Non disponible en dehors du Royaume-Uni et de l'Irlande

Application

L-Tyrosine decarboxylase apoenzyme from Streptococcus faecalis has been used:in a study to purify and characterize tyrosine decarboxylase and aromatic-L-amino-acid decarboxylasein a study to investigate the stereospecificity of sodium borohydride reduction of tyrosine decarboxylasein protein synthesis studies

Biochem/physiol Actions

L-Tyrosine Decarboxylase Apoenzyme is an aromatic L-amino acid decarboxylase. The enzyme activity of tyrosine decarboxylase (TDC) is dependent on the cofactor pyridoxal 5-phosphate (PLP). It catalyzes the decarboxylation of dihydroxyphenylalanine.

Other Notes

Dried cells grown on vitamin B₆-deficient medium.

Packaging

25, 50 units in glass bottle

250 units in poly bottle

Unit Definition

One unit will liberate 1.0 µmole of CO₂ from L-tyrosine per min at pH 5.5 at 37 °C.