Open AccessAnomalous Dispersion with Edges in the Soft X‐ray Region: First Results of Diffraction from Single Crystals of Ribosomes Near the K ‐Absorption Edge of Phosphorus
Author(s) -
Stuhrmann S.,
Hütsch M.,
Trame C.,
Thomas J.,
Stuhrmann H. B.
Publication year - 1995
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049594010873
Subject(s) - thermus thermophilus , diffraction , absorption (acoustics) , absorption edge , wavelength , crystallography , dispersion (optics) , optics , materials science , ribosome , crystal (programming language) , x ray crystallography , single crystal , molecular physics , chemistry , analytical chemistry (journal) , physics , optoelectronics , rna , biochemistry , escherichia coli , chromatography , band gap , computer science , gene , programming language
X‐ray diffraction from a single crystal of the small ribosomal subunit of Thermus thermophilus was measured at five wavelengths near the K ‐absorption edge of phosphorus. The intensity of the low‐order diffraction peaks varies strongly with the wavelength. It is influenced by the dispersion of contrast due to the P atoms of the ribosomal ribonucleic acid and by that of absorption, in comparable amounts.