L-seryl-[sulfatase] + S-adenosyl-L-methionine = 3-oxo-L-alanyl-[sulfatase] + 5'-deoxyadenosine + L-methionine + H(+)
l-seryl-[sulfatase] + s-adenosyl-l-methionine = 3-oxo-l-alanyl-[sulfatase] + 5'-deoxyadenosine + l-methionine + h(+)