2c1n

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{{STRUCTURE_2c1n| PDB=2c1n | SCENE= }}
{{STRUCTURE_2c1n| PDB=2c1n | SCENE= }}
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'''MOLECULAR BASIS FOR THE RECOGNITION OF PHOSPHORYLATED AND PHOSPHOACETYLATED HISTONE H3 BY 14-3-3'''
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===MOLECULAR BASIS FOR THE RECOGNITION OF PHOSPHORYLATED AND PHOSPHOACETYLATED HISTONE H3 BY 14-3-3===
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==Overview==
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Phosphorylation of histone H3 is implicated in transcriptional activation and chromosome condensation, but its immediate molecular function has remained obscure. By affinity chromatography of nuclear extracts against modified H3 tail peptides, we identified 14-3-3 isoforms as proteins that bind these tails in a strictly phosphorylation-dependent manner. Acetylation of lysines 9 and 14 does not impede 14-3-3 binding to serine 10-phosphorylated H3 tails. In vivo, 14-3-3 is inducibly recruited to c-fos and c-jun nucleosomes upon gene activation, concomitant with H3 phosphoacetylation. We have determined the structures of 14-3-3zeta complexed with serine 10-phosphorylated or phosphoacetylated H3 peptides. These reveal a distinct mode of 14-3-3/phosphopeptide binding and provide a structural understanding for the lack of effect of acetylation at lysines 9 and 14 on this interaction. 14-3-3 isoforms thus represent a class of proteins that mediate the effect of histone phosphorylation at inducible genes.
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{{ABSTRACT_PUBMED_16246723}}
==About this Structure==
==About this Structure==
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[[Category: Phosphorylation]]
[[Category: Phosphorylation]]
[[Category: Signaling protein]]
[[Category: Signaling protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 21:06:35 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 06:03:45 2008''

Revision as of 03:03, 28 July 2008

Image:2c1n.png

Template:STRUCTURE 2c1n

MOLECULAR BASIS FOR THE RECOGNITION OF PHOSPHORYLATED AND PHOSPHOACETYLATED HISTONE H3 BY 14-3-3

Template:ABSTRACT PUBMED 16246723

About this Structure

2C1N is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Molecular basis for the recognition of phosphorylated and phosphoacetylated histone h3 by 14-3-3., Macdonald N, Welburn JP, Noble ME, Nguyen A, Yaffe MB, Clynes D, Moggs JG, Orphanides G, Thomson S, Edmunds JW, Clayton AL, Endicott JA, Mahadevan LC, Mol Cell. 2005 Oct 28;20(2):199-211. PMID:16246723

Page seeded by OCA on Mon Jul 28 06:03:45 2008

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