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![[Figure 2]](ba0009fig2mag.jpg)
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Figure 2
The 3Fo − 2Fc electron density for the region around Trp48 in ProtG with the model superimposed. Additionally marked are the carbonyl O atoms in the idealized positions where strict planarity of the peptides, i.e. an ω angle of 180°, have been artificially imposed. Those positions clearly lie out of the centre of the density, by about 0.3 Å. |
![[Figure 2]](ba0009fig2.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
