phylogenomic evidence for the presence of a flagellum and cbb3 oxidase in
RT the free-living mitochondrial ancestor.";
RL Mol. Biol. Evol. 28:3285-3296(2011).
CC -!- FUNCTION: Provides the precursors necessary for DNA synthesis.
CC Catalyzes the biosynthesis of deoxyribonucleotides from the
CC corresponding ribonucleotides. {ECO:0000256|PIRNR:PIRNR000355}.
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|PIRNR:PIRNR000355};
CC -!- COFACTOR:
CC Name=Fe cation; Xref=ChEBI:CHEBI:24875;
CC Evidence={ECO:0000256|PIRNR:PIRNR000355,
CC ECO:0000256|PIRSR:PIRSR000355-2};
CC Note=Binds 2 iron ions per subunit. {ECO:0000256|PIRNR:PIRNR000355,
CC ECO:0000256|PIRSR:PIRSR000355-2};
CC -!- SIMILARITY: Belongs to the ribonucleoside diphosphate reductase small
CC chain family. {ECO:0000256|ARBA:ARBA00009303,
CC ECO:0000256|PIRNR:PIRNR000355}.
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DR EMBL; CP002130; AEI88788.1; -; Genomic_DNA.
DR AlphaFoldDB; F7XVT9; -.
DR STRING; 696127.midi_00481; -.
DR KEGG; mmn:midi_00481; -.
DR HOGENOM; CLU_035339_1_2_5; -.
DR UniPathway; UPA00326; -.
DR Proteomes; UP000006639; Chromosome.
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:UniProtKB-KW.
DR CDD; cd01049; RNRR2; 1.
DR Gene3D; 1.10.620.20; Ribonucleotide Reductase, subunit A; 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; RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE SMALL CHAIN; 1.
DR PANTHER; PTHR23409:SF18; RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE SUBUNIT M2; 1.
DR Pfam; PF00268; Ribonuc_red_sm; 1.
DR PIRSF; PIRSF000355; NrdB; 1.
DR SUPFAM; SSF47240; Ferritin-like; 1.
PE 3: Inferred from homology;
KW Deoxyribonucleotide synthesis {ECO:0000256|PIRNR:PIRNR000355};
KW Iron {ECO:0000256|PIRNR:PIRNR000355, ECO:0000256|PIRSR:PIRSR000355-2};
KW Metal-binding {ECO:0000256|PIRNR:PIRNR000355,
KW ECO:0000256|PIRSR:PIRSR000355-2};
KW Oxidoreductase {ECO:0000256|PIRNR:PIRNR000355,
KW ECO:0000313|EMBL:AEI88788.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000006639}.
FT ACT_SITE 125
FT /evidence="ECO:0000256|PIRSR:PIRSR000355-1"
FT BINDING 87
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000355-2"
FT BINDING 118
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000355-2"
FT BINDING 118
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000355-2"
FT BINDING 121
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000355-2"
FT BINDING 178
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000355-2"
FT BINDING 212
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000355-2"
FT BINDING 215
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000355-2"
SQ SEQUENCE 341 AA; 40424 MW; 8A0E3A806F017916 CRC64;
MDFFYKDVYD TEYKRICYLS MSLLDSESVY KPFHYPEAYD YWKLQQQLHW LPEEVPMADD
VKDWKKVLTE PEKHLLTQIF RFFTQADIEV NNCYMRHYSR VFKPTEVQMM LAAFSNMETI
HIDAYSHLLD TLGMPEVEYS AFLKYKEMKE KYDYMQQFNV NSKEDIAKTL AVFGAFTEGL
QLFASFAMLL NFQRFGKMKG MGQIIAWSVR DETLHTNAIM WLFKAFITEN PEVWNKKLTD
FLHEACETII KHEDAFIDLA FGFEGAIEGM TASDIKQYIR YIADRRLTQL GLRELYKIER
NPLPWLDEIL NAPEHTNFFE NRVTEYAKAA TKGTWEEAFA V
//
