This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

3njy

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 01:08, 5 August 2016

Crystal structure of JMJD2A complexed with 5-carboxy-8-hydroxyquinoline

Structural highlights

3njy 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:	2wwj, 2vd7, 2gp5, 2gp3, 2gfa, 2gf7
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[KDM4A_HUMAN] Histone demethylase that specifically demethylates 'Lys-9' and 'Lys-36' residues of histone H3, thereby playing a central role in histone code. Does not demethylate histone H3 'Lys-4', H3 'Lys-27' nor H4 'Lys-20'. Demethylates trimethylated H3 'Lys-9' and H3 'Lys-36' residue, while it has no activity on mono- and dimethylated residues. Demethylation of Lys residue generates formaldehyde and succinate. Participates in transcriptional repression of ASCL2 and E2F-responsive promoters via the recruitment of histone deacetylases and NCOR1, respectively.^[1] ^[2] ^[3] Isoform 2: Crucial for muscle differentiation, promotes transcriptional activation of the Myog gene by directing the removal of repressive chromatin marks at its promoter. Lacks the N-terminal demethylase domain.^[4] ^[5] ^[6]

Publication Abstract from PubMed

BACKGROUND: Small molecule modulators of epigenetic processes are currently sought as basic probes for biochemical mechanisms, and as starting points for development of therapeutic agents. N(epsilon)-Methylation of lysine residues on histone tails is one of a number of post-translational modifications that together enable transcriptional regulation. Histone lysine demethylases antagonize the action of histone methyltransferases in a site- and methylation state-specific manner. N(epsilon)-Methyllysine demethylases that use 2-oxoglutarate as co-factor are associated with diverse human diseases, including cancer, inflammation and X-linked mental retardation; they are proposed as targets for the therapeutic modulation of transcription. There are few reports on the identification of templates that are amenable to development as potent inhibitors in vivo and large diverse collections have yet to be exploited for the discovery of demethylase inhibitors. PRINCIPAL FINDINGS: High-throughput screening of a approximately 236,000-member collection of diverse molecules arrayed as dilution series was used to identify inhibitors of the JMJD2 (KDM4) family of 2-oxoglutarate-dependent histone demethylases. Initial screening hits were prioritized by a combination of cheminformatics, counterscreening using a coupled assay enzyme, and orthogonal confirmatory detection of inhibition by mass spectrometric assays. Follow-up studies were carried out on one of the series identified, 8-hydroxyquinolines, which were shown by crystallographic analyses to inhibit by binding to the active site Fe(II) and to modulate demethylation at the H3K9 locus in a cell-based assay. CONCLUSIONS: These studies demonstrate that diverse compound screening can yield novel inhibitors of 2OG dependent histone demethylases and provide starting points for the development of potent and selective agents to interrogate epigenetic regulation.

Quantitative high-throughput screening identifies 8-hydroxyquinolines as cell-active histone demethylase inhibitors.,King ON, Li XS, Sakurai M, Kawamura A, Rose NR, Ng SS, Quinn AM, Rai G, Mott BT, Beswick P, Klose RJ, Oppermann U, Jadhav A, Heightman TD, Maloney DJ, Schofield CJ, Simeonov A PLoS One. 2010 Nov 23;5(11):e15535. PMID:21124847^[7]

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

References

↑ Zhang D, Yoon HG, Wong J. JMJD2A is a novel N-CoR-interacting protein and is involved in repression of the human transcription factor achaete scute-like homologue 2 (ASCL2/Hash2). Mol Cell Biol. 2005 Aug;25(15):6404-14. PMID:16024779 doi:http://dx.doi.org/25/15/6404
↑ Whetstine JR, Nottke A, Lan F, Huarte M, Smolikov S, Chen Z, Spooner E, Li E, Zhang G, Colaiacovo M, Shi Y. Reversal of histone lysine trimethylation by the JMJD2 family of histone demethylases. Cell. 2006 May 5;125(3):467-81. Epub 2006 Apr 6. PMID:16603238 doi:10.1016/j.cell.2006.03.028
↑ Verrier L, Escaffit F, Chailleux C, Trouche D, Vandromme M. A new isoform of the histone demethylase JMJD2A/KDM4A is required for skeletal muscle differentiation. PLoS Genet. 2011 Jun;7(6):e1001390. doi: 10.1371/journal.pgen.1001390. Epub 2011 , Jun 2. PMID:21694756 doi:http://dx.doi.org/10.1371/journal.pgen.1001390
↑ Zhang D, Yoon HG, Wong J. JMJD2A is a novel N-CoR-interacting protein and is involved in repression of the human transcription factor achaete scute-like homologue 2 (ASCL2/Hash2). Mol Cell Biol. 2005 Aug;25(15):6404-14. PMID:16024779 doi:http://dx.doi.org/25/15/6404
↑ Whetstine JR, Nottke A, Lan F, Huarte M, Smolikov S, Chen Z, Spooner E, Li E, Zhang G, Colaiacovo M, Shi Y. Reversal of histone lysine trimethylation by the JMJD2 family of histone demethylases. Cell. 2006 May 5;125(3):467-81. Epub 2006 Apr 6. PMID:16603238 doi:10.1016/j.cell.2006.03.028
↑ Verrier L, Escaffit F, Chailleux C, Trouche D, Vandromme M. A new isoform of the histone demethylase JMJD2A/KDM4A is required for skeletal muscle differentiation. PLoS Genet. 2011 Jun;7(6):e1001390. doi: 10.1371/journal.pgen.1001390. Epub 2011 , Jun 2. PMID:21694756 doi:http://dx.doi.org/10.1371/journal.pgen.1001390
↑ King ON, Li XS, Sakurai M, Kawamura A, Rose NR, Ng SS, Quinn AM, Rai G, Mott BT, Beswick P, Klose RJ, Oppermann U, Jadhav A, Heightman TD, Maloney DJ, Schofield CJ, Simeonov A. Quantitative high-throughput screening identifies 8-hydroxyquinolines as cell-active histone demethylase inhibitors. PLoS One. 2010 Nov 23;5(11):e15535. PMID:21124847 doi:10.1371/journal.pone.0015535

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/3njy"

@@ Line 1: / Line 1: @@
 ==Crystal structure of JMJD2A complexed with 5-carboxy-8-hydroxyquinoline==
 <StructureSection load='3njy' size='340' side='right' caption='[[3njy]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3njy]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3NJY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3NJY FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3njy]] is a 2 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=3NJY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3NJY FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=8XQ:8-HYDROXYQUINOLINE-5-CARBOXYLIC+ACID'>8XQ</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2wwj|2wwj]], [[2vd7|2vd7]], [[2gp5|2gp5]], [[2gp3|2gp3]], [[2gfa|2gfa]], [[2gf7|2gf7]]</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=3njy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3njy OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3njy RCSB], [http://www.ebi.ac.uk/pdbsum/3njy 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=3njy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3njy OCA], [http://pdbe.org/3njy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3njy RCSB], [http://www.ebi.ac.uk/pdbsum/3njy PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3njy ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 17: / Line 18: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3njy" style="background-color:#fffaf0;"></div>
 ==See Also==
-*[[Jumonji domain-containing protein 2A|Jumonji domain-containing protein 2A]]
+*[[Jumonji domain-containing protein|Jumonji domain-containing protein]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Clifton, I J]]
 [[Category: Heightman, T D]]

3njy

From Proteopedia

Revision as of 01:08, 5 August 2016

Crystal structure of JMJD2A complexed with 5-carboxy-8-hydroxyquinoline

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox