4icc

From Proteopedia

(Difference between revisions)

Revision as of 14:56, 4 August 2016

Crystal structure of human AKR1B10 complexed with NADP+ and JF0064

Structural highlights

4icc is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
NonStd Res:	,
Related:	1zua, 4icf, 4igs, 4ice
Gene:	AKR1B10, AKR1B11 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[AK1BA_HUMAN] Acts as all-trans-retinaldehyde reductase. Can efficiently reduce aliphatic and aromatic aldehydes, and is less active on hexoses (in vitro). May be responsible for detoxification of reactive aldehydes in the digested food before the nutrients are passed on to other organs.^[1]

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^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Gallego O, Ruiz FX, Ardevol A, Dominguez M, Alvarez R, de Lera AR, Rovira C, Farres J, Fita I, Pares X. Structural basis for the high all-trans-retinaldehyde reductase activity of the tumor marker AKR1B10. Proc Natl Acad Sci U S A. 2007 Dec 26;104(52):20764-9. Epub 2007 Dec 17. PMID:18087047
↑ 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. 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. Acta Crystallogr D Biol Crystallogr. 2014 Mar;70(Pt 3):889-903. doi:, 10.1107/S1399004713033452. Epub 2014 Feb 27. PMID:24598757 doi:http://dx.doi.org/10.1107/S1399004713033452

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4icc"

@@ Line 1: / Line 1: @@
 ==Crystal structure of human AKR1B10 complexed with NADP+ and JF0064==
 <StructureSection load='4icc' size='340' side='right' caption='[[4icc]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
@@ Line 7: / Line 8: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1zua|1zua]], [[4icf|4icf]], [[4igs|4igs]], [[4ice|4ice]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">AKR1B10, AKR1B11 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=4icc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4icc OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4icc RCSB], [http://www.ebi.ac.uk/pdbsum/4icc PDBsum]</span></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=4icc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4icc OCA], [http://pdbe.org/4icc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4icc RCSB], [http://www.ebi.ac.uk/pdbsum/4icc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4icc ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 19: / Line 20: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4icc" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

4icc

From Proteopedia

Revision as of 14:56, 4 August 2016

Crystal structure of human AKR1B10 complexed with NADP+ and JF0064

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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