Alanine Aminotransferase (ALT/GPT) Activity Colorimetric Assay Kit

The kit provides a simple method for detecting ALT/GPT activity in a variety of biological samples such as animal tissues, plant tissues, cell culture: adherent or suspension cells, serum, bacterial. In the assay, ALT catalyzes the transamination reaction of α-ketoglutarate and alanine at 37°C and pH7.4 to produce glutamic acid and pyruvate; pyruvate can react with 2,4-dinitrophenylhydrazine to form Pyruvate phenylhydrazone, which appears brownish red under alkaline conditions and has a characteristic absorption peak at 505 nm. The rate of pyruvate phenylhydrazone increase at 505 nm can reflect ALT/GPT activity.