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![[Figure 6]](ba5137fig6mag.jpg)
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Figure 6
Radiation damage for B3C site 1 in proteinase K. The absorbed dose for the crystal is given in MGy (1 Gy = 1 J kg−1). (a) Refined occupancies (SHELXL) for the three Br atoms and the mean value (black) of site 1. The first data point is the occupancy after MAD data collection and a single burn and the subsequent five points show the change in occupancy with increasing dose (see § ![[link]](../../../../../../logos/arrows/d_arr.gif) 4.2). A drop in the refined occupancies of about 15% is observed after a dose of 12.9 MGy. (b) Electron density at site 1 contoured at 1σ. The serine residue is used as a reference since its density is not affected by irradiation. The density at the Br atoms clearly decreases with dose, but not all three Br atoms are affected equally. |
![[Figure 6]](ba5137fig6.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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