Proteobacteria (0.03 and 1% vs 1.5%, FDR = 0.035, FDR = 0.01) and Bacteroidetes (61.3 and 61.1% vs 33%, FDR = 0.03, FDR = 0.002) were shown to be phyla overrepresented in BRAF wt CRC-carrier groups, while Firmicutes were more abundant in controls (31.8 and 33.4% vs 60.1%, FDR = 0.035, FDR = 0.002). This evidence concerns the gene BRAF and colorectal carcinoma.