Figure 2
Conformation of CPHPC in bound trans (a, b) and cis (c) forms together with 2mFo − DFc OMIT maps contoured at 1.2σ and carved at 1.6 Å around ligand atoms in PyMOL (DeLano, 2002). Orthogonal views of the same site in (a) and (b) show metal and water ligation and the kinked alkyl chain, while views (b) and (c) show the distinct differences in the interactions of the trans and cis isomers with water molecules. Cadmium ions and water molecules are shown in magenta and as red spheres, respectively; CPHPC C atoms are in green. |