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2iw5

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[[Image:2iw5.gif|left|200px]]
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{{STRUCTURE_2iw5| PDB=2iw5 | SCENE= }}
{{STRUCTURE_2iw5| PDB=2iw5 | SCENE= }}
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'''STRUCTURAL BASIS FOR COREST-DEPENDENT DEMETHYLATION OF NUCLEOSOMES BY THE HUMAN LSD1 HISTONE DEMETHYLASE'''
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===STRUCTURAL BASIS FOR COREST-DEPENDENT DEMETHYLATION OF NUCLEOSOMES BY THE HUMAN LSD1 HISTONE DEMETHYLASE===
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==Overview==
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Histone methylation regulates diverse chromatin-templated processes, including transcription. Many transcriptional corepressor complexes contain lysine-specific demethylase 1 (LSD1) and CoREST that collaborate to demethylate mono- and dimethylated H3-K4 of nucleosomes. Here, we report the crystal structure of the LSD1-CoREST complex. LSD1-CoREST forms an elongated structure with a long stalk connecting the catalytic domain of LSD1 and the CoREST SANT2 domain. LSD1 recognizes a large segment of the H3 tail through a deep, negatively charged pocket at the active site and possibly a shallow groove on its surface. CoREST SANT2 interacts with DNA. Disruption of the SANT2-DNA interaction diminishes CoREST-dependent demethylation of nucleosomes by LSD1. The shape and dimension of LSD1-CoREST suggest its bivalent binding to nucleosomes, allowing efficient H3-K4 demethylation. This spatially separated, multivalent nucleosome binding mode may apply to other chromatin-modifying enzymes that generally contain multiple nucleosome binding modules.
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The line below this paragraph, {{ABSTRACT_PUBMED_16885027}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 16885027 is the PubMed ID number.
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{{ABSTRACT_PUBMED_16885027}}
==About this Structure==
==About this Structure==
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[[Category: Transcription]]
[[Category: Transcription]]
[[Category: Transcription regulation]]
[[Category: Transcription regulation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 07:58:08 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 01:15:55 2008''

Revision as of 22:16, 27 July 2008

Image:2iw5.png

Template:STRUCTURE 2iw5

STRUCTURAL BASIS FOR COREST-DEPENDENT DEMETHYLATION OF NUCLEOSOMES BY THE HUMAN LSD1 HISTONE DEMETHYLASE

Template:ABSTRACT PUBMED 16885027

About this Structure

2IW5 is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structural basis for CoREST-dependent demethylation of nucleosomes by the human LSD1 histone demethylase., Yang M, Gocke CB, Luo X, Borek D, Tomchick DR, Machius M, Otwinowski Z, Yu H, Mol Cell. 2006 Aug 4;23(3):377-87. PMID:16885027

Page seeded by OCA on Mon Jul 28 01:15:55 2008

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