the lung of adult man contains several times more 5'-nucleotidase ( ec 3.1.3.5 ) , alkaline phosphatase ( ec 3.1.3.1 ) and gamma-glutamyl-transpeptidase ( ec 2.3.2.2 ) per gram than does that of the 12- to 16-week fetus .
C0002059
alkaline phosphatase
C0020289
ec