Figure 4.

Differentiated enzyme activity in IBS-n fecal samples. Certain probes were differentially hydrolyzed in fecal samples of IBS-n patients. LEfSe analysis shows probes with | discriminant score | > 2.5, p < 0.05. Probes that were less actively cleaved in IBS-n patient fecal samples are shown in blue, and probes more actively cleaved in IBS-n patient fecal samples are shown in red. The alphabets represent amino acid residues. d = D-aspartyl, s = D-Serinyl, 8 = sarcosinyl, gGlu = γ-glutamic acid, Mo = methionyl-S-oxide, Ac = acetyl. For enzyme abbreviations, please refer to Supplementary Figure S1.