>cd00757 ThiF_MoeB_HesA_family ThiF_MoeB_HesA. Family of E1-like enzymes involved in molybdopterin and thiamine biosynthesis family. The common reaction mechanism catalyzed by MoeB and ThiF, like other E1 enzymes, begins with a nucleophilic attack of the C-terminal carboxylate of MoaD and ThiS, respectively, on the alpha-phosphate of an ATP molecule bound at the active site of the activating enzymes, leading to the formation of a high-energy acyladenylate intermediate and subsequently to the formation of a thiocarboxylate at the C termini of MoaD and ThiS. MoeB, as the MPT synthase (MoaE/MoaD complex) sulfurase, is involved in the biosynthesis of the molybdenum cofactor, a derivative of the tricyclic pterin, molybdopterin (MPT). ThiF catalyzes the adenylation of ThiS, as part of the biosynthesis pathway of thiamin pyrophosphate (vitamin B1).

Probab=93.82  E-value=0.17  Score=27.62  Aligned_cols=31  Identities=19%  Similarity=0.323  Sum_probs=22.7

Q ss_pred             CEEEEECCCCHHHHHHHHHHHC-CC-EEEEECHH
Q ss_conf             9499997889788999999964-98-59996136
Q gi|254780921|r    1 MKCLVIGNNGQIAQSLSSMCVQ-DV-EIIRVGRP   32 (290)
Q Consensus         1 MkiLVtG~~G~iG~~l~~~l~~-~~-~v~~~~r~   32 (290)
T Consensus        22 s~VlivG~-GGlGs~~~~~La~~Gvg~i~lvD~D   54 (228)
T cd00757          22 ARVLVVGA-GGLGSPAAEYLAAAGVGKLGLVDDD   54 (228)
T ss_pred             CCEEEECC-CHHHHHHHHHHHHCCCCEEEEEECC
T ss_conf             97899887-7889999999998399758999787