>cd01080 NAD_bind_m-THF_DH_Cyclohyd NADP binding domain of methylene-tetrahydrofolate dehydrogenase/cyclohydrolase. NADP binding domain of the Methylene-Tetrahydrofolate Dehydrogenase/cyclohydrolase (m-THF DH/cyclohydrolase) bifunctional enzyme. Tetrahydrofolate is a versatile carrier of activated one-carbon units. The major one-carbon folate donors are N-5 methyltetrahydrofolate, N5,N10-m-THF, and N10-formayltetrahydrofolate. The oxidation of metabolic intermediate m-THF to m-THF requires the enzyme m-THF DH. In addition, most DHs also have an associated cyclohydrolase activity which catalyzes its hydrolysis to N10-formyltetrahydrofolate. m-THF DH is typically found as part of a multifunctional protein in eukaryotes. NADP-dependent m-THF DH in mammals, birds and yeast are components of a trifunctional enzyme with DH, cyclohydrolase, and synthetase activities. Certain eukaryotic cells also contain homodimeric bifunctional DH/cyclodrolase form. In bacteria, monofucntional DH, as well a

Probab=94.43 E-value=0.4 Score=26.75 Aligned_cols=92 Identities=20% Similarity=0.246 Sum_probs=70.4 Q ss_pred CCHHHHHHHHHHHHHHHHCCCHHHCEEEEECCCH-HHHHHHHHHHHCCCCCCCEEEEECCCEEECCCCCCCCHHHHHHHH Q ss_conf 2189999999999999709882241178742542-567899999981988575899955960307873326678897745 Q gi|254780137|r 179 HGTAVTVTAATLNGMKLVGKKFSDIKIVTLGAGA-AALACLNLLVTMGVRRENIWVYDLEGLVYEGREKKFDKWKSVYAQ 257 (779) Q Consensus 179 qGTa~v~lA~llnAl~~~gk~l~~~~iv~~GaGa-Ag~~~a~ll~~~g~~~~~i~~~D~~Gli~~~r~~~~~~~~~~~a~ 257 (779) T Consensus 21 ~~~~PcTp~ai~~ll~~~~i~l~Gk~vvViGrS~iVG~Pla~lL~~~~a---tVt~chs~T------------------- 78 (168) T cd01080 21 PGFIPCTPAGILELLKRYGIDLAGKKVVVVGRSNIVGKPLAALLLNRNA---TVTVCHSKT------------------- 78 (168) T ss_pred CCCCCCCHHHHHHHHHHHCCCCCCCEEEEECCCCCCHHHHHHHHHHCCC---EEEEECCCC------------------- T ss_conf 9886984999999999949887785699987873008999999984899---799976898------------------- Q ss_pred CCCCCCHHHHCCCCCEEEECCC-CCCCCHHHHHHCCCCCEEEE Q ss_conf 0889888886058837862578-87789889972189977999 Q gi|254780137|r 258 KSGPKPLSETMNNADVFLGLSV-AGALDPAILKFMAEKPLIMV 299 (779) Q Consensus 258 ~~~~~~l~ea~~~adv~iG~S~-~g~~t~e~v~~M~~~PiIfa 299 (779) T Consensus 79 ----~~l~~~~~~ADIvIsA~G~~~li~~~~vk---~gavvID 114 (168) T cd01080 79 ----KNLKEHTKQADIVIVAVGKPGLVKGDMVK---PGAVVID 114 (168) T ss_pred ----CCHHHHHHHCCEEEEECCCCCCCCHHHCC---CCCEEEE T ss_conf ----89799741045355415876637899958---9988996

HHsearch alignment for GI: 254780137 and conserved domain: cd01080