>TIGR01651 CobT cobaltochelatase, CobT subunit; InterPro: IPR006538 These proteins are CobT subunits of the aerobic cobalt chelatase (aerobic cobalamin biosynthesis pathway). Pseudomonas denitrificans CobT has been experimentally characterised , . Aerobic cobalt chelatase consists of three subunits, CobT, CobN (IPR003672 from INTERPRO) and CobS (IPR006537 from INTERPRO). Cobalamin (vitamin B12) can be complexed with metal via the ATP-dependent reactions (aerobic pathway) (e.g., in Pseudomonas denitrificans) or via ATP-independent reactions (anaerobic pathway) (e.g., in Salmonella typhimurium) , . The corresponding cobalt chelatases are not homologous. However, aerobic cobalt chelatase subunits CobN and CobS are homologous to Mg-chelatase subunits BchH and BchI, respectively . CobT, too, has been found to be remotely related to the third subunit of Mg-chelatase, BchD (involved in bacteriochlorophyll synthesis, e.g., in Rhodobacter capsulatus) . Nomenclature note: CobT of the aerobic pathway Pseudomonas denitrificans is not a homolog of CobT of the anaerobic pathway (Salmonella typhimurium, Escherichia coli). Therefore, annotation of any members of this family as nicotinate-mononucleotide--5,6-dimethylbenzimidazole phosphoribosyltransferases is erroneous. .

Probab=96.37 E-value=0.0089 Score=35.11 Aligned_cols=140 Identities=18% Similarity=0.206 Sum_probs=71.9 Q ss_pred CEEEEECCCCCCCCCCCCCHHHHHHHH---HHHHHHCCCCCCCCCCCEEEEEEEEEECCCCEE--ECCCC---------- Q ss_conf 069985276311566787214898999---998750023355553110479878863674178--16665---------- Q gi|254780833|r 170 DMMMVLDVSLSMNDHFGPGMDKLGVAT---RSIREMLDIIKSIPDVNNVVRSGLVTFSSKIVQ--TFPLA---------- 234 (371) Q Consensus 170 di~~viD~SgSm~~~~~~~~~~~~~~~---~~~~~~~~~~~~~~~~~~~~~~~~~~f~~~~~~--~~~lt---------- 234 (371) T Consensus 400 VVTLliDNSGSMRGR------PI~VAA~CADILARTLERCGV~~Ei-----LGFTTrAWKGG~sR~~Wl~~GKP~aPGRL 468 (606) T TIGR01651 400 VVTLLIDNSGSMRGR------PITVAATCADILARTLERCGVKVEI-----LGFTTRAWKGGQSREKWLKAGKPAAPGRL 468 (606) T ss_pred EEEEEEECCCCCCCC------HHHHHHHHHHHHHHHHHHCCCEEEE-----CCCCCCCCCCCCCHHHHHHCCCCCCCCCC T ss_conf 788877467887881------4788988898987666417730675-----25401455788648999737787777842 Q ss_pred CCHHHHHHHH-HC----------CCCCCC---CCC-CCHHHHHHHHHHHHHHCCCCCCCCCCCCCEEEEEEECCCCCCCC Q ss_conf 5878999997-40----------156887---456-42378899998742110123467776661699998404588888 Q gi|254780833|r 235 WGVQHIQEKI-NR----------LIFGST---TKS-TPGLEYAYNKIFDAKEKLEHIAKGHDDYKKYIIFLTDGENSSPN 299 (371) Q Consensus 235 ~~~~~~~~~i-~~----------l~~~g~---T~~-~~~~~~~~~~l~~~~~~~~~~~~~~~~~~k~ivl~TDG~~~~~~ 299 (371) T Consensus 469 NDLRHIiYKsAD~PWRRARrNLGLMMREGLLKENIDGEAL~WAH~RliA-----------R~EQRrILM~ISDGAPVDDS 537 (606) T TIGR01651 469 NDLRHIIYKSADAPWRRARRNLGLMMREGLLKENIDGEALLWAHERLIA-----------RPEQRRILMMISDGAPVDDS 537 (606) T ss_pred CHHHHHHHHCCCCCHHHHHHHCCHHHHHCCHHCCCCHHHHHHHHHHHHC-----------CHHHCEEEEEEECCCCCCCC T ss_conf 0234575321687146777512325541200105646799988666414-----------72047587776278886645 Q ss_pred CCH--------HHHHHHHHHHH-HCCCEEEEEEECCCCCHH Q ss_conf 897--------89999999999-789879999941864279 Q gi|254780833|r 300 IDN--------KESLFYCNEAK-RRGAIVYAIGVQAEAADQ 331 (371) Q Consensus 300 ~~~--------~~~~~~c~~~k-~~gi~i~tIg~~~~~~~~ 331 (371) T Consensus 538 TLSVN~G~YLERHLR~VI~~IEtrSPVELlAIGIGHDVTRY 578 (606) T TIGR01651 538 TLSVNPGNYLERHLRAVIEEIETRSPVELLAIGIGHDVTRY 578 (606) T ss_pred CCCCCCCHHHHHHHHHHHHHHCCCCCCEEEEECCCCCCCCE T ss_conf 23547850678999999986237787000232344342200

HHsearch alignment for GI: 254780833 and conserved domain: TIGR01651