SIAT1
ST6GAL1
UniProt:P15907 ST6GAL1
GGNT5
MGAT5
UniProt:Q09328 MGAT5
CGS23
NANTA3
SIAT4C
ST3GAL4
STZ
UniProt:Q11206 ST3GAL4
Addition of GlcNAc to position 4 by N-acetylglucosaminyltransferase (GnT)-IV
Addition of GlcNAc to position 5 by MGAT5
Addition of galactose by beta 4-galactosyltransferases
Addition of alpha-2,6-sialic acid to terminal galactose of N-glycans by ST6GAL1
Addition of alpha-2,8-sialic acid to N-glycan over a galactose by ST8SIAs
Addition of alpha-2,3-sialic acid to N-glycan over a galactose by ST3GAL4
N-Glycan antennae elongation