HNF1A and type 2 diabetes mellitus: The bacteria and archaea profiles for the first control, HNF1A-MODY, and T2DM at the phylum level were as follows: Euryarchaeota 0.12% versus 0.11% versus 0.13%; Actinobacteria 9.53% versus 9.31% versus 11.70; Bacteroidetes 6.39% versus 1.09% versus 1.30%; Firmicutes 77.02% versus 87.36% versus 80.09%; Proteobacteria 0.36% versus 0.35% versus 2.82%; Synergistetes 0.00% versus 0.00% versus 0.10%; Tenericutes 0.05% versus 0.005% versus 0.001%; Verrucomicrobia 6.52% versus 1.78% versus 3.85% (Figure 2).