A simple spectrophotometric assay for arogenate dehydratase

Area of Science:

• Biochemistry
• Enzymology

Background:

• Arogenate dehydratase catalyzes L-phenylalanine formation from L-arogenate.
• Efficient enzyme assays are crucial for biochemical research.

Purpose of the Study:

• To present a simple spectrophotometric assay for arogenate dehydratase.
• To enable high-throughput screening of enzyme activity.

Main Methods:

• Coupling arogenate dehydratase with aromatic aminotransferase from Acinetobacter calcoaceticus.
• Measuring phenylpyruvate formation spectrophotometrically at 320 nm at basic pH in the presence of 2-ketoglutarate.

Main Results:

• The new assay is simple, quick, and fairly sensitive.
• It is suitable for screening a large number of samples.
• Performance was comparable to existing methods.

Conclusions:

• A novel, efficient spectrophotometric assay for arogenate dehydratase has been established.
• This method facilitates large-scale screening of enzyme activity.