the three brush-border enzymes -- alanine aminopeptidase ( ec 3.4.11.2 ) , alkaline phosphatase ( ec 3.1.3.1 ) , and gamma-glutamyltransferase ( ec 2.3.2.2 ) -- are present in the urine of healthy persons in two variants , a particulate form and a soluble one .
C0002059
alkaline
C0020289
ec