Figure 2 - full size

Figure 2.
Figure 2. Stereo view of the final 2mF[o]–DF[c] electron density map for COHb, showing (a) the α haem and (b) the β haem. Density is contoured at 1.5σ. The C termini of the α and β subunits are shown in (c) and (d), respectively. Tyr141α and Tyr145β show substantial shifts compared to PDB 1HHO.