Figure 2
Difference Fourier electron-density maps (2Fo - Fc) of the [alpha]1 and [beta]1 haems of NO-HbTb and partially ligated forms (NO_x1-HbTb, NO_x2-HbTb and NO_x3-HbTb) at different X-ray doses (0.4, 4.0, 7.6 and 11.2 MGy, respectively). The maps were prepared using data at the same resolution (2.5 Å) and at the same electron-density level (1.0[sigma]).  [article HTML]

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