PMID: 36164May 10, 1979

The sulphatase of ox liver. XXII. Further observations on the cerebroside sulphatase activity of sulphatase A

Biochimica Et Biophysica Acta
A B Roy


Further studies have been made of the cerebroside sulphatase activity of the sulphatase A (aryl-sulphate sulphohydrolase, EC of ox liver. It is concluded that a cerebroside sulphate-modified form of the enzyme is not produced and that the kinetics of the reaction can be explained by the utilisation of the substrate and accumulation of (SO4)2-. The hypothesis is advanced that this difference between the cerebroside sulphatase and arylsulphatase activities arises from non-polar binding of the cerebroside to the enzyme. Possible reasons for the differences between these results and those of other (Stinshoff, K. and Jatzkewitz, H. (1975) Biochim. Biophys. Acta 377, 126-138) are considered.

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