View source for 5yan


==Deconstructing the Salt-Bridge Network of a Computationally Designed Collagen Heterotrimer==
<StructureSection load='5yan' size='340' side='right'caption='[[5yan]], [[Resolution|resolution]] 1.77&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5yan]] is a 6 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5YAN OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5YAN FirstGlance]. <br>
</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=HYP:4-HYDROXYPROLINE'>HYP</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5yan FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5yan OCA], [http://pdbe.org/5yan PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5yan RCSB], [http://www.ebi.ac.uk/pdbsum/5yan PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5yan ProSAT]</span></td></tr>
</table>
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== Publication Abstract from PubMed ==
One-quarter of the 28 types of natural collagen exist as heterotrimers. The oligomerization state of collagen affects the structure and mechanics of the extracellular matrix, providing essential cues to modulate biological and pathological processes. A lack of high-resolution structural information limits our mechanistic understanding of collagen heterospecific self-assembly. Here, the 1.77-A resolution structure of a synthetic heterotrimer demonstrates the balance of intermolecular electrostatics and hydrogen bonding that affects collagen stability and heterospecificity of assembly. Atomistic simulations and mutagenesis based on the solved structure are used to explore the contributions of specific interactions to energetics. A predictive model of collagen stability and specificity is developed for engineering novel collagen structures.

How electrostatic networks modulate specificity and stability of collagen.,Zheng H, Lu C, Lan J, Fan S, Nanda V, Xu F Proc Natl Acad Sci U S A. 2018 Jun 12;115(24):6207-6212. doi:, 10.1073/pnas.1802171115. Epub 2018 May 29. PMID:29844169<ref>PMID:29844169</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5yan" style="background-color:#fffaf0;"></div>

==See Also==
*[[Collagen 3D structures|Collagen 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Fan, S]]
[[Category: Collagen]]
[[Category: Heterotrimer]]
[[Category: Ion pair]]
[[Category: Structural protein]]