label: N-acetyl-alpha-D-glucosaminyl-[heparan sulfate](n) + CoA + H(+) => alpha-D-glucosaminyl-[heparan sulfate](n) + acetyl-CoA
label_lc: n-acetyl-alpha-d-glucosaminyl-[heparan sulfate](n) + coa + h(+) => alpha-d-glucosaminyl-[heparan sulfate](n) + acetyl-coa