View source for 4hu9


==E. coli thioredoxin variant with (4S)-FluoroPro76 as single proline residue==
<StructureSection load='4hu9' size='340' side='right'caption='[[4hu9]], [[Resolution|resolution]] 1.55&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4hu9]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HU9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4HU9 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]] 1.55&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=4FB:(4S)-4-FLUORO-L-PROLINE'>4FB</scene>, <scene name='pdbligand=CU:COPPER+(II)+ION'>CU</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=4hu9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hu9 OCA], [https://pdbe.org/4hu9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4hu9 RCSB], [https://www.ebi.ac.uk/pdbsum/4hu9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4hu9 ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Fine-tuning protein stability: The non-natural amino acids (2S,4R)- and (2S,4S)-fluoroproline modulate protein stability by biasing the proline ring pucker and the cis/trans equilibrium of prolyl peptide bonds. We incorporated both fluoroproline stereoisomers at the invariant cis-proline residue of the thioredoxin fold. The results show that tertiary structure context overrules the conformational preferences of fluoroprolines.

(4R)- and (4S)-Fluoroproline in the Conserved cis-Prolyl Peptide Bond of the Thioredoxin Fold: Tertiary Structure Context Dictates Ring Puckering.,Rubini M, Scharer MA, Capitani G, Glockshuber R Chembiochem. 2013 Jun 17;14(9):1053-7. doi: 10.1002/cbic.201300178. Epub 2013 May, 27. PMID:23712956<ref>PMID:23712956</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4hu9" style="background-color:#fffaf0;"></div>

==See Also==
*[[Thioredoxin 3D structures|Thioredoxin 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Escherichia coli K-12]]
[[Category: Large Structures]]
[[Category: Capitani G]]
[[Category: Glockshuber R]]
[[Category: Rubini M]]
[[Category: Scharer MA]]