Figure 3
Experimental electron-density maps obtained after DM for the zinc β-lactamase derivative crystals of the three studied Gd complexes. (a) Gd-DTPA-BMA, (b) Gd-DO3A, (c) Gd-DOTMA. The represented protein region corresponds to helix H1 (residues 60–75). Maps are contoured at 1σ. This figure was drawn with the program BOBSCRIPT (Esnouf, 1997). |