5cgn: Difference between revisions

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'''Unreleased structure'''
==Structure of quasiracemic Ala-Magainin 2 with a beta amino acid substitution at position 8==
<StructureSection load='5cgn' size='340' side='right' caption='[[5cgn]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5cgn]] is a 8 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5CGN OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5CGN FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=DAL:D-ALANINE'>DAL</scene>, <scene name='pdbligand=DGL:D-GLUTAMIC+ACID'>DGL</scene>, <scene name='pdbligand=DHI:D-HISTIDINE'>DHI</scene>, <scene name='pdbligand=DIL:D-ISOLEUCINE'>DIL</scene>, <scene name='pdbligand=DLE:D-LEUCINE'>DLE</scene>, <scene name='pdbligand=DLY:D-LYSINE'>DLY</scene>, <scene name='pdbligand=DPN:D-PHENYLALANINE'>DPN</scene>, <scene name='pdbligand=DSE:N-METHYL-D-SERINE'>DSE</scene>, <scene name='pdbligand=DSG:D-ASPARAGINE'>DSG</scene>, <scene name='pdbligand=DVA:D-VALINE'>DVA</scene>, <scene name='pdbligand=MED:D-METHIONINE'>MED</scene>, <scene name='pdbligand=XCP:(1S,2S)-2-AMINOCYCLOPENTANECARBOXYLIC+ACID'>XCP</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5cgo|5cgo]]</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=5cgn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5cgn OCA], [http://pdbe.org/5cgn PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5cgn RCSB], [http://www.ebi.ac.uk/pdbsum/5cgn PDBsum]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Quasiracemic crystallography has been used to explore the significance of homochiral and heterochiral associations in a set of host-defense peptide derivatives. The previously reported racemic crystal structure of a magainin 2 derivative displayed a homochiral antiparallel dimer association featuring a "phenylalanine zipper" notable for the dual roles of phenylalanines in mediating dimerization and formation of an exposed hydrophobic swath. This motif is seen as well in two new quasiracemate crystals that contain the d form of the magainin 2 derivative along with an l-peptide in which one Ala has been replaced by a beta-amino acid residue. This structural trend supports the hypothesis that the Phe zipper motif has functional significance.


The entry 5cgn is ON HOLD  until Paper Publication
Quasiracemate Crystal Structures of Magainin 2 Derivatives Support the Functional Significance of the Phenylalanine Zipper Motif.,Hayouka Z, Thomas NC, Mortenson DE, Satyshur KA, Weisblum B, Forest KT, Gellman SH J Am Chem Soc. 2015 Sep 23;137(37):11884-7. doi: 10.1021/jacs.5b07206. Epub 2015 , Sep 10. PMID:26369301<ref>PMID:26369301</ref>


Authors: Hayouka, Z., Thomas, N.C., Mortenson, D.E., Satyshur, K.A., Weisblum, B., Forest, K.T., Gellman, S.H.
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
Description: Structure of quasiracemic Ala-Magainin 2 with a beta amino acid substitution at position 8
<div class="pdbe-citations 5cgn" style="background-color:#fffaf0;"></div>
[[Category: Unreleased Structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Forest, K T]]
[[Category: Gellman, S H]]
[[Category: Hayouka, Z]]
[[Category: Mortenson, D E]]
[[Category: Satyshur, K A]]
[[Category: Thomas, N C]]
[[Category: Weisblum, B]]
[[Category: Weisblum, B]]
[[Category: Mortenson, D.E]]
[[Category: Antimicrobial]]
[[Category: Hayouka, Z]]
[[Category: Antimicrobial protein]]
[[Category: Thomas, N.C]]
[[Category: Beta amino acid]]
[[Category: Forest, K.T]]
[[Category: Homochiral dimerization]]
[[Category: Satyshur, K.A]]
[[Category: Quasiracemate]]
[[Category: Gellman, S.H]]

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