3FBI

Structure of the Mediator submodule Med7N/31


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Identification, structure, and functional requirement of the Mediator submodule Med7N/31

Koschubs, T.Seizl, M.Lariviere, L.Kurth, F.Baumli, S.Martin, D.E.Cramer, P.

(2009) Embo J. 28: 69-80

  • DOI: 10.1038/emboj.2008.254
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Mediator is a modular multiprotein complex required for regulated transcription by RNA polymerase (Pol) II. Here, we show that the middle module of the Mediator core contains a submodule of unique structure and function that comprises the N-terminal ...

    Mediator is a modular multiprotein complex required for regulated transcription by RNA polymerase (Pol) II. Here, we show that the middle module of the Mediator core contains a submodule of unique structure and function that comprises the N-terminal part of subunit Med7 (Med7N) and the highly conserved subunit Med31 (Soh1). The Med7N/31 submodule shows a conserved novel fold, with two proline-rich stretches in Med7N wrapping around the right-handed four-helix bundle of Med31. In vitro, Med7N/31 is required for activated transcription and can act in trans when added exogenously. In vivo, Med7N/31 has a predominantly positive function on the expression of a specific subset of genes, including genes involved in methionine metabolism and iron transport. Comparative phenotyping and transcriptome profiling identify specific and overlapping functions of different Mediator submodules.


    Organizational Affiliation

    Gene Center and Center for Integrated Protein Science Munich (CIPSM), Department of Chemistry and Biochemistry, Ludwig-Maximilians-Universit√§t (LMU) M√ľnchen, Munich, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mediator of RNA polymerase II transcription subunit 7
A, C
84Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: MED7
Find proteins for Q08278 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: MED7
Go to UniProtKB:  Q08278
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Mediator of RNA polymerase II transcription subunit 31
B, D
130Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SOH1 (MED31)
Find proteins for P38633 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P38633
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.195 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 174.620α = 90.00
b = 174.620β = 90.00
c = 117.840γ = 120.00
Software Package:
Software NamePurpose
RESOLVEphasing
XDSdata reduction
REFMACrefinement
PDB_EXTRACTdata extraction
PHENIXrefinement
SOLVEphasing
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-12-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance