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![[Figure 1]](kw5135fig1mag.jpg)
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Figure 1
Peak frequencies which can be produced by noise in the m|Fo| − D|Fc| maps from experimental and modelling errors. (a) Peak frequencies around P, C1′ and O6/N6/O4/N4 atoms (the sixth heteroatom in purine and the fourth heteroatom in pyrimidine) are shown at thresholds of 3.5, 3 or 2.5σ. Simulations were carried out with FoFc error or sigmaF error. The bar indicates standard deviation within all residues. (b) Peak frequencies of P atoms in the simulation with FoFc error. Atoms without alternative locations were used to draw the figures. |
![[Figure 1]](kw5135fig1.jpg)
 | STRUCTURAL BIOLOGY |
ISSN: 2059-7983
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