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E pluribus unum, no more: From one crystal, many conformations #MMPMID25113271
Woldeyes RA; Sivak DA; Fraser JS
Curr Opin Struct Biol 2014[Oct]; ä (ä): 56-62 PMID25113271show ga
Several distinct computational approaches have recently been implemented to represent conformational heterogeneity from time- and space-averaged X-ray crystallography datasets. As these modeling methods mature, newly discovered alternative conformations are being used to derive functional protein mechanisms. Room temperature X-ray data collection is emerging as a key variable for sampling functionally relevant conformations also observed in solution studies. Although concerns about radiation damage are warranted with higher temperature data collection, ?diffract and destroy? strategies on X-ray free electron lasers may permit radiation damage-free data collection. X-ray crystallography need not be confined to ?static unique snapshots?; these experimental and computational advances are revealing how the many conformations populated within a single crystal are used in biological mechanisms.