1SV0

Crystal Structure Of Yan-SAM/Mae-SAM Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.07 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.232 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Derepression by depolymerization; structural insights into the regulation of yan by mae.

Qiao, F.Song, H.Kim, C.A.Sawaya, M.R.Hunter, J.B.Gingery, M.Rebay, I.Courey, A.J.Bowie, J.U.

(2004) Cell 118: 163-173

  • DOI: 10.1016/j.cell.2004.07.010
  • Primary Citation of Related Structures:  
    1SV0, 1SV4

  • PubMed Abstract: 
  • Yan, an ETS family transcriptional repressor, is regulated by receptor tyrosine kinase signaling via the Ras/MAPK pathway. Phosphorylation and downregulation of Yan is facilitated by a protein called Mae. Yan and Mae interact through their SAM domains. We find that repression by Yan requires the formation of a higher order structure mediated by Yan-SAM polymerization ...

    Yan, an ETS family transcriptional repressor, is regulated by receptor tyrosine kinase signaling via the Ras/MAPK pathway. Phosphorylation and downregulation of Yan is facilitated by a protein called Mae. Yan and Mae interact through their SAM domains. We find that repression by Yan requires the formation of a higher order structure mediated by Yan-SAM polymerization. Moreover, a crystal structure of the Yan-SAM/Mae-SAM complex shows that Mae-SAM specifically recognizes a surface on Yan-SAM that is also required for Yan-SAM polymerization. Mae-SAM binds to Yan-SAM with approximately 1000-fold higher affinity than Yan-SAM binds to itself and can effectively depolymerize Yan-SAM. Mutations on Mae that specifically disrupt its SAM domain-dependent interactions with Yan disable the derepression function of Mae in vivo. Depolymerization of Yan by Mae represents a novel mechanism of transcriptional control that sensitizes Yan for regulation by receptor tyrosine kinases.


    Organizational Affiliation

    UCLA-DOE Institute of Genomics and Proteomics, Molecular Biology Institute, Department of Chemistry and Biochemistry, University of California, Los Angeles 90095, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Ets DNA-binding protein pokkuriA, B85Drosophila melanogasterMutation(s): 1 
Gene Names: aoppokYanCG3166
Find proteins for Q01842 (Drosophila melanogaster)
Explore Q01842 
Go to UniProtKB:  Q01842
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
modulator of the activity of Ets CG15085-PAC, D82Drosophila melanogasterMutation(s): 0 
Gene Names: 
Find proteins for Q7K119 (Drosophila melanogaster)
Explore Q7K119 
Go to UniProtKB:  Q7K119
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.07 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.232 
  • R-Value Observed: 0.232 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.651α = 90
b = 70.327β = 90
c = 88.031γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
EPMRphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-07-27
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance