>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=90.08  E-value=1.5  Score=23.18  Aligned_cols=36  Identities=28%  Similarity=0.385  Sum_probs=30.9

Q ss_pred             CCCCCEEEEECCCCCCCHHHHHHHHHHHCCC-EEEEEECC
Q ss_conf             5688789993889885258999999998998-89999489
Q gi|254780462|r    4 ILKGKRGLIMGVANDHSIAWGIAKVLHSAGA-QLAFSYQG   42 (267)
Q Consensus         4 ~L~gK~~lItGas~~~GIG~aia~~l~~~Ga-~V~i~~~~   42 (267)
T Consensus        18 ~L~~s~VlivG~G---GlGs~~~~~La~~Gvg~i~lvD~D   54 (228)
T cd00757          18 KLKNARVLVVGAG---GLGSPAAEYLAAAGVGKLGLVDDD   54 (228)
T ss_pred             HHHCCCEEEECCC---HHHHHHHHHHHHCCCCEEEEEECC
T ss_conf             9864978998877---889999999998399758999787