A HISTOCHEMICAL METHOD FOR THE DEMONSTRATION OF AMINOPEPTIDASE B ACTIVITY
1 Institute of Dentistry, University of Turku, SF-20520 Turku 52, Finland
A histochemical method for the demonstration of aminopeptidase B activity is presented. The method is based on the specific activation of the enzyme by chloride ions present in physiologic concentrations (0.9% or 0.154 M) in the incubating medium, on the inhibition by phosphate ions and on the use of N-l-arginyl-2-naphthylamine as substrate. The liberated 2-naphthylamine was coupled with fast blue B. Submitted on June 28, 1971
|
|
||||||||||||