View source for 6bh3


==LINKED KDM5A JMJ DOMAIN BOUND TO THE INHIBITOR (S)-N-(1-(3-isopropyl-1H-pyrazole-5-carbonyl)pyrrolidin-3-yl)cyclopropanecarboxamide (Compound N55)==
<StructureSection load='6bh3' size='340' side='right'caption='[[6bh3]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6bh3]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6BH3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6BH3 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.701&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=DQJ:N-{(3S)-1-[5-(propan-2-yl)-1H-pyrazole-3-carbonyl]pyrrolidin-3-yl}cyclopropanecarboxamide'>DQJ</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6bh3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6bh3 OCA], [https://pdbe.org/6bh3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6bh3 RCSB], [https://www.ebi.ac.uk/pdbsum/6bh3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6bh3 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/KDM5A_HUMAN KDM5A_HUMAN] Histone demethylase that specifically demethylates 'Lys-4' of histone H3, thereby playing a central role in histone code. Does not demethylate histone H3 'Lys-9', H3 'Lys-27', H3 'Lys-36', H3 'Lys-79' or H4 'Lys-20'. Demethylates trimethylated and dimethylated but not monomethylated H3 'Lys-4'. May stimulate transcription mediated by nuclear receptors. May be involved in transcriptional regulation of Hox proteins during cell differentiation. May participate in transcriptional repression of cytokines such as CXCL12. Plays a role in the regulation of the circadian rhythm and in maintaining the normal periodicity of the circadian clock. In a histone demethylase-independent manner, acts as a coactivator of the CLOCK-ARNTL/BMAL1-mediated transcriptional activation of PER1/2 and other clock-controlled genes and increases histone acetylation at PER1/2 promoters by inhibiting the activity of HDAC1 (By similarity).[UniProtKB:Q3UXZ9]<ref>PMID:11358960</ref> <ref>PMID:15949438</ref> <ref>PMID:17320160</ref> <ref>PMID:17320161</ref> <ref>PMID:17320163</ref> 
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== Publication Abstract from PubMed ==
Isomers of chiral drugs can exhibit marked differences in biological activities. We studied the binding and inhibitory activities of 12 compounds against KDM5A. Among them are two pairs of enantiomers representing two distinct inhibitor chemotypes, namely, ( R)- and ( S)-2-((2-chlorophenyl)(2-(piperidin-1-yl)ethoxy)methyl)-1 H-pyrrolo[3,2- b]pyridine-7-carboxylic acid (compounds N51 and N52) and ( R) - and ( S) -N-(1-(3-isopropyl-1 H-pyrazole-5-carbonyl)pyrrolidin-3-yl)cyclopropanecarboxamide (compounds N54 and N55). In vitro, the S enantiomer of the N51/N52 pair (N52) and the R enantiomer of the N54/N55 pair (N54) exhibited about 4- to 5-fold greater binding affinity. The more potent enzyme inhibition of KDM5A by the R-isoform for the cell-permeable N54/N55 pair translated to differences in growth inhibitory activity. We determined structures of the KDM5A catalytic domain in complex with all 12 inhibitors, which revealed the interactions (or lack thereof) responsible for the differences in binding affinity. These results provide insights to guide improvements in binding potency and avenues for development of cell permeable inhibitors of the KDM5 family.

Insights into the Action of Inhibitor Enantiomers against Histone Lysine Demethylase 5A.,Horton JR, Liu X, Wu L, Zhang K, Shanks J, Zhang X, Rai G, Mott BT, Jansen DJ, Kales SC, Henderson MJ, Pohida K, Fang Y, Hu X, Jadhav A, Maloney DJ, Hall MD, Simeonov A, Fu H, Vertino PM, Yan Q, Cheng X J Med Chem. 2018 Mar 23. doi: 10.1021/acs.jmedchem.8b00261. PMID:29537847<ref>PMID:29537847</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 6bh3" style="background-color:#fffaf0;"></div>

==See Also==
*[[Jumonji domain-containing protein 3D structures|Jumonji domain-containing protein 3D structures]]
*[[Lysine-specific histone demethylase 3D structures|Lysine-specific histone demethylase 3D structures]]
*[[Retinoblastoma-binding protein 3D structures|Retinoblastoma-binding protein 3D structures]]
== References ==
<references/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Cheng X]]
[[Category: Horton JR]]