Human seminal phosphatase. Properties and comparison with plant phosphatases.
1. Phosphatase activities were determined in various seminal fluid and plant tissues. 2. Human semen showed a markedly higher phosphatase activity, and some plants and mushrooms exhibited a considerably higher phosphatase activity. 3. Phosphatase purified from human seminal fluid showed a pH optimum of 5-6 and was potently inhibited by L-(+)-tartrate. 4. Tartrate could not inhibit most plant phosphatases, but inhibited the mushroom phosphatase with a one-order lower affinity than that of the seminal enzyme.
Department of Legal Medicine, Nagoya University School of Medicine, Japan.
K
K
Fujisawa
Y
Y
Katsumata
M
M
Yoshino
D001487:Basidiomycota / Q000201:enzymology; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008297:Male; D010744:Phosphoric Monoester Hydrolases / Q000037:antagonists & inhibitors / Q000378:metabolism*; D010944:Plants / Q000201:enzymology*; D012661:Semen / Q000201:enzymology*; D013644:Tartrates / Q000494:pharmacology
D013644:Tartrates; D010744:Phosphoric Monoester Hydrolases