the properties of these two enzymes are similar enough to permit subunits of chicken type m pyruvate kinase to combine with subunits of mammalian type l ( one of the three mammalian isozymes ) to form interspecies tetrameric hybrid isozymes in relative quantities that do not differ makedly from those formed when both the m and l isozymes are of mammalian origin .
C0014442
enzymes
C0022173
isozymes