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5ttw

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Revision as of 12:20, 23 September 2020

Crystal Structure of EED in Complex with UNC4859

Structural highlights

5ttw is a 4 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:	3k26
Gene:	EED (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[EED_HUMAN] Polycomb group (PcG) protein. Component of the PRC2/EED-EZH2 complex, which methylates 'Lys-9' and 'Lys-27' of histone H3, leading to transcriptional repression of the affected target gene. Also recognizes 'Lys-26' trimethylated histone H1 with the effect of inhibiting PRC2 complex methyltransferase activity on nucleosomal histone H3 'Lys-27', whereas H3 'Lys-27' recognition has the opposite effect, enabling the propagation of this repressive mark. The PRC2/EED-EZH2 complex may also serve as a recruiting platform for DNA methyltransferases, thereby linking two epigenetic repression systems. Genes repressed by the PRC2/EED-EZH2 complex include HOXC8, HOXA9, MYT1 and CDKN2A.^[1] ^[2] ^[3] ^[4] ^[5] ^[6] ^[7] ^[8] ^[9]

Publication Abstract from PubMed

The function of EED within polycomb repressive complex 2 (PRC2) is mediated by a complex network of protein-protein interactions. Allosteric activation of PRC2 by binding of methylated proteins to the embryonic ectoderm development (EED) aromatic cage is essential for full catalytic activity, but details of this regulation are not fully understood. EED's recognition of the product of PRC2 activity, histone H3 lysine 27 trimethylation (H3K27me3), stimulates PRC2 methyltransferase activity at adjacent nucleosomes leading to H3K27me3 propagation and, ultimately, gene repression. By coupling combinatorial chemistry and structure-based design, we optimized a low-affinity methylated jumonji, AT-rich interactive domain 2 (Jarid2) peptide to a smaller, more potent peptidomimetic ligand (Kd = 1.14 +/- 0.14 muM) of the aromatic cage of EED. Our strategy illustrates the effectiveness of applying combinatorial chemistry to achieve both ligand potency and property optimization. Furthermore, the resulting ligands, UNC5114 and UNC5115, demonstrate that targeted disruption of EED's reader function can lead to allosteric inhibition of PRC2 catalytic activity.

Discovery of Peptidomimetic Ligands of EED as Allosteric Inhibitors of PRC2.,Barnash KD, The J, Norris-Drouin JL, Cholensky SH, Worley BM, Li F, Stuckey JI, Brown PJ, Vedadi M, Arrowsmith CH, Frye SV, James LI ACS Comb Sci. 2017 Feb 22. doi: 10.1021/acscombsci.6b00174. PMID:28165227^[10]

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

References

↑ Sewalt RG, van der Vlag J, Gunster MJ, Hamer KM, den Blaauwen JL, Satijn DP, Hendrix T, van Driel R, Otte AP. Characterization of interactions between the mammalian polycomb-group proteins Enx1/EZH2 and EED suggests the existence of different mammalian polycomb-group protein complexes. Mol Cell Biol. 1998 Jun;18(6):3586-95. PMID:9584199
↑ van der Vlag J, Otte AP. Transcriptional repression mediated by the human polycomb-group protein EED involves histone deacetylation. Nat Genet. 1999 Dec;23(4):474-8. PMID:10581039 doi:10.1038/70602
↑ Bracken AP, Pasini D, Capra M, Prosperini E, Colli E, Helin K. EZH2 is downstream of the pRB-E2F pathway, essential for proliferation and amplified in cancer. EMBO J. 2003 Oct 15;22(20):5323-35. PMID:14532106 doi:10.1093/emboj/cdg542
↑ Pasini D, Bracken AP, Jensen MR, Lazzerini Denchi E, Helin K. Suz12 is essential for mouse development and for EZH2 histone methyltransferase activity. EMBO J. 2004 Oct 13;23(20):4061-71. Epub 2004 Sep 23. PMID:15385962 doi:10.1038/sj.emboj.7600402
↑ Kirmizis A, Bartley SM, Kuzmichev A, Margueron R, Reinberg D, Green R, Farnham PJ. Silencing of human polycomb target genes is associated with methylation of histone H3 Lys 27. Genes Dev. 2004 Jul 1;18(13):1592-605. PMID:15231737 doi:10.1101/gad.1200204
↑ Cao R, Zhang Y. SUZ12 is required for both the histone methyltransferase activity and the silencing function of the EED-EZH2 complex. Mol Cell. 2004 Jul 2;15(1):57-67. PMID:15225548 doi:10.1016/j.molcel.2004.06.020
↑ Vire E, Brenner C, Deplus R, Blanchon L, Fraga M, Didelot C, Morey L, Van Eynde A, Bernard D, Vanderwinden JM, Bollen M, Esteller M, Di Croce L, de Launoit Y, Fuks F. The Polycomb group protein EZH2 directly controls DNA methylation. Nature. 2006 Feb 16;439(7078):871-4. Epub 2005 Dec 14. PMID:16357870 doi:10.1038/nature04431
↑ Sarma K, Margueron R, Ivanov A, Pirrotta V, Reinberg D. Ezh2 requires PHF1 to efficiently catalyze H3 lysine 27 trimethylation in vivo. Mol Cell Biol. 2008 Apr;28(8):2718-31. doi: 10.1128/MCB.02017-07. Epub 2008 Feb, 19. PMID:18285464 doi:10.1128/MCB.02017-07
↑ Xu C, Bian C, Yang W, Galka M, Ouyang H, Chen C, Qiu W, Liu H, Jones AE, Mackenzie F, Pan P, Li SS, Wang H, Min J. Binding of different histone marks differentially regulates the activity and specificity of polycomb repressive complex 2 (PRC2). Proc Natl Acad Sci U S A. 2010 Oct 25. PMID:20974918 doi:10.1073/pnas.1008937107
↑ Barnash KD, The J, Norris-Drouin JL, Cholensky SH, Worley BM, Li F, Stuckey JI, Brown PJ, Vedadi M, Arrowsmith CH, Frye SV, James LI. Discovery of Peptidomimetic Ligands of EED as Allosteric Inhibitors of PRC2. ACS Comb Sci. 2017 Feb 22. doi: 10.1021/acscombsci.6b00174. PMID:28165227 doi:http://dx.doi.org/10.1021/acscombsci.6b00174

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/5ttw"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of EED in Complex with UNC4859==
-<StructureSection load='5ttw' size='340' side='right' caption='[[5ttw]], [[Resolution|resolution]] 1.74&Aring;' scene=''>
+<StructureSection load='5ttw' size='340' side='right'caption='[[5ttw]], [[Resolution|resolution]] 1.74&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5ttw]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5TTW OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5TTW FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5ttw]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5TTW OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5TTW FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=UNX:UNKNOWN+ATOM+OR+ION'>UNX</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=UNX:UNKNOWN+ATOM+OR+ION'>UNX</scene></td></tr>
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=M3L:N-TRIMETHYLLYSINE'>M3L</scene>, <scene name='pdbligand=NLW:L-LEUCINAMIDE'>NLW</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3k26|3k26]]</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=5ttw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ttw OCA], [http://pdbe.org/5ttw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ttw RCSB], [http://www.ebi.ac.uk/pdbsum/5ttw PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ttw ProSAT]</span></td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">EED ([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://proteopedia.org/fgij/fg.htm?mol=5ttw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ttw OCA], [http://pdbe.org/5ttw PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ttw RCSB], [http://www.ebi.ac.uk/pdbsum/5ttw PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ttw ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 20: / Line 21: @@
 </div>
 <div class="pdbe-citations 5ttw" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Polycomb|Polycomb]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
+[[Category: Human]]
+[[Category: Large Structures]]
 [[Category: Arrowsmith, C H]]
 [[Category: Barnash, K D]]

5ttw

From Proteopedia

Revision as of 12:20, 23 September 2020

Crystal Structure of EED in Complex with UNC4859

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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