5HDA

Crystal Structure of the BS69 coiled coil-MYND domains bound to an EBNA2 PXLXP motif


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3899 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

BS69/ZMYND11 C-Terminal Domains Bind and Inhibit EBNA2.

Harter, M.R.Liu, C.D.Shen, C.L.Gonzalez-Hurtado, E.Zhang, Z.M.Xu, M.Martinez, E.Peng, C.W.Song, J.

(2016) Plos Pathog. 12: e1005414-e1005414

  • DOI: 10.1371/journal.ppat.1005414

  • PubMed Abstract: 
  • Epstein-Barr virus (EBV) nuclear antigen 2 (EBNA2) plays an important role in driving immortalization of EBV-infected B cells through regulating the expression of many viral and cellular genes. We report a structural study of the tumor suppressor BS6 ...

    Epstein-Barr virus (EBV) nuclear antigen 2 (EBNA2) plays an important role in driving immortalization of EBV-infected B cells through regulating the expression of many viral and cellular genes. We report a structural study of the tumor suppressor BS69/ZMYND11 C-terminal region, comprised of tandem coiled-coil-MYND domains (BS69CC-MYND), in complex with an EBNA2 peptide containing a PXLXP motif. The coiled-coil domain of BS69 self-associates to bring two separate MYND domains in close proximity, thereby enhancing the BS69 MYND-EBNA2 interaction. ITC analysis of BS69CC-MYND with a C-terminal fragment of EBNA2 further suggests that the BS69CC-MYND homodimer synergistically binds to the two EBNA2 PXLXP motifs that are respectively located in the conserved regions CR7 and CR8. Furthermore, we showed that EBNA2 interacts with BS69 and down-regulates its expression at both mRNA and protein levels in EBV-infected B cells. Ectopic BS69CC-MYND is recruited to viral target promoters through interactions with EBNA2, inhibits EBNA2-mediated transcription activation, and impairs proliferation of lymphoblastoid cell lines (LCLs). Substitution of critical residues in the MYND domain impairs the BS69-EBNA2 interaction and abolishes the BS69 inhibition of the EBNA2-mediated transactivation and LCL proliferation. This study identifies the BS69 C-terminal domains as an inhibitor of EBNA2, which may have important implications in development of novel therapeutic strategies against EBV infection.


    Organizational Affiliation

    Department of Biochemistry, University of California, Riverside, Riverside, California, United States of America.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Zinc finger MYND domain-containing protein 11
A, C
124Homo sapiensMutation(s): 0 
Gene Names: ZMYND11 (BRAM1, BS69)
Find proteins for Q15326 (Homo sapiens)
Go to Gene View: ZMYND11
Go to UniProtKB:  Q15326
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Epstein-Barr nuclear antigen 2
B, D
9Epstein-Barr virus (strain B95-8)Mutation(s): 0 
Gene Names: EBNA2
Find proteins for P12978 (Epstein-Barr virus (strain B95-8))
Go to UniProtKB:  P12978
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, C
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3899 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.222 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 58.456α = 90.00
b = 38.190β = 97.53
c = 82.690γ = 90.00
Software Package:
Software NamePurpose
Cootmodel building
HKL-2000data scaling
PHENIXrefinement
PHASERphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2016-01-05 
  • Released Date: 2016-01-20 
  • Deposition Author(s): Song, J., Harter, M.

Revision History 

  • Version 1.0: 2016-01-20
    Type: Initial release
  • Version 1.1: 2016-02-17
    Type: Database references