title: Comparative kinetics of the sulphatases A.
abstract: The kinetic behaviour of the sulphatase A from kangaroo liver is that of a simple hysteretic system involving a substrate-modified form of the enzyme. The equilibrium between the native and substrate-modified forms is influenced by one of the reaction products, sulphate. The behaviour of the system differs markedly from that involving the ox enzyme and a generalised model is presented to account for the behaviour of the sulphatases A from ox, human, rat and kangaroo livers.
mesh_terms: D000818:Animals; D001192:Arylsulfatases / Q000378:metabolism*; D002417:Cattle; D006801:Humans; D007700:Kinetics; D008099:Liver / Q000201:enzymology*; D007614:Macropodidae; D008954:Models, Biological; D051381:Rats; D013045:Species Specificity; D013429:Sulfatases / Q000378:metabolism*
chemical_list: D013429:Sulfatases; D001192:Arylsulfatases