Figure 3
|2Fo − Fc| electron-density maps contoured at 1σ of the different ligands fitted in SmeCOSe structures. (a) Sulfate-bound model of WT SmeCOSe (PDB entry 6g5z). (b) Choline-bound model of WT SmeCOSe (PDB entry 6g60). (c) Choline-bound model of C54S SmeCOSe (PDB entry 7pth). (d) HEPES-bound model of C54S SmeCOSe (PDB entry 7ptj). |