Fig. 1From: Taxonomic profiling and populational patterns of bacterial bile salt hydrolase (BSH) genes based on worldwide human gut microbiomeComparison of known representative BSHs. a Secondary structure comparison. b Topological diagram. c 3D structure comparison of four BSHs that have reported their active site residues. Here, the red frames in the secondary structures, the red stars in the topological diagram, and the red chains in 3D structures both show the reported active site residues in four BSHBack to article page