ID   COBT_VIBCH              Reviewed;         341 AA.
AC   Q9KSL9;
DT   25-JUL-2003, integrated into UniProtKB/Swiss-Prot.
DT   25-JUL-2003, sequence version 2.
DT   25-MAY-2022, entry version 117.
DE   RecName: Full=Nicotinate-nucleotide--dimethylbenzimidazole phosphoribosyltransferase {ECO:0000255|HAMAP-Rule:MF_00230};
DE            Short=NN:DBI PRT {ECO:0000255|HAMAP-Rule:MF_00230};
DE            EC=2.4.2.21 {ECO:0000255|HAMAP-Rule:MF_00230};
DE   AltName: Full=N(1)-alpha-phosphoribosyltransferase {ECO:0000255|HAMAP-Rule:MF_00230};
GN   Name=cobT {ECO:0000255|HAMAP-Rule:MF_00230}; OrderedLocusNames=VC_1237;
OS   Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Vibrio.
OX   NCBI_TaxID=243277;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 39315 / El Tor Inaba N16961;
RX   PubMed=10952301; DOI=10.1038/35020000;
RA   Heidelberg J.F., Eisen J.A., Nelson W.C., Clayton R.A., Gwinn M.L.,
RA   Dodson R.J., Haft D.H., Hickey E.K., Peterson J.D., Umayam L.A., Gill S.R.,
RA   Nelson K.E., Read T.D., Tettelin H., Richardson D.L., Ermolaeva M.D.,
RA   Vamathevan J.J., Bass S., Qin H., Dragoi I., Sellers P., McDonald L.A.,
RA   Utterback T.R., Fleischmann R.D., Nierman W.C., White O., Salzberg S.L.,
RA   Smith H.O., Colwell R.R., Mekalanos J.J., Venter J.C., Fraser C.M.;
RT   "DNA sequence of both chromosomes of the cholera pathogen Vibrio
RT   cholerae.";
RL   Nature 406:477-483(2000).
CC   -!- FUNCTION: Catalyzes the synthesis of alpha-ribazole-5'-phosphate from
CC       nicotinate mononucleotide (NAMN) and 5,6-dimethylbenzimidazole (DMB).
CC       {ECO:0000255|HAMAP-Rule:MF_00230}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=5,6-dimethylbenzimidazole + nicotinate beta-D-ribonucleotide =
CC         alpha-ribazole 5'-phosphate + H(+) + nicotinate;
CC         Xref=Rhea:RHEA:11196, ChEBI:CHEBI:15378, ChEBI:CHEBI:15890,
CC         ChEBI:CHEBI:32544, ChEBI:CHEBI:57502, ChEBI:CHEBI:57918; EC=2.4.2.21;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00230};
CC   -!- PATHWAY: Nucleoside biosynthesis; alpha-ribazole biosynthesis; alpha-
CC       ribazole from 5,6-dimethylbenzimidazole: step 1/2. {ECO:0000255|HAMAP-
CC       Rule:MF_00230}.
CC   -!- SIMILARITY: Belongs to the CobT family. {ECO:0000255|HAMAP-
CC       Rule:MF_00230}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAF94396.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AE003852; AAF94396.1; ALT_INIT; Genomic_DNA.
DR   PIR; H82223; H82223.
DR   RefSeq; NP_230882.1; NC_002505.1.
DR   RefSeq; WP_000887084.1; NZ_LT906614.1.
DR   AlphaFoldDB; Q9KSL9; -.
DR   SMR; Q9KSL9; -.
DR   STRING; 243277.VC_1237; -.
DR   DNASU; 2614674; -.
DR   EnsemblBacteria; AAF94396; AAF94396; VC_1237.
DR   GeneID; 57739908; -.
DR   KEGG; vch:VC_1237; -.
DR   PATRIC; fig|243277.26.peg.1179; -.
DR   eggNOG; COG2038; Bacteria.
DR   HOGENOM; CLU_002982_0_0_6; -.
DR   OMA; AWMRKCA; -.
DR   UniPathway; UPA00061; UER00516.
DR   Proteomes; UP000000584; Chromosome 1.
DR   GO; GO:0008939; F:nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009236; P:cobalamin biosynthetic process; IEA:UniProtKB-KW.
DR   CDD; cd02439; DMB-PRT_CobT; 1.
DR   Gene3D; 1.10.1610.10; -; 1.
DR   Gene3D; 3.40.50.10210; -; 1.
DR   HAMAP; MF_00230; CobT; 1.
DR   InterPro; IPR003200; Nict_dMeBzImd_PRibTrfase.
DR   InterPro; IPR017846; Nict_dMeBzImd_PRibTrfase_bact.
DR   InterPro; IPR023195; Nict_dMeBzImd_PRibTrfase_N.
DR   InterPro; IPR036087; Nict_dMeBzImd_PRibTrfase_sf.
DR   Pfam; PF02277; DBI_PRT; 1.
DR   SUPFAM; SSF52733; SSF52733; 1.
DR   TIGRFAMs; TIGR03160; cobT_DBIPRT; 1.
PE   3: Inferred from homology;
KW   Cobalamin biosynthesis; Glycosyltransferase; Reference proteome;
KW   Transferase.
FT   CHAIN           1..341
FT                   /note="Nicotinate-nucleotide--dimethylbenzimidazole
FT                   phosphoribosyltransferase"
FT                   /id="PRO_0000167075"
FT   ACT_SITE        310
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00230"
SQ   SEQUENCE   341 AA;  36084 MW;  26D64E4885FD1C2B CRC64;
     MLDRSFSAEI QQRIDQKTKP LGALGQLERV AHHLALIQSQ NQDQAVTQLA IHQPTVLVFA
     ADHGIAAQGV SIAPSAVTEQ MVQNFLAGGA AINCFCRTEH AAMRVIDCGI LRAQPAHADL
     IEQRLGAGTH NLAEQAAMSS EQVQEGIALG KALIHREVES GCNLLMFGEM GIGNTSSAAA
     ILAALSGLPI EVCVGRGTGI TDEQYQRKRA LVTQGVERCL GAAPQDVLQQ VGGFEIVQMV
     GAFMGAYEKQ TPVLVDGFIV TVAAYVATLI EPNVRDFLLF AHCSQETGHR AVLEMLAAEP
     LLDLGLRLGE GTGAVLALGL VRAAVEFYNH MASFADAGVT V