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3.5.4.27: methenyltetrahydromethanopterin cyclohydrolase

This is an abbreviated version!
For detailed information about methenyltetrahydromethanopterin cyclohydrolase, go to the full flat file.

Word Map on EC 3.5.4.27

Reaction

5,10-methenyl-5,6,7,8-tetrahydromethanopterin
+
H2O
=
5-formyl-5,6,7,8-tetrahydromethanopterin

Synonyms

5,10-methenyltetrahydromethanopterin cyclohydrolase, CBH37751, cyclohydrolase, hydrolase, methenyltetrahydromethanopterin cyclo-, Mch, methenyl-H4MPT cyclohydrolase, methenyl-H4MPT+ cyclohydrolase, methenyltetrahydromethanopterin cyclohydrolase, N5,N10-methenyltetrahydromethanopterin cyclohydrolase

ECTree

     3 Hydrolases
         3.5 Acting on carbon-nitrogen bonds, other than peptide bonds
             3.5.4 In cyclic amidines
                3.5.4.27 methenyltetrahydromethanopterin cyclohydrolase

Metals Ions

Metals Ions on EC 3.5.4.27 - methenyltetrahydromethanopterin cyclohydrolase

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METALS and IONS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
(NH4)2SO4
-
1.5 M, stimulates
ammonium sulfate
-
1.5 M, maximal 100fold stimulation
K+
activity in cell extract is dependent on the presence of high concentrations of potassium phosphate. The activity in 1.0 M potassium phosphate buffer pH 7.6 is eightfold higher than that in 0.12 M potassium phosphate buffer pH 7.6
K2HPO4
K2SO4
Na2HPO4
-
maximal activation by 1.5 M K2HPO4, 1 M Na2HPO4 or 1 M Na2SO4
Na2SO4
NH4Cl
-
optimal concentration is 0.3 M
Sodium phosphate
-
1 M, 200fold stimulation
additional information