Figure 2 - full size

 

Figure 2.
Figure 2 Difference Fourier (2F[o] - F[c]) maps of the four heme groups in the tetragonal HEC crystal. Maps were calculated using the final model and contoured at 1.0 level, colored cyan. The heme groups of subunits A, B, C and D are shown in (a), (b), (c) and (d), respectively, with bonds in pink. Also shown are the residues His75, Asn148, Arg354 and Tyr358, as well as one or two active-site water molecules, colored green. The figures were produced using BobScript and Raster3D.

The above figure is reprinted by permission from the IUCr: Acta Crystallogr D Biol Crystallogr (2001, 57, 1-7) copyright 2001.