View source for 4wr4


==Crystal Structure of GST Mutated with Halogenated Tyrosine (7bGST-1)==
<StructureSection load='4wr4' size='340' side='right'caption='[[4wr4]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4wr4]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Schistosoma_japonicum Schistosoma japonicum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4WR4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4WR4 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]] 1.6&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BYR:3-BROMO-L-TYROSINE'>BYR</scene>, <scene name='pdbligand=GSH:GLUTATHIONE'>GSH</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=4wr4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4wr4 OCA], [https://pdbe.org/4wr4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4wr4 RCSB], [https://www.ebi.ac.uk/pdbsum/4wr4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4wr4 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/GST26_SCHJA GST26_SCHJA] Conjugation of reduced glutathione to a wide number of exogenous and endogenous hydrophobic electrophiles.  GST isoenzymes appear to play a central role in the parasite detoxification system. Other functions are also suspected including a role in increasing the solubility of haematin in the parasite gut.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Recent advances have fundamentally changed the ways in which synthetic amino acids are incorporated into proteins, enabling their efficient and multiple-site incorporation, in addition to the 20 canonical amino acids. This development provides opportunities for fresh approaches toward addressing fundamental problems in bioengineering. In the present study, we showed that the structural stability of proteins can be enhanced by integrating bulky halogenated amino acids at multiple selected sites. Glutathione S-transferase was thus stabilized significantly (by 5.2 and 5.6 kcal/mol) with 3-chloro- and 3-bromo-l-tyrosines, respectively, incorporated at seven selected sites. X-ray crystallographic analyses revealed that the bulky halogen moieties filled internal spaces within the molecules, and formed non-canonical stabilizing interactions with the neighboring residues. This new mechanism for protein stabilization is quite simple and applicable to a wide range of proteins, as demonstrated by the rapid stabilization of the industrially relevant azoreductase.

Protein stabilization utilizing a redefined codon.,Ohtake K, Yamaguchi A, Mukai T, Kashimura H, Hirano N, Haruki M, Kohashi S, Yamagishi K, Murayama K, Tomabechi Y, Itagaki T, Akasaka R, Kawazoe M, Takemoto C, Shirouzu M, Yokoyama S, Sakamoto K Sci Rep. 2015 May 18;5:9762. doi: 10.1038/srep09762. PMID:25985257<ref>PMID:25985257</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4wr4" style="background-color:#fffaf0;"></div>

==See Also==
*[[Glutathione S-transferase 3D structures|Glutathione S-transferase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Schistosoma japonicum]]
[[Category: Akasaka R]]
[[Category: Itagaki T]]
[[Category: Kawazoe M]]
[[Category: Ohtake K]]
[[Category: Sakamoto K]]
[[Category: Shirouzu M]]
[[Category: Takemoto C]]
[[Category: Tomabechi Y]]
[[Category: Yokoyama S]]