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Histamine Dehydrogenase from E. coli, Recombinant

Cat No.
DIA-412
Description
Histamine dehydrogenase is a homodimeric enzyme and catalyzes oxidative deamination of histamine. The gene encoding this enzyme has been sequenced and cloned by polymerase chain reactions and overexpressed in Escherichia coli.
Abbr
Histamine Dehydrogenase, Recombinant (E. coli)
Source
E. coli
Species
E. coli
Appearance
Brownish lyophilizate
Enzyme Commission Number
EC 1.4.99
Activity
> 1 U/mg lyophilizate
Molecular Weight
ca. 150 kDa
pH Stability
5.5–10.5
Michaelis Constant
1.0 x 10^-5 M (histamine)
Structure
2 subunits of ca. 71 kDa (SDS-PAGE)
Specificity
histamine (100), agmatine (7), putrescine (0), cadaverine (0)
Unit Definition
One unit (U) is defined as the amount of enzyme which produces 1 μmol of 4-imidazolylacetoaldehyde per min at 37°C and pH 9.0.
Optimum pH
9.0–9.5
Optimum temperature
70°C
Thermal stability
below 65°C
Stability
Stability (liquid form) stable at 37°C for at least four weeks Stability (powder form) stable at 50°C for at least two weeks
Storage
at -20°C
Stabilizers
Trehalose
Synonyms
Histamine : (acceptor) oxidoreductase (deaminating); EC 1.4.99; Histamine Dehydrogenase
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