>TIGR02442 Cob-chelat-sub cobaltochelatase subunit; InterPro: IPR012804 Cobalamin (vitamin B12) can be complexed with metal via 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. Cobaltochelatase is responsible for the insertion of cobalt into the corrin ring of coenzyme B12 during its biosynthesis. Two versions have been well described. CbiK/CbiX is a monomeric, anaerobic version which acts early in the biosynthesis (IPR010388 from INTERPRO). CobNST is a trimeric, ATP-dependent, aerobic version which acts late in the biosynthesis, (IPR011953 from INTERPRO, IPR006537 from INTERPRO, IPR006538 from INTERPRO) . The two pathways differ in the point of cobalt insertion during corrin ring formation . There are apparently a number of variations on these two pathways, where the major differences seem to be concerned with the process of ring contraction . Cobaltochelatase shows similarities with magnesium chelatase, which is also a complex ATP-dependent enzyme made up of two separable components. However, unlike the situation in cobaltochelatase, one of these two components is membrane bound in magnesium chelatase . .

Probab=98.78 E-value=1e-08 Score=81.21 Aligned_cols=239 Identities=15% Similarity=0.155 Sum_probs=133.9 Q ss_pred CCCCCCCCCCCCCCCCCCCCCCCCCEEEEEECCCCCHHHHHHHHHHHCCCC----CCCCCC---------CCCC------ Q ss_conf 111122222222222222223443204887327774367999999842675----433210---------1234------ Q gi|254780916|r 139 LDSLIAVSPAMIQVVDLARKAGDCAIPIMIQGEFGVGKKRLSRFIHESGKR----AFFPFF---------IVNC------ 199 (482) Q Consensus 139 ~~~LiG~S~~m~~v~~~i~~~a~~~~~vli~Ge~GtGK~~~A~~iH~~s~r----~~~~fi---------~v~c------ 199 (482) T Consensus 3 F~AiVGQe~LK~AL--LL~Av~P~iGGVLirG~KGTAKSTaaR~L~~LLP~i~~v~gC~f~cdP~~P~~~C~~C~~~~~~ 80 (688) T TIGR02442 3 FTAIVGQEDLKLAL--LLNAVNPRIGGVLIRGEKGTAKSTAARGLAALLPDIDVVAGCPFSCDPDDPEEWCEECRRKLEE 80 (688) T ss_pred CCCCCCHHHHHHHH--HHEEECCCCCEEEEECCCCCHHHHHHHHHHHHCCHHHHHCCCCCCCCCCCCCCCCHHHHHHHHC T ss_conf 74221427986532--1002526637078877888627898884876160236640478887778870400676755520 Q ss_pred -------------CCCCCCCCHHHHHCCCC---CC-CCCCCCCCCCCCCCCCCEEEECCCCHHHHHHHHHHHHHHHHH-- Q ss_conf -------------65542100243311255---55-322111001234466714751664200188999888877642-- Q gi|254780916|r 200 -------------GMIDQDKIEKFLFGDVD---LQ-TKNSAQFLGKFIEANGGTIVLEEPDALPLAVQGRIYNFIETG-- 260 (482) Q Consensus 200 -------------~~~~~~~~e~~lFG~~~---~~-~~~~~~~~g~~~~a~~Gtl~l~ei~~L~~~~Q~~Ll~~l~~~-- 260 (482) T Consensus 81 ~G~~~~~~~~~~~V~LPlgATEDRVvG~LDi~~al~~G~~~FqPGLLA~AhrGiLYiDEVNLLdDhlVD~lLDaaA~G~n 160 (688) T TIGR02442 81 QGTLPSEQRPVPFVNLPLGATEDRVVGSLDIERALKEGEKAFQPGLLAEAHRGILYIDEVNLLDDHLVDVLLDAAAMGVN 160 (688) T ss_pred CCCCCCCCCCCEEEECCCCCCHHHHCCHHHHHHHHHHCHHHHCCCCHHHHCCCEEEEEEECCCCCHHHHHHHHHHHCCCE T ss_conf 47753135873588658775233221305489998718566078861754687167852001441477899998764800 Q ss_pred HCCCCCCCCCCCCCCEEEEECCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHH---HH------HHHHHHHHHHHHHHHC Q ss_conf 00112355321234315652143321111112333799988654334467787---74------4222255667776410 Q gi|254780916|r 261 KIEFFDSRGAIRLDVRLIFLTEKNLLPQVKSHVFRKDLYYRISVFLINISTLR---SR------SEDIPWLVHFFLQSFC 331 (482) Q Consensus 261 ~~~~~g~~~~~~~~~RiIa~t~~~L~~~~~~g~fr~dLy~rL~~~~i~iPpLR---eR------~eDI~~L~~~fl~~~~ 331 (482) T Consensus 161 ~VEREG~S~~Hpa--rf~L~GTMNPE----EG~LRPQLLDRFGL~-V~v~~~~d~~~R~Ev~~Rrl~~d~dP~~F~~~~~ 233 (688) T TIGR02442 161 RVEREGLSVSHPA--RFVLIGTMNPE----EGDLRPQLLDRFGLC-VDVAASRDPEERVEVIRRRLAFDADPEAFAARWA 233 (688) T ss_pred EEEECCCCHHCHH--HHHHHCCCCCC----HHHHCHHHHHHHHCE-EEECCCCCHHHHHHHHHHHHHHCCCCHHHHHHHH T ss_conf 6763574300114--55322037852----211022324244011-5502435866899999999754026778899999 Q ss_pred CCC------------CCCCCCCCCCCCCCCCCCCCCCCHHHHHHHH------HHHHHHCCCCCCCHHHHHHHH Q ss_conf 112------------2333321111100012233898689999999------999874389810688954542 Q gi|254780916|r 332 TKN------------AIKQISISDKALSLLTKYPWIDNVQELKNIL------LRAVIGLKDSHLTEDRFVLLL 386 (482) Q Consensus 332 ~~~------------~~~~~~ls~~a~~~L~~y~WPGNvREL~n~i------~r~~i~~~~~~i~~~~~~~~l 386 (482) T Consensus 234 ~~~~~L~~~I~~AR~lLp~V~l~d~~~~~I~~lc~~~~V~GhRAdi~~~raArAlAAl~GR~~V~~eDv~~Aa 306 (688) T TIGR02442 234 AEQEELRERIAAARSLLPSVRLSDSLLRFISELCIEFGVDGHRADIVMARAARALAALDGRRRVTAEDVREAA 306 (688) T ss_pred HHHHHHHHHHHHHHHHCCCCCCCHHHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHHHHCCCCEECHHHHHHHH T ss_conf 9999999999999975477658889999999999972888525999999999999877288535377899999

HHsearch alignment for GI: 254780916 and conserved domain: TIGR02442