1.5.1.5: methylenetetrahydrofolate dehydrogenase (NADP+)

This is an abbreviated version!
For detailed information about methylenetetrahydrofolate dehydrogenase (NADP+), go to the full flat file.

Word Map on EC 1.5.1.5

Reaction

5,10-methylenetetrahydrofolate
+
NADP+
=
5,10-methenyltetrahydrofolate
+
NADPH
+
H+

Synonyms

5, 10-methylenetetrahydrofolate dehydrogenase, 5,10-CH2-THF dehydrogenase, 5,10-mehtylene tetrahydrofolate dehydrogenase, 5,10-methenyltetrahydrofolate cyclohydrolase/5,10-methylene tetrahydrofolate dehydrogenase, 5,10-methylenetetrahydrofolate dehydrogenase, 5,10-methylenetetrahydrofolate dehydrogenase/cyclohydrolase, ADE3, Cpe FolD, dehydrogenasse-cyclohydrolase-synthetase, DHCH, DHCH1, FolD, methylene tetrahydrofolate dehydrogenase/cyclohydrolase, methylenetetrahydrofolate dehydrogenase, methylenetetrahydrofolate dehydrogenase-methenyltetrahydrofolate cyclohydrolase-formyltetrahydrofolate synthetase, MIS1, mitochondrial methylenetetrahydrofolate dehydrogenase, MTHFD1, MTHFD1 protein, MTHFD2, MTHFD2 protein, MTHFD2L, MTHFDC, N5,N10-methylenetetrahydrofolate dehydrogenase, N5,N10-methylenetetrahydrofolate dehydrogenase/cyclohydrolase, NAD-dependent methylenetetrahydrofolate dehydrogenase-cyclohydrolase, NADP-dependent 5,10-methylene-THF dehydrogenase

ECTree

     1 Oxidoreductases
         1.5 Acting on the CH-NH group of donors
             1.5.1 With NAD+ or NADP+ as acceptor
                1.5.1.5 methylenetetrahydrofolate dehydrogenase (NADP+)

General Stability

General Stability on EC 1.5.1.5 - methylenetetrahydrofolate dehydrogenase (NADP+)

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GENERAL STABILITY
ORGANISM
UNIPROT
LITERATURE
extremely labile, during purification protection by NADP+
-
freezing inactivates
-
frozen stable for 12 days, loss of activity upon repeated freezing and thawing
-
highly instable, partial protection against inactivation by thiol compounds, glycerol, serum albumin and EDTA, freezing inactivates purified enzyme
-
highly unstable, can be preserved as suspension in ammonium sulfate at 50% saturation
-
protected by NADP+
-
relatively instable after partial purification
-
relatively labile, stabilized with phosphate, glycerol and NADP+
-
stable for 1 week, stored in 20% glycerol, 0.1 M potassium phosphate, pH 7.3
-
upon daily freezing and thawing activity loss of 30% in 2 weeks
-