Extended Data Fig. 5: Highly conserved residues in these NTF2-like proteins.

a, Residues surround the K113 and distance between K113, W31, and D101. b, Residues around K113 are highly conserved across these NTF2-like proteins. c, Residues located at the side of active tunnel in AkaM. d, Residues located at the side of active tunnel in CatM. e-f, The two different geometries of active side tunnel in AkaM and CatM. The AkaM, SacM, CatM, and MicM are shown in green, wheat, lime, and light blue, respectively.