4EGC

Crystal Structure of MBP-fused Human Six1 Bound to Human Eya2 Eya Domain

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.994 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history. 

Literature

Structure-function analyses of the human SIX1-EYA2 complex reveal insights into metastasis and BOR syndrome.

Patrick, A.N., Cabrera, J.H., Smith, A.L., Chen, X.S., Ford, H.L., Zhao, R.

(2013) Nat.Struct.Mol.Biol. 20: 447-453

  • DOI: 10.1038/nsmb.2505

  • PubMed Abstract: 

    • SIX1 interacts with EYA to form a bipartite transcription factor essential for mammalian development. Loss of function of this complex causes branchio-oto-renal (BOR) syndrome, whereas re-expression of SIX1 or EYA promotes metastasis. Here we describ ...

    SIX1 interacts with EYA to form a bipartite transcription factor essential for mammalian development. Loss of function of this complex causes branchio-oto-renal (BOR) syndrome, whereas re-expression of SIX1 or EYA promotes metastasis. Here we describe the 2.0-Å structure of SIX1 bound to EYA2, which suggests a new DNA-binding mechanism for SIX1 and provides a rationale for the effect of BOR syndrome mutations. The structure also reveals that SIX1 uses predominantly a single helix to interact with EYA. Substitution of a single amino acid in this helix is sufficient to disrupt SIX1-EYA interaction, SIX1-mediated epithelial-mesenchymal transition and metastasis in mouse models. Given that SIX1 and EYA are overexpressed in many tumor types, our data indicate that targeting the SIX1-EYA complex may be a potent approach to inhibit tumor progression in multiple cancer types.

    Organizational Affiliation: 

    Department of Obstetrics and Gynecology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Maltose-binding periplasmic protein, Homeobox protein SIX1 chimera
A
559Homo sapiens, Escherichia coli (strain K12)
This entity is chimeric		Mutation(s): 5 
Gene Names: SIX1, malE
Find proteins for Q15475 (Homo sapiens)
Go to Gene View: SIX1
Go to UniProtKB:  Q15475
Find proteins for P0AEX9 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AEX9
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Eyes absent homolog 2
B
294Homo sapiensMutation(s): 0 
Gene Names: EYA2 (EAB1)
EC: 3.1.3.48
Find proteins for O00167 (Homo sapiens)
Go to Gene View: EYA2
Go to UniProtKB:  O00167
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MAL
Query on MAL
Download SDF File 
Download CCD File 
A
MALTOSE
C12 H22 O11
GUBGYTABKSRVRQ-ASMJPISFSA-N
 Ligand Interaction
MG
Query on MG
Download SDF File 
Download CCD File 
B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.994 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.184 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 123.207α = 90.00
b = 150.180β = 90.00
c = 53.921γ = 90.00
Software Package:
Software NamePurpose
MLPHAREphasing
SCALEPACKdata scaling
HKL-3000data collection
DENZOdata reduction
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-02-27
    Type: Initial release
  • Version 1.1: 2013-03-20
    Type: Database references
  • Version 1.2: 2013-04-17
    Type: Database references
  • Version 1.3: 2017-07-26
    Type: Refinement description, Source and taxonomy