RGMB and colitis: We observed enrichments of Muribaculaceae, Lachnospiraceae, Ruminococcaceae, Akkermansiaceae, Rikenellaceae, Bacteroidaceae, Burkholderiaceae, Tannerellaceae, Lactobacillaceae, and Marinifilaceae, and reduction of Prevotellaceae, Helicobacteraceae, Deferribacteraceae, Desulfovibrionaceae, and Mitochondria in Rgmb-deficient colitis mice as shown by genus taxonomic rank (Figure 2E).