3BTU

Crystal structure of the super-repressor mutant of Gal80p from Saccharomyces cerevisiae; Gal80(S2) [E351K]


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.228 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

NADP regulates the yeast GAL induction system.

Kumar, P.R.Yu, Y.Sternglanz, R.Johnston, S.A.Joshua-Tor, L.

(2008) Science 319: 1090-1092

  • DOI: 10.1126/science.1151903
  • Primary Citation of Related Structures:  
    3BTU, 3BTV, 3BTS

  • PubMed Abstract: 
  • 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 ...

    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.


    Organizational Affiliation

    Cold Spring Harbor Laboratory, 1 Bungtown Road, Cold Spring Harbor, NY11724, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Galactose/lactose metabolism regulatory protein GAL80A, B, C, D, E, F438Saccharomyces cerevisiaeMutation(s): 1 
Gene Names: GAL80
Find proteins for P04387 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P04387 
Go to UniProtKB:  P04387
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.228 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 495.32α = 90
b = 84.862β = 98.9
c = 66.46γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
CBASSdata collection
HKL-2000data reduction
HKL-2000data scaling
SHARPphasing
PHENIXrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-03-04
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance