5xst: Difference between revisions

Revision as of 05:29, 25 April 2018

novel orally efficacious inhibitors complexed with PARP1

Structural highlights

5xst is a 1 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	8E6, SO4
Activity:	NAD(+) ADP-ribosyltransferase, with EC number 2.4.2.30
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PARP1_HUMAN] Involved in the base excision repair (BER) pathway, by catalyzing the poly(ADP-ribosyl)ation of a limited number of acceptor proteins involved in chromatin architecture and in DNA metabolism. This modification follows DNA damages and appears as an obligatory step in a detection/signaling pathway leading to the reparation of DNA strand breaks. Mediates the poly(ADP-ribosyl)ation of APLF and CHFR. Positively regulates the transcription of MTUS1 and negatively regulates the transcription of MTUS2/TIP150. With EEF1A1 and TXK, forms a complex that acts as a T-helper 1 (Th1) cell-specific transcription factor and binds the promoter of IFN-gamma to directly regulate its transcription, and is thus involved importantly in Th1 cytokine production.^[1] ^[2] ^[3] ^[4]

Publication Abstract from PubMed

The nuclear protein poly(ADP-ribose) polymerases-1/2 (PARP-1/2) are involved in DNA repair damaged by endogenous or exogenous process. And PARP-1/2 inhibitors have been proved to be clinically efficacious for DNA repair deficient tumors in the past decade. We have developed a series of 4,5,6,7-tetrahydrothienopyridin-2-yl benzimidazole carboxamides as novel and potent PARP-1/2 inhibitors. The best compound resulted from this series is compound 27 which displays excellent PARP-1 and PARP-2 inhibitory activity with IC50 of 18nM and 42nM, respectively. Furthermore, it can selectively kill BRCA2 deficient V-C8 cells with a CC50 of 920nM. In the MDA-MB-436 (BRCA-1 mutant) xenograft model, this compound was well tolerated and showed single-agent activity. Based on the results above, compound 27 has been selected as a lead candidate targeting PARP-1/2 and its preclinical characterization is also underway.

Design and synthesis of 2-(4,5,6,7-tetrahydrothienopyridin-2-yl)-benzoimidazole carboxamides as novel orally efficacious Poly(ADP-ribose)polymerase (PARP) inhibitors.,Chen X, Huan X, Liu Q, Wang Y, He Q, Tan C, Chen Y, Ding J, Xu Y, Miao Z, Yang C Eur J Med Chem. 2018 Feb 10;145:389-403. doi: 10.1016/j.ejmech.2018.01.018. Epub , 2018 Jan 8. PMID:29335205^[5]

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

References

↑ Maruyama T, Nara K, Yoshikawa H, Suzuki N. Txk, a member of the non-receptor tyrosine kinase of the Tec family, forms a complex with poly(ADP-ribose) polymerase 1 and elongation factor 1alpha and regulates interferon-gamma gene transcription in Th1 cells. Clin Exp Immunol. 2007 Jan;147(1):164-75. PMID:17177976 doi:10.1111/j.1365-2249.2006.03249.x
↑ Ahel I, Ahel D, Matsusaka T, Clark AJ, Pines J, Boulton SJ, West SC. Poly(ADP-ribose)-binding zinc finger motifs in DNA repair/checkpoint proteins. Nature. 2008 Jan 3;451(7174):81-5. doi: 10.1038/nature06420. PMID:18172500 doi:10.1038/nature06420
↑ Reinemund J, Seidel K, Steckelings UM, Zaade D, Klare S, Rompe F, Katerbaum M, Schacherl J, Li Y, Menk M, Schefe JH, Goldin-Lang P, Szabo C, Olah G, Unger T, Funke-Kaiser H. Poly(ADP-ribose) polymerase-1 (PARP-1) transcriptionally regulates angiotensin AT2 receptor (AT2R) and AT2R binding protein (ATBP) genes. Biochem Pharmacol. 2009 Jun 15;77(12):1795-805. doi: 10.1016/j.bcp.2009.02.025., Epub 2009 Mar 19. PMID:19344625 doi:10.1016/j.bcp.2009.02.025
↑ Ahel D, Horejsi Z, Wiechens N, Polo SE, Garcia-Wilson E, Ahel I, Flynn H, Skehel M, West SC, Jackson SP, Owen-Hughes T, Boulton SJ. Poly(ADP-ribose)-dependent regulation of DNA repair by the chromatin remodeling enzyme ALC1. Science. 2009 Sep 4;325(5945):1240-3. doi: 10.1126/science.1177321. Epub 2009 Aug, 6. PMID:19661379 doi:10.1126/science.1177321
↑ Chen X, Huan X, Liu Q, Wang Y, He Q, Tan C, Chen Y, Ding J, Xu Y, Miao Z, Yang C. Design and synthesis of 2-(4,5,6,7-tetrahydrothienopyridin-2-yl)-benzoimidazole carboxamides as novel orally efficacious Poly(ADP-ribose)polymerase (PARP) inhibitors. Eur J Med Chem. 2018 Feb 10;145:389-403. doi: 10.1016/j.ejmech.2018.01.018. Epub , 2018 Jan 8. PMID:29335205 doi:https://dx.doi.org/10.1016/j.ejmech.2018.01.018

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OCA

[1] Maruyama T, Nara K, Yoshikawa H, Suzuki N. Txk, a member of the non-receptor tyrosine kinase of the Tec family, forms a complex with poly(ADP-ribose) polymerase 1 and elongation factor 1alpha and regulates interferon-gamma gene transcription in Th1 cells. Clin Exp Immunol. 2007 Jan;147(1):164-75. PMID:17177976 doi:10.1111/j.1365-2249.2006.03249.x

[2] Ahel I, Ahel D, Matsusaka T, Clark AJ, Pines J, Boulton SJ, West SC. Poly(ADP-ribose)-binding zinc finger motifs in DNA repair/checkpoint proteins. Nature. 2008 Jan 3;451(7174):81-5. doi: 10.1038/nature06420. PMID:18172500 doi:10.1038/nature06420

[3] Reinemund J, Seidel K, Steckelings UM, Zaade D, Klare S, Rompe F, Katerbaum M, Schacherl J, Li Y, Menk M, Schefe JH, Goldin-Lang P, Szabo C, Olah G, Unger T, Funke-Kaiser H. Poly(ADP-ribose) polymerase-1 (PARP-1) transcriptionally regulates angiotensin AT2 receptor (AT2R) and AT2R binding protein (ATBP) genes. Biochem Pharmacol. 2009 Jun 15;77(12):1795-805. doi: 10.1016/j.bcp.2009.02.025., Epub 2009 Mar 19. PMID:19344625 doi:10.1016/j.bcp.2009.02.025

[4] Ahel D, Horejsi Z, Wiechens N, Polo SE, Garcia-Wilson E, Ahel I, Flynn H, Skehel M, West SC, Jackson SP, Owen-Hughes T, Boulton SJ. Poly(ADP-ribose)-dependent regulation of DNA repair by the chromatin remodeling enzyme ALC1. Science. 2009 Sep 4;325(5945):1240-3. doi: 10.1126/science.1177321. Epub 2009 Aug, 6. PMID:19661379 doi:10.1126/science.1177321

[5] Chen X, Huan X, Liu Q, Wang Y, He Q, Tan C, Chen Y, Ding J, Xu Y, Miao Z, Yang C. Design and synthesis of 2-(4,5,6,7-tetrahydrothienopyridin-2-yl)-benzoimidazole carboxamides as novel orally efficacious Poly(ADP-ribose)polymerase (PARP) inhibitors. Eur J Med Chem. 2018 Feb 10;145:389-403. doi: 10.1016/j.ejmech.2018.01.018. Epub , 2018 Jan 8. PMID:29335205 doi:https://dx.doi.org/10.1016/j.ejmech.2018.01.018

[1]

[2]

[3]

[4]

[5]

@@ Line 1: / Line 1: @@
-'''Unreleased structure'''
-The entry 5xst is ON HOLD  until Paper Publication
+==novel orally efficacious inhibitors complexed with PARP1==
+<StructureSection load='5xst' size='340' side='right' caption='[[5xst]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[5xst]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5XST OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5XST FirstGlance]. <br>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=8E6:6-fluoranyl-2-(4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl)-1~{H}-benzimidazole-4-carboxamide'>8E6</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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=5xst FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5xst OCA], [http://pdbe.org/5xst PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5xst RCSB], [http://www.ebi.ac.uk/pdbsum/5xst PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5xst ProSAT]</span></td></tr>
+</table>
+== Function ==
+[[http://www.uniprot.org/uniprot/PARP1_HUMAN PARP1_HUMAN]] Involved in the base excision repair (BER) pathway, by catalyzing the poly(ADP-ribosyl)ation of a limited number of acceptor proteins involved in chromatin architecture and in DNA metabolism. This modification follows DNA damages and appears as an obligatory step in a detection/signaling pathway leading to the reparation of DNA strand breaks. Mediates the poly(ADP-ribosyl)ation of APLF and CHFR. Positively regulates the transcription of MTUS1 and negatively regulates the transcription of MTUS2/TIP150. With EEF1A1 and TXK, forms a complex that acts as a T-helper 1 (Th1) cell-specific transcription factor and binds the promoter of IFN-gamma to directly regulate its transcription, and is thus involved importantly in Th1 cytokine production.<ref>PMID:17177976</ref> <ref>PMID:18172500</ref> <ref>PMID:19344625</ref> <ref>PMID:19661379</ref>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+The nuclear protein poly(ADP-ribose) polymerases-1/2 (PARP-1/2) are involved in DNA repair damaged by endogenous or exogenous process. And PARP-1/2 inhibitors have been proved to be clinically efficacious for DNA repair deficient tumors in the past decade. We have developed a series of 4,5,6,7-tetrahydrothienopyridin-2-yl benzimidazole carboxamides as novel and potent PARP-1/2 inhibitors. The best compound resulted from this series is compound 27 which displays excellent PARP-1 and PARP-2 inhibitory activity with IC50 of 18nM and 42nM, respectively. Furthermore, it can selectively kill BRCA2 deficient V-C8 cells with a CC50 of 920nM. In the MDA-MB-436 (BRCA-1 mutant) xenograft model, this compound was well tolerated and showed single-agent activity. Based on the results above, compound 27 has been selected as a lead candidate targeting PARP-1/2 and its preclinical characterization is also underway.
-Authors: Liu, Q.F., Xu, Y.C.
+Design and synthesis of 2-(4,5,6,7-tetrahydrothienopyridin-2-yl)-benzoimidazole carboxamides as novel orally efficacious Poly(ADP-ribose)polymerase (PARP) inhibitors.,Chen X, Huan X, Liu Q, Wang Y, He Q, Tan C, Chen Y, Ding J, Xu Y, Miao Z, Yang C Eur J Med Chem. 2018 Feb 10;145:389-403. doi: 10.1016/j.ejmech.2018.01.018. Epub , 2018 Jan 8. PMID:29335205<ref>PMID:29335205</ref>
-Description: novel orally efficacious inhibitors complexed with PARP1
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-[[Category: Unreleased Structures]]
+</div>
-[[Category: Xu, Y.C]]
+<div class="pdbe-citations 5xst" style="background-color:#fffaf0;"></div>
-[[Category: Liu, Q.F]]
+== References ==
+<references/>
+__TOC__
+</StructureSection>
+[[Category: Liu, Q]]
+[[Category: Xu, Y]]
+[[Category: Complex structure]]
+[[Category: Transferase-transferase inhibitor complex]]

5xst: Difference between revisions

Revision as of 05:29, 25 April 2018

novel orally efficacious inhibitors complexed with PARP1

Structural highlights

Function

Publication Abstract from PubMed

References

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