>cd03376 TPP_PFOR_porB_like Thiamine pyrophosphate (TPP family), PFOR porB-like subfamily, TPP-binding module; composed of proteins similar to the beta subunit (porB) of the Helicobacter pylori four-subunit pyruvate ferredoxin oxidoreductase (PFOR), which are also found in archaea and some hyperthermophilic bacteria. PFOR catalyzes the oxidative decarboxylation of pyruvate to form acetyl-CoA, a crucial step in many metabolic pathways. Archaea, anaerobic bacteria and eukaryotes that lack mitochondria (and therefore pyruvate dehydrogenase) use PFOR to oxidatively decarboxylate pyruvate, with ferredoxin or flavodoxin as the electron acceptor. The 36-kDa porB subunit contains the binding sites for the cofactors, TPP and a divalent metal cation, which are required for activity.

Probab=98.73 E-value=2.5e-08 Score=73.57 Aligned_cols=154 Identities=18% Similarity=0.167 Sum_probs=107.6 Q ss_pred HHCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC--CCCCCCCCCCCCCC-CCHHHHHHHHHHH Q ss_conf 21012344345567732111221236766746676743254310011233--44443310256654-3024567654432 Q gi|255764490|r 129 LTGRQGGISKGKGGSMHMFSTKNGFYGGHGIVGAQVSLGTGIAFANKYRR--SDKICVVCFGDGAA-NQGQVYESFNIAA 205 (364) Q Consensus 129 ~~gk~~g~~~Gr~gs~H~~~~~~~~~~~~~~vg~~~p~A~G~A~a~k~~~--~~~v~v~~~GDGa~-~eG~f~Ealn~A~ 205 (364) T Consensus 29 vi~~~iGCs~~~~~~~p~~~--~~~~~ih~~hgra~a~AtGik~a~~~l~~~~~~~Vv~~~GDG~~~dIG~-~-~l~haa 104 (235) T cd03376 29 VVVNPTGCLEVITTPYPYTA--WRVPWIHVAFENAAAVASGIEAALKALGRGKDITVVAFAGDGGTADIGF-Q-ALSGAA 104 (235) T ss_pred EEEECCCCCCCCCCCCCCCC--CCCCCCCHHHCCHHHHHHHHHHHHHHHHCCCCCEEEEEECCCHHHHHHH-H-HHHHHH T ss_conf 99979864865487787776--4176054000146776661999999861389963999964744754207-8-899999 Q ss_pred HCCCHHHHHHHCCC-CCC-------CCCCCCCC--------------CCCCHHHHHHHHHHHHH-HHHCCHHHHHHHHHH Q ss_conf 11401110221034-344-------44432321--------------48643577777631111-210000233688754 Q gi|255764490|r 206 LWNLNVIYVIENNQ-YAM-------GTSVSRAS--------------AQTNFSKRGVSFNIPGM-QVDGMDIRAVKATMD 262 (364) Q Consensus 206 ~~~lPvifvvenN~-~ai-------st~~~~~~--------------~~~~i~~ra~~~gi~~~-~vDG~D~~~v~~~~~ 262 (364) T Consensus 105 ~Rn~~i~~iv~dN~~YgnTGGQ~S~tTp~G~~t~tsp~G~~~~g~~~~~kd~~~i~~a~g~~yVA~~~~~~~~~~~k~i~ 184 (235) T cd03376 105 ERGHDILYICYDNEAYMNTGIQRSGSTPYGAWTTTTPVGKVSFGKKQPKKDLPLIMAAHNIPYVATASVAYPEDLYKKVK 184 (235) T ss_pred HCCCCEEEEEECCHHHCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHCCCCEEEEECCCCHHHHHHHHH T ss_conf 82998399998882100368966989989863112688855778777886999999870995899974589999999999 Q ss_pred HHCCCCCCCCCCEEEEECCCCCCCCCCC Q ss_conf 2102455454655898315668876667 Q gi|255764490|r 263 KAVAYCRAHKGPIIIEMLTYRYRGHSMS 290 (364) Q Consensus 263 ~a~~~~r~~~gP~lie~~tyR~~gHs~~ 290 (364) T Consensus 185 ~A~~~----~G~s~i~v~spCpt~w~~~ 208 (235) T cd03376 185 KALSI----EGPAYIHILSPCPTGWRFD 208 (235) T ss_pred HHHCC----CCCEEEEEECCCCCCCCCC T ss_conf 99728----9988999964796667959

HHsearch alignment for GI: 255764490 and conserved domain: cd03376