Lumped glycosyltransferase reactions group O:53: rhamnosyltransferase, galactosyltransferase, acetyl-galactosyltransferase
dtdprmn_c + udpgal_c + unaga_c + udpacgal_c ⇌ dtdp_c + 2.0 udp_c + udcdpglcnac_a1_3_rmn_b1_4_galnac_a1_4_galf_c