6m7m: Difference between revisions

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<StructureSection load='6m7m' size='340' side='right'caption='[[6m7m]], [[Resolution|resolution]] 1.10&Aring;' scene=''>
<StructureSection load='6m7m' size='340' side='right'caption='[[6m7m]], [[Resolution|resolution]] 1.10&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[6m7m]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6M7M OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6M7M FirstGlance]. <br>
<table><tr><td colspan='2'>[[6m7m]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_syringae Pseudomonas syringae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6M7M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6M7M FirstGlance]. <br>
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[6eex|6eex]]</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]] 1.101&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6m7m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6m7m OCA], [http://pdbe.org/6m7m PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6m7m RCSB], [http://www.ebi.ac.uk/pdbsum/6m7m PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6m7m ProSAT]</span></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=6m7m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6m7m OCA], [https://pdbe.org/6m7m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6m7m RCSB], [https://www.ebi.ac.uk/pdbsum/6m7m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6m7m ProSAT]</span></td></tr>
</table>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The ice-nucleation protein InaZ from Pseudomonas syringae contains a large number of degenerate repeats that span more than a quarter of its sequence and include the segment GSTSTA. Ab initio structures of this repeat segment, resolved to 1.1 A by microfocus X-ray crystallography and to 0.9 A by the cryo-EM method MicroED, were determined from both racemic and homochiral crystals. The benefits of racemic protein crystals for structure determination by MicroED were evaluated and it was confirmed that the phase restriction introduced by crystal centrosymmetry increases the number of successful trials during the ab initio phasing of the electron diffraction data. Both homochiral and racemic GSTSTA form amyloid-like protofibrils with labile, corrugated antiparallel beta-sheets that mate face to back. The racemic GSTSTA protofibril represents a new class of amyloid assembly in which all-left-handed sheets mate with their all-right-handed counterparts. This determination of racemic amyloid assemblies by MicroED reveals complex amyloid architectures and illustrates the racemic advantage in macromolecular crystallography, now with submicrometre-sized crystals.
Homochiral and racemic MicroED structures of a peptide repeat from the ice-nucleation protein InaZ.,Zee CT, Glynn C, Gallagher-Jones M, Miao J, Santiago CG, Cascio D, Gonen T, Sawaya MR, Rodriguez JA IUCrJ. 2019 Jan 24;6(Pt 2):197-205. doi: 10.1107/S2052252518017621. eCollection, 2019 Mar 1. PMID:30867917<ref>PMID:30867917</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6m7m" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Cascio, D]]
[[Category: Gallagher-Jones, M]]
[[Category: Glynn, C]]
[[Category: Gonen, T]]
[[Category: Miao, J]]
[[Category: Rodriguez, J A]]
[[Category: Santiago, C G]]
[[Category: Sawaya, M R]]
[[Category: Zee, C]]
[[Category: Amyloid]]
[[Category: Ice nucleation]]
[[Category: Inaz]]
[[Category: Microed]]
[[Category: Protein fibril]]
[[Category: Pseudomonas syringae]]
[[Category: Pseudomonas syringae]]
[[Category: Racemic]]
[[Category: Cascio D]]
[[Category: Gallagher-Jones M]]
[[Category: Glynn C]]
[[Category: Gonen T]]
[[Category: Miao J]]
[[Category: Rodriguez JA]]
[[Category: Santiago CG]]
[[Category: Sawaya MR]]
[[Category: Zee C]]

Latest revision as of 14:41, 13 March 2024

rac-GSTSTA from degenerate octameric repeats in InaZ, residues 707-712

6m7m, resolution 1.10Å

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