deduced amino acid sequences of human arylsulfatase a , human asb , human steroid sulfatase , human glucosamine-6-sulfatase , and an arylsulfatase from sea urchin showed a substantial degree of similarity suggesting that they arose from a common ancestral gene and are members of an arylsulfatase gene family .
C0007804
arylsulfatase a
C0003940
arylsulfatase