1gxr
From Proteopedia
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==Overview== | ==Overview== | ||
| - | Groucho (Gro)/TLE proteins are transcriptional corepressors that lack | + | Groucho (Gro)/TLE proteins are transcriptional corepressors that lack inherent DNA binding but interact with DNA-bound transcription factors and histones, and recruit histone deacetylases. Groucho-mediated repression is essential in embryonic development and involved in regulation of Wnt signaling in adult tissue. We have determined the 1.6 A crystal structure of a C-terminal fragment of human Groucho/TLE1, comprising part of the Ser/Pro-rich region and a seven-bladed beta propeller WD40 repeat domain, implicated in protein-protein interactions. The structure confirms the relationship to the yeast Tup1 corepressor, but reveals important structural differences specific to the metazoan system. Analysis of missense mutations in the C. elegans Groucho homolog UNC-37 identifies sites of interaction with repression effectors, and suggests an induced fit binding site for eh1 domains of Engrailed-type transcription factors. |
==About this Structure== | ==About this Structure== | ||
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[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
| - | [[Category: Pearl, L | + | [[Category: Pearl, L H.]] |
| - | [[Category: Pickles, L | + | [[Category: Pickles, L M.]] |
| - | [[Category: Roe, S | + | [[Category: Roe, S M.]] |
[[Category: CA]] | [[Category: CA]] | ||
[[Category: transcription repressor]] | [[Category: transcription repressor]] | ||
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[[Category: wd40]] | [[Category: wd40]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 12:55:12 2008'' |
Revision as of 10:55, 21 February 2008
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WD40 REGION OF HUMAN GROUCHO/TLE1
Overview
Groucho (Gro)/TLE proteins are transcriptional corepressors that lack inherent DNA binding but interact with DNA-bound transcription factors and histones, and recruit histone deacetylases. Groucho-mediated repression is essential in embryonic development and involved in regulation of Wnt signaling in adult tissue. We have determined the 1.6 A crystal structure of a C-terminal fragment of human Groucho/TLE1, comprising part of the Ser/Pro-rich region and a seven-bladed beta propeller WD40 repeat domain, implicated in protein-protein interactions. The structure confirms the relationship to the yeast Tup1 corepressor, but reveals important structural differences specific to the metazoan system. Analysis of missense mutations in the C. elegans Groucho homolog UNC-37 identifies sites of interaction with repression effectors, and suggests an induced fit binding site for eh1 domains of Engrailed-type transcription factors.
About this Structure
1GXR is a Single protein structure of sequence from Homo sapiens with as ligand. Known structural/functional Site: . Full crystallographic information is available from OCA.
Reference
Crystal structure of the C-terminal WD40 repeat domain of the human Groucho/TLE1 transcriptional corepressor., Pickles LM, Roe SM, Hemingway EJ, Stifani S, Pearl LH, Structure. 2002 Jun;10(6):751-61. PMID:12057191
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