利用x射线诱导的各向异性晶格变化提高蛋白粉末衍射中的强度提取:在重原子检测中的应用

Q2 Chemistry

Zeitschrift Fur Kristallographie Pub Date : 2007-11-01 DOI:10.1524/ZKRI.2007.2007.SUPPL_26.39

C. Besnard, F. Camus, M. Fleurant, A. Dahlström, Jonathan P. Wright, I. Margiolaki, P. Pattison, M. Schiltz

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引用次数: 5

摘要

利用猪胰腺弹性蛋白酶(PPE)细胞参数在x射线诱导下的各向异性变化进行多重pawley细化，以改善粉末图谱高角度区域重叠峰的反褶积。结合扫描的好处是，用于检测铀酰PPE衍生物中重原子位置的同构差异帕特森图的质量得到了改善。

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Exploiting X-ray induced anisotropic lattice changes to improve intensity extraction in protein powder diffraction: Application to heavy atom detection

X-ray induced anisotropic variations of cell parameters in porcine pancreatic elastase (PPE) were used in a multi-Pawley refinement in order to improve the deconvolution of overlapping peaks occurring in the high-angle region of the powder pattern. The benefit of combining scans is demonstrated by an improvement in the quality of the isomorphous difference Patterson maps used to detect the positions of heavy atoms in a uranyl derivative of PPE.

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来源期刊

Zeitschrift Fur Kristallographie 物理-晶体学

CiteScore

1.47

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Zeitschrift für Kristallographie International journal for structural, physical, and chemical aspects of crystalline materials ISSN 0044-2968 Founded in 1877 by Paul Groth Zeitschrift für Kristallographie is one of the world’s oldest scientific journals. In original papers, letters and review articles it presents results of theoretical or experimental study on crystallography.