1WQ6

The tetramer structure of the nervy homolgy two (NHR2) domain of AML1-ETO is critical for AML1-ETO'S activity

• PDB DOI: https://doi.org/10.2210/pdb1WQ6/pdb

• Classification: ONCOPROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2004-09-23 Released: 2005-10-04 
• Deposition Author(s): Liu, Y., Cheney, M.D., Chruszcz, M., Lukasik, S.M., Hartman, K.L., Laue, T.M., Dauter, Z., Minor, W., Speck, N.A., Bushweller, J.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.270 
• R-Value Work: 0.213 
• R-Value Observed: 0.216 

Literature

The tetramer structure of the Nervy homology two domain, NHR2, is critical for AML1/ETO's activity

Liu, Y., Cheney, M.D., Gaudet, J.J., Chruszcz, M., Lukasik, S.M., Sugiyama, D., Lary, J., Cole, J., Dauter, Z., Minor, W., Speck, N.A., Bushweller, J.H.

(2006) Cancer Cell 9: 249-260

• PubMed: 16616331 
• DOI: https://doi.org/10.1016/j.ccr.2006.03.012
• Primary Citation of Related Structures:  
  1WQ6


• PubMed Abstract: 
  

  AML1/ETO is the chimeric protein resulting from the t(8;21) in acute myeloid leukemia. The Nervy homology 2 (NHR2) domain in ETO mediates oligomerization and AML1/ETO's interactions with ETO, MTGR1, and MTG16, and with the corepressor molecules mSin3A and HDAC1 and HDAC3. We solved the NHR2 domain structure and found it to be an alpha-helical tetramer. We show that oligomerization contributes to AML1/ETO's inhibition of granulocyte differentiation, is essential for its ability to enhance the clonogenic potential of primary mouse bone marrow cells, and affects AML1/ETO's activity on several endogenous genes. Oligomerization is also required for AML1/ETO's interactions with ETO, MTGR1, and MTG16, but not with other corepressor molecules.

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Organizational Affiliation: 

Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia 22908, USA.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 18.31 kDa 
• Atom Count: 1,099 
• Modelled Residue Count: 118 
• Deposited Residue Count: 144 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
AML1-ETO	A, B	72	Homo sapiens	Mutation(s): 3  Gene Names: AML1/ETO
UniProt & NIH Common Fund Data Resources
Find proteins for Q06455 (Homo sapiens) Explore Q06455  Go to UniProtKB:  Q06455
PHAROS:  Q06455 GTEx:  ENSG00000079102

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.270 
• R-Value Work: 0.213 
• R-Value Observed: 0.216 
• Space Group: P 2₁ 2₁ 2
• Diffraction Data: https://doi.org/10.18430/m30592

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 60.72	α = 90
b = 75.442	β = 90
c = 30.781	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
HKL-2000	data reduction
SHELXD	phasing
SOLVE	phasing
RESOLVE	model building
REFMAC	refinement
HKL-2000	data scaling
SHARP	phasing
RESOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-10-04 
Deposition Author(s): Liu, Y., Cheney, M.D., Chruszcz, M., Lukasik, S.M., Hartman, K.L., Laue, T.M., Dauter, Z., Minor, W., Speck, N.A., Bushweller, J.H.

Revision History  

• Version 1.0: 2005-10-04
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2022-04-13
  Changes: Database references, Derived calculations, Structure summary
• Version 1.4: 2024-10-23
  Changes: Data collection, Structure summary