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4.2.1.96: 4a-hydroxytetrahydrobiopterin dehydratase

This is an abbreviated version!
For detailed information about 4a-hydroxytetrahydrobiopterin dehydratase, go to the full flat file.

Word Map on EC 4.2.1.96

Reaction

4a-hydroxytetrahydrobiopterin
=
6,7-dihydrobiopterin
+
H2O

Synonyms

4 alpha-Hydroxy-tetrahydropterin dehydratase, 4-alpha-hydroxy-tetrahydropterin dehydratase, 4-alpha-hydroxytetrahydrobiopterin dehydratase, 4a-Carbinolamine dehydratase, 4a-Hydroxytetrahydrobiopterin dehydratase, 4a-Hydroxytetrahydropterin dehydratase, carbinolamine-4a-dehydratase, cDcoH, DCoH, DCoH/PCD, DcoH2, DCoHalpha, Dehydratase, 4a-carbinolamine, Dimerization cofactor of hepatocyte nuclear factor 1-alpha, Dimerization cofactor of HNF1, Dimerization factor of HNF1/pterin-4alpha-carbinolamine dehydratase, GenBank AE000671-derived protein GI 2982796, More, P4aCD, PCD, PCD/DCoH, PCD/PhhB, PCDH, Phenylalanine hydroxylase-stimulating protein, Phenylalanine hydroxylase-stimulating protein/pterin-4alpha-carbinolamine dehydratase, PhhB, PHS, PHS/PCD, pterin 4a-carbinolamine dehydratase, Pterin carbinolamine dehydratase, Pterin-4 alpha-carbinolamine dehydratase, Pterin-4-alpha-carbinolamine dehydratase, Pterin-4a-carbinolamine dehydratase, Pterin-4a-carbinolamine dehydratase (Aquifex aeolicus gene phhB), Pterin-4a-carbinolamine dehydratase/dimerization cofactor of HNF1, Pterin-4alpha-carbinolamine dehydratase, Pterin-4alpha-carbinolamine dehydratase (PCD)/dimerization cofactor for the transcription factor HBF-1alpha, XDCoH

ECTree

     4 Lyases
         4.2 Carbon-oxygen lyases
             4.2.1 Hydro-lyases
                4.2.1.96 4a-hydroxytetrahydrobiopterin dehydratase

Purification

Purification on EC 4.2.1.96 - 4a-hydroxytetrahydrobiopterin dehydratase

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PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
by affinity chromatography over a HisTrap nickel chelating column, followed by TEV cleavage/dialysis at 4°C overnight and then further passage over the a HisTrap nickel column to remove the tag, contaminants and the His-tagged TEV protease. A final purification step using a Superdex 75 size-exclusion column is performed
DcoH2 (dimerization cofactor of HNF1alpha)
recombinant
-
recombinant enzyme
-
recombinant GST-tagged enzyme from Escherichia coli by glutathione affinity chromatography, tag cleavage by thrombin, and p-aminobenzamidine affinity chromatography
-
wild type and mutant enzymes Cys81Ser and Cys81Arg
-
wild type and mutant enzymes E69A, D100N, H73A, H74A, H91A, W81A, and G72S and double-mutant H73A,H74A expressed in Escherichia coli
-