The results showed the clear deficiency in β1,6-GlcNAc complex branched N-glycans (detected by L-PHA) in the intestinal epithelial cell surface (CD45− cells) of colitis-susceptible Mgat5-/- mice compared with Mgat5WT (Figure 1(a,b); Supplementary Figure S1C and D). The gene discussed is MGAT5; the disease is colitis.