期刊
ACTA CRYSTALLOGRAPHICA SECTION D-STRUCTURAL BIOLOGY
卷 56, 期 -, 页码 232-237出版社
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S0907444999016352
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A quick (less than 1 min) soak of protein crystals in a cryo-solution containing bromide or iodide anions leads to incorporation of these anomalous scatterers into the ordered solvent region around the protein molecules. These halide anions provide a convenient way of phasing through their anomalous scattering signal: bromides using multiwavelength anomalous dispersion (MAD) and bromides and/or iodides using single-wavelength anomalous dispersion (SAD) or single isomorphous replacement with anomalous scattering (SIRAS) methods. This approach has been tested successfully on four different proteins and has been used to solve the structure of a new protein of molecular weight 30 kDa.
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