label: N(4)-[6-(N-acetyl-alpha-D-glucosaminyl-1-phospho)-alpha-D-mannosyl-(1->2)-alpha-D-mannosyl-(glycan)]-L-asparaginyl-[protein] + UMP + H(+) => N(4)-[alpha-D-mannosyl-(1->2)-alpha-D-mannosyl-(glycan)]-L-asparaginyl-[protein] + UDP-N-acetyl-alpha-D-glucosamine
label_lc: n(4)-[6-(n-acetyl-alpha-d-glucosaminyl-1-phospho)-alpha-d-mannosyl-(1->2)-alpha-d-mannosyl-(glycan)]-l-asparaginyl-[protein] + ump + h(+) => n(4)-[alpha-d-mannosyl-(1->2)-alpha-d-mannosyl-(glycan)]-l-asparaginyl-[protein] + udp-n-acetyl-alpha-d-glucosamine