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1md0

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[[Image:1md0.gif|left|200px]]
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{{STRUCTURE_1md0| PDB=1md0 | SCENE= }}
{{STRUCTURE_1md0| PDB=1md0 | SCENE= }}
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'''CRYSTAL STRUCTURE OF AN INHIBITED FRAGMENT OF Ets-1'''
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===CRYSTAL STRUCTURE OF AN INHIBITED FRAGMENT OF Ets-1===
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==Overview==
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The DNA-binding activity of the eukaryotic transcription factor Ets-1 (E26 avian erythroblastosis virus oncogene-E twenty-six) is negatively regulated by inhibitory regions that flank the ETS domain. Based on the results of solution studies, these N- and C-terminal inhibitory regions have been proposed to pack against the ETS domain and form an autoinhibitory module whose N terminus partially unfolds upon binding of Ets-1 to DNA. Mutations that disrupt autoinhibition of DNA binding also cause a structural change in the inhibitory region. We report here a crystallographic study of fragments of Ets-1 that provide structural details of the inhibitory module and the structural transition that accompanies DNA binding. The structures of free and DNA-bound Ets-1 fragments containing the ETS domain and the inhibitory regions confirm that the N-terminal inhibitory region contains two alpha-helices one of which unfolds upon Ets-1 binding to DNA. The observations from the crystal structure, coupled with mutagenesis experiments, allow us to propose a model for the inhibited form of Ets-1 and lend insight into the flexible interaction between Ets-1 and the acute myeloid leukemia 1 protein, AML1 (RUNX1).
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(as it appears on PubMed at http://www.pubmed.gov), where 12221090 is the PubMed ID number.
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{{ABSTRACT_PUBMED_12221090}}
==About this Structure==
==About this Structure==
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[[Category: Autoinhibition]]
[[Category: Autoinhibition]]
[[Category: Transcription factor]]
[[Category: Transcription factor]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 00:53:58 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 2 23:42:30 2008''

Revision as of 20:42, 2 July 2008

Template:STRUCTURE 1md0

CRYSTAL STRUCTURE OF AN INHIBITED FRAGMENT OF Ets-1

Template:ABSTRACT PUBMED 12221090

About this Structure

1MD0 is a Single protein structure of sequence from Mus musculus. Full crystallographic information is available from OCA.

Reference

Structural analysis of the autoinhibition of Ets-1 and its role in protein partnerships., Garvie CW, Pufall MA, Graves BJ, Wolberger C, J Biol Chem. 2002 Nov 22;277(47):45529-36. Epub 2002 Sep 6. PMID:12221090

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