View source for 4ntp


==Crystal structure of macrocycles containing A 17-23 (LV(PHI)FAED) and A 30-36 (AII(SAR)L(ORN)V)==
<StructureSection load='4ntp' size='340' side='right'caption='[[4ntp]], [[Resolution|resolution]] 1.99&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4ntp]] is a 16 chain structure with sequence from [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4NTP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4NTP 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]] 1.987&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=ORN:L-ORNITHINE'>ORN</scene>, <scene name='pdbligand=PHI:IODO-PHENYLALANINE'>PHI</scene>, <scene name='pdbligand=SAR:SARCOSINE'>SAR</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=4ntp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ntp OCA], [https://pdbe.org/4ntp PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4ntp RCSB], [https://www.ebi.ac.uk/pdbsum/4ntp PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4ntp ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
A peptide derived from Abeta17-36 crystallizes to form trimers that further associate to form higher-order oligomers. The trimers consist of three highly twisted beta-hairpins in a triangular arrangement. Two trimers associate face-to-face in the crystal lattice to form a hexamer; four trimers in a tetrahedral arrangement about a central cavity form a dodecamer. These structures provide a working model for the structures of oligomers associated with neurodegeneration in Alzheimer's disease.

X-ray Crystallographic Structures of Trimers and Higher-Order Oligomeric Assemblies of a Peptide Derived from Abeta,Spencer RK, Li H, Nowick JS J Am Chem Soc. 2014 Apr 3. PMID:24669800<ref>PMID:24669800</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4ntp" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Synthetic construct]]
[[Category: Li H]]
[[Category: Nowick JS]]
[[Category: Spencer RK]]