4RIQ

Crystal structure of DPY-30 dimerization/docking domain in complex with Ash2L Sdc1-DPY-30 Interacting region (SDI)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.238 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Molecular Basis for DPY-30 Association to COMPASS-like and NURF Complexes.

Tremblay, V.Zhang, P.Chaturvedi, C.P.Thornton, J.Brunzelle, J.S.Skiniotis, G.Shilatifard, A.Brand, M.Couture, J.F.

(2014) Structure 22: 1821-1830

  • DOI: 10.1016/j.str.2014.10.002
  • Primary Citation of Related Structures:  
    4RIQ

  • PubMed Abstract: 
  • DPY-30 is a subunit of mammalian COMPASS-like complexes (complex of proteins associated with Set1) and regulates global histone H3 Lys-4 trimethylation. Here we report structural evidence showing that the incorporation of DPY-30 into COMPASS-like complexes is mediated by several hydrophobic interactions between an amphipathic α helix located on the C terminus of COMPASS subunit ASH2L and the inner surface of the DPY-30 dimerization/docking (D/D) module ...

    DPY-30 is a subunit of mammalian COMPASS-like complexes (complex of proteins associated with Set1) and regulates global histone H3 Lys-4 trimethylation. Here we report structural evidence showing that the incorporation of DPY-30 into COMPASS-like complexes is mediated by several hydrophobic interactions between an amphipathic α helix located on the C terminus of COMPASS subunit ASH2L and the inner surface of the DPY-30 dimerization/docking (D/D) module. Mutations impairing the interaction between ASH2L and DPY-30 result in a loss of histone H3K4me3 at the β locus control region and cause a delay in erythroid cell terminal differentiation. Using overlay assays, we defined a consensus sequence for DPY-30 binding proteins and found that DPY-30 interacts with BAP18, a subunit of the nucleosome remodeling factor complex. Overall, our results indicate that the ASH2L/DPY-30 complex is important for cell differentiation and provide insights into the ability of DPY-30 to associate with functionally divergent multisubunit complexes.


    Organizational Affiliation

    Ottawa Institute of Systems Biology, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada. Electronic address: jean-francois.couture@uottawa.ca.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein dpy-30 homolog
A, B, D, E, G, H, J, K
A, B, D, E, G, H, J, K, M, N, P, Q, S, T, V, X [auth Z]
56Homo sapiensMutation(s): 0 
Gene Names: DPY30
UniProt & NIH Common Fund Data Resources
Find proteins for Q9C005 (Homo sapiens)
Explore Q9C005 
Go to UniProtKB:  Q9C005
PHAROS:  Q9C005
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Set1/Ash2 histone methyltransferase complex subunit ASH2C, F, I, L, O, R, U, W [auth X]27Homo sapiensMutation(s): 0 
Gene Names: ASH2LASH2L1
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UBL3 (Homo sapiens)
Explore Q9UBL3 
Go to UniProtKB:  Q9UBL3
PHAROS:  Q9UBL3
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.236 
  • R-Value Observed: 0.238 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.27α = 90.08
b = 56.27β = 89.9
c = 95.09γ = 115.39
Software Package:
Software NamePurpose
StructureStudiodata collection
PHASERphasing
PHENIXrefinement
d*TREKdata reduction
d*TREKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-12-17
    Type: Initial release