>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=92.53  E-value=0.26  Score=28.37  Aligned_cols=38  Identities=18%  Similarity=0.231  Sum_probs=32.9

Q ss_pred             HCCCCEEEEECCCCCCHHHHHHHHHHHHCCCEEEEEECCH
Q ss_conf             2299789994889884179999999998898899984898
Q gi|254781166|r    7 LMKDKRGIVLGVANNRSLAWSIAKMCHAAGAKVALTWQGD   46 (284)
Q Consensus         7 ~L~~K~~iVtGa~g~~GIG~aiA~~la~~Ga~Vvi~~~~~   46 (284)
T Consensus        41 ~l~Gk~vvViGrS~--iVG~Pla~lL~~~~atVt~chs~T   78 (168)
T cd01080          41 DLAGKKVVVVGRSN--IVGKPLAALLLNRNATVTVCHSKT   78 (168)
T ss_pred             CCCCCEEEEECCCC--CCHHHHHHHHHHCCCEEEEECCCC
T ss_conf             87785699987873--008999999984899799976898