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Figure 2
The basic scattering functions of the large subunit of E. coli ribosomes from ASAXS at wavelengths near the K absorption edge of phosphorus. The upper curve is 〈|U(Q)|2〉 which does not depend on the wavelength. The lowest 〈|V(Q)|2〉 is the scattering intensity of the phosphorus atoms of the ribosomal RNA. The cross term 2〈Re{U(Q)V*(Q)}〉 is in the middle of the figure. The open spheres are the values of the basic scattering functions deduced from seven scattering functions measured at wavelengths near the K-edge of phosphorus. The line is obtained from an indirect method using the anomalous dispersion of the distance distribution function. There are about 1500 P atoms per 1500 kD of the ribosomal subunit. The intensity scale is given in arbitrary units. The data were obtained at the beamline A1 of HASYLAB (Hütsch, 1992BB17).

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 40| Part s1| February 2007| Pages s23-s27
doi:10.1107/S0021889807003718
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