3EG6

Structure of WDR5 bound to MLL1 peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.72 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of WDR5 bound to mixed lineage leukemia protein-1 peptide.

Patel, A.Dharmarajan, V.Cosgrove, M.S.

(2008) J Biol Chem 283: 32158-32161

  • DOI: 10.1074/jbc.C800164200
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The mixed lineage leukemia protein-1 (MLL1) catalyzes histone H3 lysine 4 methylation and is regulated by interaction with WDR5 (WD-repeat protein-5), RbBP5 (retinoblastoma-binding protein-5), and the Ash2L (absent, small, homeotic discs-2-like) onco ...

    The mixed lineage leukemia protein-1 (MLL1) catalyzes histone H3 lysine 4 methylation and is regulated by interaction with WDR5 (WD-repeat protein-5), RbBP5 (retinoblastoma-binding protein-5), and the Ash2L (absent, small, homeotic discs-2-like) oncoprotein. In the accompanying investigation, we describe the identification of a conserved arginine containing motif, called the "Win" or WDR5 interaction motif, that is essential for the assembly and H3K4 dimethylation activity of the MLL1 core complex. Here we present a 1.7-A crystal structure of WDR5 bound to a peptide derived from the MLL1 Win motif. Our results show that Arg-3765 of MLL1 is bound in the same arginine binding pocket on WDR5 that was previously suggested to bind histone H3. Thermodynamic binding experiments show that the MLL1 Win peptide is preferentially recognized by WDR5. These results are consistent with a model in which WDR5 recognizes Arg-3765 of MLL1, which is essential for the assembly and enzymatic activity of the MLL1 core complex.


    Related Citations: 
    • A conserved arginine containing motif crucial for the assembly and enzymatic activity of the Mixed Lineage Leumkemia protein-1 core complex
      Patel, A., Vought, V.E., Dharmarajan, V., Cosgrove, M.S.
      () To be published --: --

    Organizational Affiliation

    Department of Biology, Syracuse University, Syracuse, New York 13244, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
WD repeat-containing protein 5A312Homo sapiensMutation(s): 0 
Gene Names: WDR5BIG3
Find proteins for P61964 (Homo sapiens)
Explore P61964 
Go to UniProtKB:  P61964
NIH Common Fund Data Resources
PHAROS  P61964
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by: Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
MLL-1 peptideC13N/AMutation(s): 0 
Find proteins for Q03164 (Homo sapiens)
Explore Q03164 
Go to UniProtKB:  Q03164
NIH Common Fund Data Resources
PHAROS  Q03164
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.72 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.203 
  • Space Group: C 2 2 21
  • Diffraction Data DOI: 10.15785/SBGRID/18 SBGrid
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.254α = 90
b = 98.384β = 90
c = 80.075γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing
CNSrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-09-30
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-10-25
    Changes: Refinement description