>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=93.55  E-value=0.31  Score=27.59  Aligned_cols=41  Identities=20%  Similarity=0.370  Sum_probs=36.0

Q ss_pred             CCCHHHCEEEEECCCHHHHHHHHHHHHCCCCCCCEEEEECCCE
Q ss_conf             9882241178742542567899999981988575899955960
Q gi|254780137|r  197 GKKFSDIKIVTLGAGAAALACLNLLVTMGVRRENIWVYDLEGL  239 (779)
Q Consensus       197 gk~l~~~~iv~~GaGaAg~~~a~ll~~~g~~~~~i~~~D~~Gl  239 (779)
T Consensus        16 Q~~L~~s~VlivG~GGlGs~~~~~La~~Gvg--~i~lvD~D~v   56 (228)
T cd00757          16 QEKLKNARVLVVGAGGLGSPAAEYLAAAGVG--KLGLVDDDVV   56 (228)
T ss_pred             HHHHHCCCEEEECCCHHHHHHHHHHHHCCCC--EEEEEECCCC
T ss_conf             9998649789988778899999999983997--5899978745