label: a beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-alpha-D-GlcNAc-diphospho-di-trans,poly-cis-dolichol + GDP + H(+) => an N,N'-diacetylchitobiosyl-diphospho-di-trans,poly-cis-dolichol + GDP-alpha-D-mannose
label_lc: a beta-d-man-(1->4)-beta-d-glcnac-(1->4)-alpha-d-glcnac-diphospho-di-trans,poly-cis-dolichol + gdp + h(+) => an n,n'-diacetylchitobiosyl-diphospho-di-trans,poly-cis-dolichol + gdp-alpha-d-mannose