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020 ▼a 9781088379707
035 ▼a (MiAaPQ)AAI22615870
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 247004
0820 ▼a 574
1001 ▼a Pillar, Veronica Drabek.
24510 ▼a Experimental Characteristics of Diffuse X-Ray Scattering in Lysozyme Crystals.
260 ▼a [S.l.]: ▼b Cornell University., ▼c 2019.
260 1 ▼a Ann Arbor: ▼b ProQuest Dissertations & Theses, ▼c 2019.
300 ▼a 143 p.
500 ▼a Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
500 ▼a Advisor: Gruner, Sol.
5021 ▼a Thesis (Ph.D.)--Cornell University, 2019.
506 ▼a This item must not be sold to any third party vendors.
520 ▼a X-ray crystallography, a popular and powerful technique for determining the atomic structures of proteins and other macromolecules, is traditionally limited to reporting static structures, whereas proteins in vivo are constantly shifting between conformations. Such conformational dynamics give rise to structured diffuse scattering, which is observable in protein crystallography experiments. Because the measurement of diffuse scattering involves numerous experimental challenges beyond those inherent to traditional crystallography, some basic questions about the behavior of diffuse intensities remain unanswered: how reproducible is the diffuse intensity between ostensibly identical crystals? What happens to diffuse intensity when the protein binds to an inhibitor molecule, when the crystal is cryocooled, or when it suffers radiation damage? Here, we present the results of diffuse scattering experiments on 23 different lysozyme crystals under a variety of experimental conditions. It is shown that diffuse intensity is highly consistent between ostensibly identical room temperature crystals. Binding to an inhibitor reduces the diffuse intensity non-uniformly, suggesting a change in the molecular motions that produce diffuse scattering. Cryocooling drastically changes the diffuse intensity pattern, indicating that cryocooled crystals are poor representatives of the correlated displacements in room temperature crystals. Radiation dose effects in a single image's diffuse scattering are also discussed.
590 ▼a School code: 0058.
650 4 ▼a Physics.
650 4 ▼a Biophysics.
690 ▼a 0605
690 ▼a 0786
71020 ▼a Cornell University. ▼b Physics.
7730 ▼t Dissertations Abstracts International ▼g 81-04B.
773 ▼t Dissertation Abstract International
790 ▼a 0058
791 ▼a Ph.D.
792 ▼a 2019
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T15493340 ▼n KERIS ▼z 이 자료의 원문은 한국교육학술정보원에서 제공합니다.
980 ▼a 202002 ▼f 2020
990 ▼a ***1008102
991 ▼a E-BOOK