3bts

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{{STRUCTURE_3bts| PDB=3bts | SCENE= }}
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'''Crystal structure of a ternary complex of the transcriptional repressor Gal80p (Gal80S0 [G301R]) and the acidic activation domain of Gal4p (aa 854-874) from Saccharomyces cerevisiae with NAD'''
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===Crystal structure of a ternary complex of the transcriptional repressor Gal80p (Gal80S0 [G301R]) and the acidic activation domain of Gal4p (aa 854-874) from Saccharomyces cerevisiae with NAD===
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==Overview==
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Transcriptional regulation of the galactose-metabolizing genes in Saccharomyces cerevisiae depends on three core proteins: Gal4p, the transcriptional activator that binds to upstream activating DNA sequences (UAS(GAL)); Gal80p, a repressor that binds to the carboxyl terminus of Gal4p and inhibits transcription; and Gal3p, a cytoplasmic transducer that, upon binding galactose and adenosine 5'-triphosphate, relieves Gal80p repression. The current model of induction relies on Gal3p sequestering Gal80p in the cytoplasm. However, the rapid induction of this system implies that there is a missing factor. Our structure of Gal80p in complex with a peptide from the carboxyl-terminal activation domain of Gal4p reveals the existence of a dinucleotide that mediates the interaction between the two. Biochemical and in vivo experiments suggests that nicotinamide adenine dinucleotide phosphate (NADP) plays a key role in the initial induction event.
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{{ABSTRACT_PUBMED_18292341}}
==About this Structure==
==About this Structure==
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[[Category: Transcription regulation]]
[[Category: Transcription regulation]]
[[Category: Zinc]]
[[Category: Zinc]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 21:05:32 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 10:08:47 2008''

Revision as of 07:08, 28 July 2008

Image:3bts.png


PDB ID 3bts

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3bts, resolution 2.70Å ()
Ligands:
Gene: GAL80 (Saccharomyces cerevisiae)
Related: 3btu, 3btv
Resources: FirstGlance, OCA, RCSB, PDBsum
Coordinates: save as pdb, mmCIF, xml



Crystal structure of a ternary complex of the transcriptional repressor Gal80p (Gal80S0 [G301R]) and the acidic activation domain of Gal4p (aa 854-874) from Saccharomyces cerevisiae with NAD

Template:ABSTRACT PUBMED 18292341

About this Structure

3BTS is a Protein complex structure of sequences from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.

Reference

NADP regulates the yeast GAL induction system., Kumar PR, Yu Y, Sternglanz R, Johnston SA, Joshua-Tor L, Science. 2008 Feb 22;319(5866):1090-2. PMID:18292341

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