View source for 4igs


==Crystal structure of human Aldose Reductase complexed with NADP+ and JF0064==
<StructureSection load='4igs' size='340' side='right'caption='[[4igs]], [[Resolution|resolution]] 0.85&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4igs]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4IGS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4IGS FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=64I:2,2,3,3,5,5,6,6-OCTAFLUOROBIPHENYL-4,4-DIOL'>64I</scene>, <scene name='pdbligand=NAP:NADP+NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NAP</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=4igs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4igs OCA], [https://pdbe.org/4igs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4igs RCSB], [https://www.ebi.ac.uk/pdbsum/4igs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4igs ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/ALDR_HUMAN ALDR_HUMAN] Catalyzes the NADPH-dependent reduction of a wide variety of carbonyl-containing compounds to their corresponding alcohols with a broad range of catalytic efficiencies.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Aldo-keto reductases (AKRs) are mostly monomeric enzymes which fold into a highly conserved (alpha/beta)8 barrel, while their substrate specificity and inhibitor selectivity are determined by interaction with residues located in three highly variable external loops. The closely related human enzymes aldose reductase (AR or AKR1B1) and AKR1B10 are of biomedical interest because of their involvement in secondary diabetic complications (AR) and in cancer, e.g. hepatocellular carcinoma and smoking-related lung cancer (AKR1B10). After characterization of the IC50 values of both AKRs with a series of polyhalogenated compounds, 2,2',3,3',5,5',6,6'-octafluoro-4,4'-biphenyldiol (JF0064) was identified as a lead inhibitor of both enzymes with a new scaffold (a 1,1'-biphenyl-4,4'-diol). An ultrahigh-resolution X-ray structure of the AR-NADP(+)-JF0064 complex has been determined at 0.85 A resolution, allowing it to be observed that JF0064 interacts with the catalytic residue Tyr48 through a negatively charged hydroxyl group (i.e. the acidic phenol). The non-competitive inhibition pattern observed for JF0064 with both enzymes suggests that this acidic hydroxyl group is also present in the case of AKR1B10. Moreover, the combination of surface lysine methylation and the introduction of K125R and V301L mutations enabled the determination of the X-ray crystallographic structure of the corresponding AKR1B10-NADP(+)-JF0064 complex. Comparison of the two structures has unveiled some important hints for subsequent structure-based drug-design efforts.

Identification of a novel polyfluorinated compound as a lead to inhibit the human enzymes aldose reductase and AKR1B10: structure determination of both ternary complexes and implications for drug design.,Cousido-Siah A, Ruiz FX, Mitschler A, Porte S, de Lera AR, Martin MJ, Manzanaro S, de la Fuente JA, Terwesten F, Betz M, Klebe G, Farres J, Pares X, Podjarny A Acta Crystallogr D Biol Crystallogr. 2014 Mar;70(Pt 3):889-903. doi:, 10.1107/S1399004713033452. Epub 2014 Feb 27. PMID:24598757<ref>PMID:24598757</ref>

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

==See Also==
*[[Aldose reductase 3D structures|Aldose reductase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Cousido-Siah A]]
[[Category: Farres J]]
[[Category: Klebe G]]
[[Category: Martin MJ]]
[[Category: Mitschler A]]
[[Category: Pares X]]
[[Category: Podjarny A]]
[[Category: Porte S]]
[[Category: Ruiz FX]]
[[Category: De Lera AR]]
[[Category: De la Fuente JA]]