Abstract
Basic human urinary arginine esterase (BHUAE) and basic human seminal plasma arginine esterase (BHSAE) were separated from the male urine and seminal plasma, respectively. The percentage of the content level of BHUAE was calculated to be about 1 to 3% of the total N-α-tosyl-L-arginine methyl ester (Tos-Arg-Me) esterolytic activity in the male urine. The esterolytic activities of BHUAE and BHSAE towards synthetic amino acid ester derivatives were measured and substrate specificity of both enzymes was not agreed.