Lumped glycosyltransferase reactions group O:38: acetyl-glucosaminyltransferase, glucosyltransferase, galactosyltransferase
uacgam_c + udpg_c + 2.0 udpgal_c + udcdpgalnac_c ⇌ 4.0 udp_c + udcdpgalnac_b1_3_glc_b1_2_glcnac_b1_4_gal_b1_4_gal_c