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4.1.1.22: histidine decarboxylase

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

Word Map on EC 4.1.1.22

Reaction

L-histidine
=
histamine
+
CO2

Synonyms

DCHS, Decarboxylase, histidine, HDC, HdcA, HisDCase, histamine-forming enzyme, L-Histidine decarboxylase, pyruvoyl-dependent decarboxylase, pyruvoyl-dependent histidine decarboxylase, TOM92

ECTree

     4 Lyases
         4.1 Carbon-carbon lyases
             4.1.1 Carboxy-lyases
                4.1.1.22 histidine decarboxylase

Temperature Stability

Temperature Stability on EC 4.1.1.22 - histidine decarboxylase

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TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
4 - 50
45
-
stable for at least 30 min, without pyridoxal 5'-phosphate
50
-
40% loss of activity after 30 min, 5fold increase of half-life in presence of saturating concentrations of pyridoxal 5'-phosphate
50 - 60
57
-
50% loss of activity in 4 min, 5fold increase of half-life in presence of saturating concentrations of pyridoxal 5'-phosphate
64
-
50% loss of activity in 30 s, 5fold increase of half-life in presence of saturating concentrations of pyridoxal 5'-phosphate
65
20 min, 20% residual activity
70
-
85% loss of activity after 20 min
75
2 min, inactivation
80
-
complete loss of activity after 20 min