>cd03414 CbiX_SirB_C Sirohydrochlorin cobalt chelatase (CbiX) and sirohydrochlorin iron chelatase (SirB), C-terminal domain. SirB catalyzes the ferro-chelation of sirohydrochlorin to siroheme, the prosthetic group of sulfite and nitrite reductases. CbiX is a cobaltochelatase, responsible for the chelation of Co2+ into sirohydrochlorin, an important step in the vitamin B12 biosynthetic pathway. CbiX often contains a C-terminal histidine-rich region that may be important for metal delivery and/or storage, and may also contain an iron-sulfur center. Both CbiX and SirB are found in a wide range of bacteria.

Probab=97.86 E-value=0.00019 Score=51.61 Aligned_cols=92 Identities=22% Similarity=0.362 Sum_probs=64.5 Q ss_pred HHHHHHHHHCCCCCCCHHHHH-CCCCCHHHHHHHHHHCCCCEEEEEECCHHHHHHHHHHHHHHHHHHHHHHC--CCCCCC Q ss_conf 999998652247843001121-04542478999998709965899631711100146899999999998717--998642 Q gi|254780200|r 99 ATNLAKRLESISSIVVDWAMR-YGKPSVKEIINNLREEGCDRLLIFPLYPQYSAATTGTAQDKVFQELIHMR--WSPSLR 175 (343) Q Consensus 99 a~~L~~~L~~~~~~~V~~amr-y~~P~i~~~l~~l~~~g~~~ii~lPLyPqyS~sTtgS~~~~~~~~l~~~~--~~~~~~ 175 (343) T Consensus 23 a~~l~~~~~---~~~v~~~fle~~~P~l~e~l~~l~~~G~~~ivvvP~fL-~~----G~~~~~i~~~~~~~~~~p~~~i~ 94 (117) T cd03414 23 ARLLEEGTG---FARVETAFAAATRPSLPEALERLRALGARRVVVLPYLL-FT----GVLMDRIEEQVAELAAEPGIEFV 94 (117) T ss_pred HHHHHHHCC---CCEEEEEEECCCCCCHHHHHHHHHHCCCCEEEEEEHHH-CC----CCHHHHHHHHHHHHHHCCCCEEE T ss_conf 999997689---98188877536799899999999976997599976231-27----84276679999999848897189 Q ss_pred CCCCCCCCCHHHHHHHHHHHHHH Q ss_conf 13345578006899999999999 Q gi|254780200|r 176 TVPPYYEDSDYISALAQSIREHF 198 (343) Q Consensus 176 ~I~~~~~~p~yI~a~~~~I~~~l 198 (343) T Consensus 95 ~~~pLG~~p~l~~~l~~Ri~eal 117 (117) T cd03414 95 LAPPLGPHPELAEALLERVREAL 117 (117) T ss_pred ECCCCCCCHHHHHHHHHHHHHHC T ss_conf 88889899899999999999769

HHsearch alignment for GI: 254780200 and conserved domain: cd03414