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==200us Temperature-Jump (Dark2) XFEL structure of Lysozyme== | ==200us Temperature-Jump (Dark2) XFEL structure of Lysozyme== | ||
<StructureSection load='8cw7' size='340' side='right'caption='[[8cw7]]' scene=''> | <StructureSection load='8cw7' size='340' side='right'caption='[[8cw7]], [[Resolution|resolution]] 1.57Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8CW7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8CW7 FirstGlance]. <br> | <table><tr><td colspan='2'>[[8cw7]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8CW7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8CW7 FirstGlance]. <br> | ||
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8cw7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8cw7 OCA], [https://pdbe.org/8cw7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8cw7 RCSB], [https://www.ebi.ac.uk/pdbsum/8cw7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8cw7 ProSAT]</span></td></tr> | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.57Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8cw7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8cw7 OCA], [https://pdbe.org/8cw7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8cw7 RCSB], [https://www.ebi.ac.uk/pdbsum/8cw7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8cw7 ProSAT]</span></td></tr> | |||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/LYSC_CHICK LYSC_CHICK] Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents. Has bacteriolytic activity against M.luteus.<ref>PMID:22044478</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Understanding and controlling protein motion at atomic resolution is a hallmark challenge for structural biologists and protein engineers because conformational dynamics are essential for complex functions such as enzyme catalysis and allosteric regulation. Time-resolved crystallography offers a window into protein motions, yet without a universal perturbation to initiate conformational changes the method has been limited in scope. Here we couple a solvent-based temperature jump with time-resolved crystallography to visualize structural motions in lysozyme, a dynamic enzyme. We observed widespread atomic vibrations on the nanosecond timescale, which evolve on the submillisecond timescale into localized structural fluctuations that are coupled to the active site. An orthogonal perturbation to the enzyme, inhibitor binding, altered these dynamics by blocking key motions that allow energy to dissipate from vibrations into functional movements linked to the catalytic cycle. Because temperature jump is a universal method for perturbing molecular motion, the method demonstrated here is broadly applicable for studying protein dynamics. | |||
Mapping protein dynamics at high spatial resolution with temperature-jump X-ray crystallography.,Wolff AM, Nango E, Young ID, Brewster AS, Kubo M, Nomura T, Sugahara M, Owada S, Barad BA, Ito K, Bhowmick A, Carbajo S, Hino T, Holton JM, Im D, O'Riordan LJ, Tanaka T, Tanaka R, Sierra RG, Yumoto F, Tono K, Iwata S, Sauter NK, Fraser JS, Thompson MC Nat Chem. 2023 Nov;15(11):1549-1558. doi: 10.1038/s41557-023-01329-4. Epub 2023 , Sep 18. PMID:37723259<ref>PMID:37723259</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 8cw7" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Gallus gallus]] | |||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Fraser JS]] | [[Category: Fraser JS]] | ||
Latest revision as of 15:00, 23 October 2024
200us Temperature-Jump (Dark2) XFEL structure of Lysozyme200us Temperature-Jump (Dark2) XFEL structure of Lysozyme
Structural highlights
FunctionLYSC_CHICK Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents. Has bacteriolytic activity against M.luteus.[1] Publication Abstract from PubMedUnderstanding and controlling protein motion at atomic resolution is a hallmark challenge for structural biologists and protein engineers because conformational dynamics are essential for complex functions such as enzyme catalysis and allosteric regulation. Time-resolved crystallography offers a window into protein motions, yet without a universal perturbation to initiate conformational changes the method has been limited in scope. Here we couple a solvent-based temperature jump with time-resolved crystallography to visualize structural motions in lysozyme, a dynamic enzyme. We observed widespread atomic vibrations on the nanosecond timescale, which evolve on the submillisecond timescale into localized structural fluctuations that are coupled to the active site. An orthogonal perturbation to the enzyme, inhibitor binding, altered these dynamics by blocking key motions that allow energy to dissipate from vibrations into functional movements linked to the catalytic cycle. Because temperature jump is a universal method for perturbing molecular motion, the method demonstrated here is broadly applicable for studying protein dynamics. Mapping protein dynamics at high spatial resolution with temperature-jump X-ray crystallography.,Wolff AM, Nango E, Young ID, Brewster AS, Kubo M, Nomura T, Sugahara M, Owada S, Barad BA, Ito K, Bhowmick A, Carbajo S, Hino T, Holton JM, Im D, O'Riordan LJ, Tanaka T, Tanaka R, Sierra RG, Yumoto F, Tono K, Iwata S, Sauter NK, Fraser JS, Thompson MC Nat Chem. 2023 Nov;15(11):1549-1558. doi: 10.1038/s41557-023-01329-4. Epub 2023 , Sep 18. PMID:37723259[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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