title: Adenosine metabolizing enzymes in seminal plasma of bull and man: a comparative study.
abstract: 1. Adenosine metabolizing enzymes in seminal plasma of man and bull have been investigated. 2. A different level of 5'-nucleotidase activity has been found in two seminal plasmas: in bull 5'-nucleotidase represents 80% of the total AMP dephosphorylating enzymes while in man 5'-nucleotidase represents only 1.3% of the total AMP dephosphorylating activities. 3. Apart from the different levels of 5'-nucleotidase activity, different kinetic parameters have been reported for 5'-nucleotidase, acid prostatic phosphatases, ADA and PNP. 4. Adenosine kinase, xanthine oxidase and AdoHcy-hydrolase have not been detected in the seminal plasma of man and bull.
authors: Department of Experimental Medicine and Biochemistry, Università di Perugia, Italy.
authors: A
authors: A
authors: Minelli
authors: R
authors: R
authors: Fabiani
authors: M
authors: M
authors: Moroni
authors: I
authors: I
authors: Mezzasoma
mesh_terms: D015720:5'-Nucleotidase / Q000378:metabolism; D000135:Acid Phosphatase / Q000378:metabolism; D000241:Adenosine / Q000378:metabolism*; D000243:Adenosine Deaminase / Q000378:metabolism; D000249:Adenosine Monophosphate / Q000378:metabolism; D000818:Animals; D002417:Cattle; D006801:Humans; D007700:Kinetics; D008297:Male; D011467:Prostate / Q000201:enzymology; D011683:Purine-Nucleoside Phosphorylase / Q000378:metabolism; D012661:Semen / Q000201:enzymology*; D013045:Species Specificity
chemical_list: D000249:Adenosine Monophosphate; D011683:Purine-Nucleoside Phosphorylase; D000135:Acid Phosphatase; D015720:5'-Nucleotidase; D000243:Adenosine Deaminase; D000241:Adenosine