2uxn

From Proteopedia

(Difference between revisions)

Revision as of 08:13, 12 September 2018

Structural Basis of Histone Demethylation by LSD1 Revealed by Suicide Inactivation

Structural highlights

2uxn is a 3 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:	2b2t, 2b2u, 2b2v, 2b2w, 2c1j, 2c1n, 2cv5, 2com, 2h94, 2iw5, 2uxx
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[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.^[1] ^[2] ^[3] ^[4] ^[5]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Histone methylation regulates diverse chromatin-templated processes, including transcription. The recent discovery of the first histone lysine-specific demethylase (LSD1) has changed the long-held view that histone methylation is a permanent epigenetic mark. LSD1 is a flavin adenine dinucleotide (FAD)-dependent amine oxidase that demethylates histone H3 Lys4 (H3-K4). However, the mechanism by which LSD1 achieves its substrate specificity is unclear. We report the crystal structure of human LSD1 with a propargylamine-derivatized H3 peptide covalently tethered to FAD. H3 adopts three consecutive gamma-turns, enabling an ideal side chain spacing that places its N terminus into an anionic pocket and positions methyl-Lys4 near FAD for catalysis. The LSD1 active site cannot productively accommodate more than three residues on the N-terminal side of the methyllysine, explaining its H3-K4 specificity. The unusual backbone conformation of LSD1-bound H3 suggests a strategy for designing potent LSD1 inhibitors with therapeutic potential.

Structural basis of histone demethylation by LSD1 revealed by suicide inactivation.,Yang M, Culhane JC, Szewczuk LM, Gocke CB, Brautigam CA, Tomchick DR, Machius M, Cole PA, Yu H Nat Struct Mol Biol. 2007 Jun;14(6):535-9. Epub 2007 May 27. PMID:17529991^[6]

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

References

↑ Hakimi MA, Bochar DA, Chenoweth J, Lane WS, Mandel G, Shiekhattar R. A core-BRAF35 complex containing histone deacetylase mediates repression of neuronal-specific genes. Proc Natl Acad Sci U S A. 2002 May 28;99(11):7420-5. PMID:12032298 doi:10.1073/pnas.112008599
↑ Shi Y, Lan F, Matson C, Mulligan P, Whetstine JR, Cole PA, Casero RA, Shi Y. Histone demethylation mediated by the nuclear amine oxidase homolog LSD1. Cell. 2004 Dec 29;119(7):941-53. PMID:15620353 doi:http://dx.doi.org/10.1016/j.cell.2004.12.012
↑ Metzger E, Wissmann M, Yin N, Muller JM, Schneider R, Peters AH, Gunther T, Buettner R, Schule R. LSD1 demethylates repressive histone marks to promote androgen-receptor-dependent transcription. Nature. 2005 Sep 15;437(7057):436-9. Epub 2005 Aug 3. PMID:16079795 doi:http://dx.doi.org/10.1038/nature04020
↑ Huang J, Sengupta R, Espejo AB, Lee MG, Dorsey JA, Richter M, Opravil S, Shiekhattar R, Bedford MT, Jenuwein T, Berger SL. p53 is regulated by the lysine demethylase LSD1. Nature. 2007 Sep 6;449(7158):105-8. PMID:17805299 doi:nature06092
↑ Metzger E, Imhof A, Patel D, Kahl P, Hoffmeyer K, Friedrichs N, Muller JM, Greschik H, Kirfel J, Ji S, Kunowska N, Beisenherz-Huss C, Gunther T, Buettner R, Schule R. Phosphorylation of histone H3T6 by PKCbeta(I) controls demethylation at histone H3K4. Nature. 2010 Apr 1;464(7289):792-6. doi: 10.1038/nature08839. Epub 2010 Mar 14. PMID:20228790 doi:http://dx.doi.org/10.1038/nature08839
↑ Yang M, Culhane JC, Szewczuk LM, Gocke CB, Brautigam CA, Tomchick DR, Machius M, Cole PA, Yu H. Structural basis of histone demethylation by LSD1 revealed by suicide inactivation. Nat Struct Mol Biol. 2007 Jun;14(6):535-9. Epub 2007 May 27. PMID:17529991 doi:http://dx.doi.org/10.1038/nsmb1255

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2uxn"

@@ Line 1: / Line 1: @@
-==STRUCTURAL BASIS OF HISTONE DEMETHYLATION BY LSD1 REVEALED BY SUICIDE INACTIVATION==
+==Structural Basis of Histone Demethylation by LSD1 Revealed by Suicide Inactivation==
 <StructureSection load='2uxn' size='340' side='right' caption='[[2uxn]], [[Resolution|resolution]] 2.72&Aring;' scene=''>
 == Structural highlights ==
@@ Line 6: / Line 7: @@
 <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=LYP:N~6~-METHYL-N~6~-PROPYL-L-LYSINE'>LYP</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2b2t|2b2t]], [[2b2u|2b2u]], [[2b2v|2b2v]], [[2b2w|2b2w]], [[2c1j|2c1j]], [[2c1n|2c1n]], [[2cv5|2cv5]], [[2com|2com]], [[2h94|2h94]], [[2iw5|2iw5]], [[2uxx|2uxx]]</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=2uxn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2uxn OCA], [http://pdbe.org/2uxn PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2uxn RCSB], [http://www.ebi.ac.uk/pdbsum/2uxn 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=2uxn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2uxn OCA], [http://pdbe.org/2uxn PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2uxn RCSB], [http://www.ebi.ac.uk/pdbsum/2uxn PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2uxn ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ux/2uxn_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ux/2uxn_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

2uxn

From Proteopedia

Revision as of 08:13, 12 September 2018

Structural Basis of Histone Demethylation by LSD1 Revealed by Suicide Inactivation

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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