View source for 3zn1


==LSD1-CoREST in complex with PRLYLV peptide==
<StructureSection load='3zn1' size='340' side='right'caption='[[3zn1]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3zn1]] is a 3 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=3ZN1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3ZN1 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]] 3.1&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</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=3zn1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zn1 OCA], [https://pdbe.org/3zn1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3zn1 RCSB], [https://www.ebi.ac.uk/pdbsum/3zn1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3zn1 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/KDM1A_HUMAN KDM1A_HUMAN] Histone demethylase that demethylates both 'Lys-4' (H3K4me) and 'Lys-9' (H3K9me) of histone H3, thereby acting as a coactivator or a corepressor, depending on the context. Acts by oxidizing the substrate by FAD to generate the corresponding imine that is subsequently hydrolyzed. Acts as a corepressor by mediating demethylation of H3K4me, a specific tag for epigenetic transcriptional activation. Demethylates both mono- (H3K4me1) and di-methylated (H3K4me2) H3K4me. May play a role in the repression of neuronal genes. Alone, it is unable to demethylate H3K4me on nucleosomes and requires the presence of RCOR1/CoREST to achieve such activity. Also acts as a coactivator of androgen receptor (ANDR)-dependent transcription, by being recruited to ANDR target genes and mediating demethylation of H3K9me, a specific tag for epigenetic transcriptional repression. The presence of PRKCB in ANDR-containing complexes, which mediates phosphorylation of 'Thr-6' of histone H3 (H3T6ph), a specific tag that prevents demethylation H3K4me, prevents H3K4me demethylase activity of KDM1A. Demethylates di-methylated 'Lys-370' of p53/TP53 which prevents interaction of p53/TP53 with TP53BP1 and represses p53/TP53-mediated transcriptional activation. Demethylates and stabilizes the DNA methylase DNMT1. Required for gastrulation during embryogenesis. Component of a RCOR/GFI/KDM1A/HDAC complex that suppresses, via histone deacetylase (HDAC) recruitment, a number of genes implicated in multilineage blood cell development.<ref>PMID:12032298</ref> <ref>PMID:15620353</ref> <ref>PMID:16079795</ref> <ref>PMID:17805299</ref> <ref>PMID:20228790</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The combinatorial assembly of protein complexes is at the heart of chromatin biology. Lysine demethylase LSD1(KDM1A)/CoREST beautifully exemplifies this concept. The active site of the enzyme tightly associates to the N-terminal domain of transcription factors of the SNAIL1 family, which therefore can competitively inhibit the binding of the N-terminal tail of the histone substrate. Our enzymatic, crystallographic, spectroscopic, and computational studies reveal that LSD1/CoREST can bind to a hexapeptide derived from the SNAIL sequence through recognition of a positively charged alpha-helical turn that forms upon binding to the enzyme. Variations in sequence and length of this six amino acid ligand modulate affinities enabling the same binding site to differentially interact with proteins that exert distinct biological functions. The discovered short peptide inhibitors exhibit antiproliferative activities and lay the foundation for the development of peptidomimetic small molecule inhibitors of LSD1.

PROTEIN RECOGNITION BY SMALL PEPTIDE REVERSIBLE INHIBITORS OF THE CHROMATIN-MODIFYING LSD1/CoREST LYSINE DEMETHYLASE.,Tortorici M, Borrello MT, Tardugno M, Chiarelli LR, Pilotto S, Ciossani G, Vellore NA, Bailey SG, Cowan J, O'Connell M, Crabb SJ, Packham GK, Mai A, Baron R, Ganesan A, Mattevi A ACS Chem Biol. 2013 May 30. PMID:23721412<ref>PMID:23721412</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3zn1" style="background-color:#fffaf0;"></div>

==See Also==
*[[Lysine-specific histone demethylase 3D structures|Lysine-specific histone demethylase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Baron R]]
[[Category: Borrello MT]]
[[Category: Chiarelli LR]]
[[Category: Ciossani G]]
[[Category: Cowan J]]
[[Category: Ganesan A]]
[[Category: Mai A]]
[[Category: Mattevi A]]
[[Category: O'Connell M]]
[[Category: Pilotto S]]
[[Category: Tardugno M]]
[[Category: Tortorici M]]
[[Category: Vellore NA]]