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4avu

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Revision as of 06:37, 5 August 2016

Crystal structure of human tankyrase 2 in complex with 6(5H)- phenanthridinone

Structural highlights

4avu is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , ,
Related:	2y0i
Activity:	NAD(+) ADP-ribosyltransferase, with EC number 2.4.2.30
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[TNKS2_HUMAN] Poly-ADP-ribosyltransferase involved in various processes such as Wnt signaling pathway, telomere length and vesicle trafficking. Acts as an activator of the Wnt signaling pathway by mediating poly-ADP-ribosylation of AXIN1 and AXIN2, 2 key components of the beta-catenin destruction complex: poly-ADP-ribosylated target proteins are recognized by RNF146, which mediates their ubiquitination and subsequent degradation. Also mediates poly-ADP-ribosylation of BLZF1 and CASC3, followed by recruitment of RNF146 and subsequent ubiquitination. Mediates poly-ADP-ribosylation of TERF1, thereby contributing to the regulation of telomere length. May also regulate vesicle trafficking and modulate the subcellular distribution of SLC2A4/GLUT4-vesicles.^[1] ^[2] ^[3] ^[4]

Publication Abstract from PubMed

Tankyrases, an enzyme subfamily of human poly(ADP-ribosyl)polymerases, are potential drug targets especially against cancer. We have evaluated inhibition of tankyrases by known PARP inhibitors and report five cocrystal structures of the most potent compounds in complex with human tankyrase 2. The inhibitors include the small general PARP inhibitors Phenanthridinone, PJ-34, and TIQ-A as well as the more advanced inhibitors EB-47 and rucaparib. The compounds anchor to the nicotinamide subsite of tankyrase 2. Crystal structures reveal flexibility of the ligand binding site with implications for drug development against tankyrases and other ADP-ribosyltransferases. EB-47 mimics the substrate NAD(+) and extends from the nicotinamide to the adenosine subsite. The clinical ARTD1 inhibitor candidate rucaparib was the most potent tankyrase inhibitor identified (24 and 14 nM for tankyrases), which indicates that inhibition of tankyrases would affect the cellular responses of this compound.

Evaluation and Structural Basis for the Inhibition of Tankyrases by PARP Inhibitors.,Haikarainen T, Narwal M, Joensuu P, Lehtio L ACS Med Chem Lett. 2013 Nov 20;5(1):18-22. doi: 10.1021/ml400292s. eCollection, 2014 Jan 9. PMID:24900770^[5]

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

References

↑ Sbodio JI, Lodish HF, Chi NW. Tankyrase-2 oligomerizes with tankyrase-1 and binds to both TRF1 (telomere-repeat-binding factor 1) and IRAP (insulin-responsive aminopeptidase). Biochem J. 2002 Feb 1;361(Pt 3):451-9. PMID:11802774
↑ Cook BD, Dynek JN, Chang W, Shostak G, Smith S. Role for the related poly(ADP-Ribose) polymerases tankyrase 1 and 2 at human telomeres. Mol Cell Biol. 2002 Jan;22(1):332-42. PMID:11739745
↑ Huang SM, Mishina YM, Liu S, Cheung A, Stegmeier F, Michaud GA, Charlat O, Wiellette E, Zhang Y, Wiessner S, Hild M, Shi X, Wilson CJ, Mickanin C, Myer V, Fazal A, Tomlinson R, Serluca F, Shao W, Cheng H, Shultz M, Rau C, Schirle M, Schlegl J, Ghidelli S, Fawell S, Lu C, Curtis D, Kirschner MW, Lengauer C, Finan PM, Tallarico JA, Bouwmeester T, Porter JA, Bauer A, Cong F. Tankyrase inhibition stabilizes axin and antagonizes Wnt signalling. Nature. 2009 Oct 1;461(7264):614-20. doi: 10.1038/nature08356. Epub 2009 Sep 16. PMID:19759537 doi:10.1038/nature08356
↑ Zhang Y, Liu S, Mickanin C, Feng Y, Charlat O, Michaud GA, Schirle M, Shi X, Hild M, Bauer A, Myer VE, Finan PM, Porter JA, Huang SM, Cong F. RNF146 is a poly(ADP-ribose)-directed E3 ligase that regulates axin degradation and Wnt signalling. Nat Cell Biol. 2011 May;13(5):623-9. doi: 10.1038/ncb2222. Epub 2011 Apr 10. PMID:21478859 doi:10.1038/ncb2222
↑ Haikarainen T, Narwal M, Joensuu P, Lehtio L. Evaluation and Structural Basis for the Inhibition of Tankyrases by PARP Inhibitors. ACS Med Chem Lett. 2013 Nov 20;5(1):18-22. doi: 10.1021/ml400292s. eCollection, 2014 Jan 9. PMID:24900770 doi:http://dx.doi.org/10.1021/ml400292s

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 1: / Line 1: @@
 ==Crystal structure of human tankyrase 2 in complex with 6(5H)- phenanthridinone==
 <StructureSection load='4avu' size='340' side='right' caption='[[4avu]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2y0i|2y0i]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/NAD(+)_ADP-ribosyltransferase NAD(+) ADP-ribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.30 2.4.2.30] </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=4avu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4avu OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4avu RCSB], [http://www.ebi.ac.uk/pdbsum/4avu 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=4avu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4avu OCA], [http://pdbe.org/4avu PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4avu RCSB], [http://www.ebi.ac.uk/pdbsum/4avu PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4avu ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 19: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4avu" style="background-color:#fffaf0;"></div>
 ==See Also==

4avu

From Proteopedia

Revision as of 06:37, 5 August 2016

Crystal structure of human tankyrase 2 in complex with 6(5H)- phenanthridinone

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

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