2oyb: Difference between revisions
From Proteopedia
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| (9 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
< | ==The crystal structure of OspA mutant== | ||
<StructureSection load='2oyb' size='340' side='right'caption='[[2oyb]], [[Resolution|resolution]] 1.30Å' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2oyb]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Borreliella_burgdorferi Borreliella burgdorferi]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OYB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OYB FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.3Å</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=2oyb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2oyb OCA], [https://pdbe.org/2oyb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2oyb RCSB], [https://www.ebi.ac.uk/pdbsum/2oyb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2oyb ProSAT]</span></td></tr> | ||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/OSPA_BORBU OSPA_BORBU] | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/oy/2oyb_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2oyb ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Though beta-rich self-assemblies comprise a major structural class of polypeptides, a detailed understanding of the determinants of their structure and stability is lacking. In particular, the roles of repetitive stretches of side chains running the long axis of these beta-sheets, termed "cross-strand ladders," remain poorly characterized due to the inherently insoluble and heterogeneous nature of self-assemblies. To overcome these experimental challenges, we have established a complementary experimental system termed "peptide self-assembly mimics" (PSAMs). The PSAMs capture a defined number of self-assembly-like peptide repeats within a soluble beta-rich protein, making structural and energetic studies possible. In this work, we investigated the role of cross-strand ladders containing aromatic residues, which are prominent in self-assembling peptides. A combination of solution data and high-resolution crystal structures revealed that a single cross-strand ladder consisting solely of Tyr significantly stabilized, rigidified, and flattened the PSAM beta-sheet. These characteristics would stabilize each beta-sheet layer of a self-assembly and direct sheet conformations compatible with lamination. Our results therefore provide a rationale for the abundance of aromatic amino acids in fibril-forming peptides and establish important roles of cross-strand Tyr ladders in the structure and stability of beta-rich peptide self-assemblies. | |||
Aromatic cross-strand ladders control the structure and stability of beta-rich peptide self-assembly mimics.,Biancalana M, Makabe K, Koide A, Koide S J Mol Biol. 2008 Oct 31;383(1):205-13. Epub 2008 Aug 22. PMID:18762191<ref>PMID:18762191</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2oyb" style="background-color:#fffaf0;"></div> | |||
== | ==See Also== | ||
*[[Outer surface protein|Outer surface protein]] | |||
[[Category: | == References == | ||
[[Category: | <references/> | ||
[[Category: Biancalana | __TOC__ | ||
[[Category: Koide | </StructureSection> | ||
[[Category: Makabe | [[Category: Borreliella burgdorferi]] | ||
[[Category: Terechko | [[Category: Large Structures]] | ||
[[Category: Biancalana M]] | |||
[[Category: Koide S]] | |||
[[Category: Makabe K]] | |||
[[Category: Terechko V]] | |||