ID   COBS_METAR              Reviewed;         268 AA.
AC   Q0W1P5;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   05-SEP-2006, sequence version 1.
DT   25-MAY-2022, entry version 84.
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=UNCMA_05580;
GN   ORFNames=RCIX2652;
OS   Methanocella arvoryzae (strain DSM 22066 / NBRC 105507 / MRE50).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC   Methanocellales; Methanocellaceae; Methanocella.
OX   NCBI_TaxID=351160;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 22066 / NBRC 105507 / MRE50;
RX   PubMed=16857943; DOI=10.1126/science.1127062;
RA   Erkel C., Kube M., Reinhardt R., Liesack W.;
RT   "Genome of rice cluster I archaea -- the key methane producers in the rice
RT   rhizosphere.";
RL   Science 313:370-372(2006).
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; AM114193; CAJ37698.1; -; Genomic_DNA.
DR   RefSeq; WP_012034887.1; NC_009464.1.
DR   AlphaFoldDB; Q0W1P5; -.
DR   STRING; 351160.RCIX2652; -.
DR   EnsemblBacteria; CAJ37698; CAJ37698; RCIX2652.
DR   GeneID; 5143777; -.
DR   KEGG; rci:RCIX2652; -.
DR   PATRIC; fig|351160.9.peg.584; -.
DR   eggNOG; arCOG04338; Archaea.
DR   OMA; FMDSMDG; -.
DR   OrthoDB; 108934at2157; -.
DR   UniPathway; UPA00148; UER00238.
DR   Proteomes; UP000000663; Chromosome.
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.
DR   TIGRFAMs; TIGR00317; cobS; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Cobalamin biosynthesis; Magnesium; Membrane;
KW   Reference proteome; Transferase; Transmembrane; Transmembrane helix.
FT   CHAIN           1..268
FT                   /note="Adenosylcobinamide-GDP ribazoletransferase"
FT                   /id="PRO_1000132614"
FT   TRANSMEM        1..21
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        36..56
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        59..79
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        112..132
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        138..158
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        182..202
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        212..232
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
FT   TRANSMEM        244..264
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00719"
SQ   SEQUENCE   268 AA;  27865 MW;  B73248C96F6A5F6D CRC64;
     MAGNLLNGLR AAIAFLTTLP VRIVDGDYDA FADRQYLFIP VAIVTGLLLG VAGTLFQCIL
     PAPFAAVLTV ACIFLLTGIN HLDGLSDFGD GLIASGPREK KVRAMKDVHA GAGGLLFMAM
     DLLFLFALAM TFAGSPTWLF VPLLVAEGCA KVAQITIIAF GKSAHEGMGS YMIARMKKEH
     YLAAVIGAWI AIGIAIIGAA IIPGGGNPLR VIMAGGLAML SPLAVALIIL IISDRNFGGV
     NGDVIGAANE IARIAALGVM GAVLWMRF