ID   COBS_CLOBA              Reviewed;         252 AA.
AC   B2UXE0;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 67.
DE   RecName: Full=Adenosylcobinamide-GDP ribazoletransferase {ECO:0000255|HAMAP-Rule:MF_00719};
DE            EC=2.7.8.26 {ECO:0000255|HAMAP-Rule:MF_00719};
DE   AltName: Full=Cobalamin synthase {ECO:0000255|HAMAP-Rule:MF_00719};
DE   AltName: Full=Cobalamin-5'-phosphate synthase {ECO:0000255|HAMAP-Rule:MF_00719};
GN   Name=cobS {ECO:0000255|HAMAP-Rule:MF_00719}; OrderedLocusNames=CLH_2665;
OS   Clostridium botulinum (strain Alaska E43 / Type E3).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Clostridiaceae;
OC   Clostridium.
OX   NCBI_TaxID=508767;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Alaska E43 / Type E3;
RA   Brinkac L.M., Brown J.L., Bruce D., Detter C., Munk C., Smith L.A.,
RA   Smith T.J., Sutton G., Brettin T.S.;
RT   "Complete genome sequence of Clostridium botulinum E3 str. Alaska E43.";
RL   Submitted (MAY-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Joins adenosylcobinamide-GDP and alpha-ribazole to generate
CC       adenosylcobalamin (Ado-cobalamin). Also synthesizes adenosylcobalamin
CC       5'-phosphate from adenosylcobinamide-GDP and alpha-ribazole 5'-
CC       phosphate. {ECO:0000255|HAMAP-Rule:MF_00719}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosylcob(III)inamide-GDP + alpha-ribazole =
CC         adenosylcob(III)alamin + GMP + H(+); Xref=Rhea:RHEA:16049,
CC         ChEBI:CHEBI:10329, ChEBI:CHEBI:15378, ChEBI:CHEBI:18408,
CC         ChEBI:CHEBI:58115, ChEBI:CHEBI:60487; EC=2.7.8.26;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00719};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosylcob(III)inamide-GDP + alpha-ribazole 5'-phosphate =
CC         adenosylcob(III)alamin 5'-phosphate + GMP + H(+);
CC         Xref=Rhea:RHEA:23560, ChEBI:CHEBI:15378, ChEBI:CHEBI:57918,
CC         ChEBI:CHEBI:58115, ChEBI:CHEBI:60487, ChEBI:CHEBI:60493; EC=2.7.8.26;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00719};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00719};
CC   -!- PATHWAY: Cofactor biosynthesis; adenosylcobalamin biosynthesis;
CC       adenosylcobalamin from cob(II)yrinate a,c-diamide: step 7/7.
CC       {ECO:0000255|HAMAP-Rule:MF_00719}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_00719};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_00719}.
CC   -!- SIMILARITY: Belongs to the CobS family. {ECO:0000255|HAMAP-
CC       Rule:MF_00719}.
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DR   EMBL; CP001078; ACD51595.1; -; Genomic_DNA.
DR   RefSeq; WP_012449923.1; NC_010723.1.
DR   AlphaFoldDB; B2UXE0; -.
DR   KEGG; cbt:CLH_2665; -.
DR   HOGENOM; CLU_057426_1_2_9; -.
DR   OMA; GHTGDTY; -.
DR   OrthoDB; 1996371at2; -.
DR   UniPathway; UPA00148; UER00238.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0051073; F:adenosylcobinamide-GDP ribazoletransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008818; F:cobalamin 5'-phosphate synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009236; P:cobalamin biosynthetic process; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00719; CobS; 1.
DR   InterPro; IPR003805; CobS.
DR   PANTHER; PTHR34148; PTHR34148; 1.
DR   Pfam; PF02654; CobS; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Cobalamin biosynthesis; Magnesium; Membrane; Transferase;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..252
FT                   /note="Adenosylcobinamide-GDP ribazoletransferase"
FT                   /id="PRO_1000132563"
FT   TRANSMEM        4..24
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        38..58
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        60..80
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        113..133
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        141..161
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        190..210
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        232..252
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
SQ   SEQUENCE   252 AA;  28058 MW;  40E1783F7C4A36D3 CRC64;
     MKNLFKGLMM SLSMFTIIPM PYVEWDEDGA KNMMKCYPII GLIVGCVWFL GYKLINYLNI
     SIVLKSALIM IIPFIITGML HLDGFMDVCD AILSRRDKEE KLRILKDSTT GAFSVISVII
     LFFIQFGAVH SFLEYNKNPY ILMFLPIISR NIVAYFFITI ITIKESTLGS YFTKGTNIKD
     KVILILELAL VCILFGSILG YIGIAILLIV AVAISLCVKK CFKEFGGISG DVAGFSLVVG
     EIVGLFSACL FT