>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=96.96 E-value=0.0018 Score=42.70 Aligned_cols=128 Identities=23% Similarity=0.407 Sum_probs=71.0 Q ss_pred CCCCEEEEECCCCHHHHHHHHHHHCCCCEEEEEECCCCCHHHHHHHHHHHCCCCCCCCEEEECCCHHHHCCCCEEEEECC Q ss_conf 99872899889813689999999579986999965788128988307620544688756852697488378978999556 Q gi|254781048|r 1 MKSNKIALIGSGMIGGTLAHLAVLKKLGDVVLLDIVDGMPRGKALDIAESSPVEGFGAQLCGTSDYSDIAEADVCIVTAG 80 (320) Q Consensus 1 mk~~KV~IIGaG~VG~~~a~~~~~~~l~ei~L~D~~~~~~~g~~~Dl~~~~~~~~~~~~v~~~~d~~~l~~aDivVitag 80 (320) T Consensus 19 L~~s~VlivG~GGlGs~~~~~La~~Gvg~i~lvD~D~v-------e~s------NLnRQ~l----~~~---~di-----G 73 (228) T cd00757 19 LKNARVLVVGAGGLGSPAAEYLAAAGVGKLGLVDDDVV-------ELS------NLQRQIL----HTE---ADV-----G 73 (228) T ss_pred HHCCCEEEECCCHHHHHHHHHHHHCCCCEEEEEECCCC-------CCC------CCHHHHE----ECH---HHC-----C T ss_conf 86497899887788999999999839975899978745-------567------6422102----378---668-----7 Q ss_pred CCCCCCCCHHHHHHHHHHHHHHHHHHHHHCCCCCCEEEECCCCHHHHHHHHH-HCCCCHHHHHHHCCCHHHHHHHHHHHH Q ss_conf 6667655746789988999999997654126674088714842078999988-449986561100052568999999999 Q gi|254781048|r 81 IPRKPSMSRDDLLADNLKAIEKVGAGIRKYAPNSFVICITNPLDAMVWALQK-FSGLPSHMVVGMAGILDSARFRYFLAQ 159 (320) Q Consensus 81 ~~~~~g~~R~dll~~N~~i~~~i~~~i~~~~p~~i~ivvtNPvDv~~~~~~~-~sg~~~~rViG~Gt~LDs~R~~~~ia~ 159 (320) T Consensus 74 ~------~K~----------~~a~~~l~~iNp~i~i~~~~~~i~~~~--~~~~~~~~D--lVid---~~Dn~~~R~~ln~ 130 (228) T cd00757 74 Q------PKA----------EAAAERLRAINPDVEIEAYNERLDAEN--AEELIAGYD--LVLD---CTDNFATRYLIND 130 (228) T ss_pred C------CHH----------HHHHHHHHHHCCCCCCEEHHHCCCHHH--HHHHHHCCC--EEEE---CCCCHHHHHHHHH T ss_conf 8------959----------999999985488753031321005756--998873798--9998---7799889999999 Q ss_pred ---HCCCCCCCCEEEEECCCCC Q ss_conf ---7198733550567507885 Q gi|254781048|r 160 ---EFGVSVESVTALVLGSHGD 178 (320) Q Consensus 160 ---~l~v~~~~V~~~ViGeHGd 178 (320) T Consensus 131 ~~~~~~iP--~i~g~~~g~~Gq 150 (228) T cd00757 131 ACVKLGKP--LVSGAVLGFEGQ 150 (228) T ss_pred HHHHCCCC--EEEEEECCCEEE T ss_conf 99983998--899974002868

HHsearch alignment for GI: 254781048 and conserved domain: cd00757