MUC5AC and neoplasm: Overall, significant differences in abundance for Patescibacteria were found between (1) FD and adjacent non-tumor tissues (P = 0.024), (2) FD and tumor tissues (P = 0.014), and (3) FD tissues and tumors with intestinal (P = 0.057), mixed (P = 0.068), and null (0.0191) mucin phenotypes (Fig. 3A).