4U2N | pdb_00004u2n

Crystal structure of a complex of the Miz1- and Nac1 POZ domains.

• PDB DOI: https://doi.org/10.2210/pdb4U2N/pdb

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


• Deposited: 2014-07-17 Released: 2014-12-10 
• Deposition Author(s): Stead, M.A., Wright, S.C.
• Funding Organization(s): Yorkshire Cancer Research

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 
  0.286 (Depositor), 0.279 (DCC) 
• R-Value Work: 
  0.238 (Depositor), 0.237 (DCC) 
• R-Value Observed: 
  0.240 (Depositor) 

Starting Model: experimental

Literature

Structures of heterodimeric POZ domains of Miz1/BCL6 and Miz1/NAC1.

Stead, M.A., Wright, S.C.

(2014) Acta Crystallogr F Struct Biol Commun 70: 1591-1596

• PubMed: 25484205 
• DOI: https://doi.org/10.1107/S2053230X14023449
• Primary Citation Related Structures: 
  4U2M, 4U2N


• PubMed Abstract: 
  

  The POZ domain is an evolutionarily conserved protein-protein interaction domain that is found in approximately 40 mammalian transcription factors. POZ domains mediate both homodimerization and the heteromeric interactions of different POZ-domain transcription factors with each other. Miz1 is a POZ-domain transcription factor that regulates cell-cycle arrest and DNA-damage responses. The activities of Miz1 are altered by its interaction with the POZ-domain transcriptional repressors BCL6 and NAC1, and these interactions have been implicated in tumourigenesis in B-cell lymphomas and in ovarian serous carcinomas that overexpress BCL6 and NAC1, respectively. A strategy for the purification of tethered POZ domains that form forced heterodimers is described, and crystal structures of the heterodimeric POZ domains of Miz1/BCL6 and of Miz1/NAC1 are reported. These structures will be relevant for the design of therapeutics that target POZ-domain interaction interfaces.

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Organizational Affiliation: 
• School of Biology, University of Leeds, Leeds LS2 9JT, England.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 55.72 kDa 
• Atom Count: 3,611 
• Modeled Residue Count: 465 
• Deposited Residue Count: 510 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Zinc finger and BTB domain-containing protein 17,Nucleus accumbens-associated protein 1	A, B	255	Homo sapiens	Mutation(s): 1  Gene Names: ZBTB17, MIZ1, ZNF151, ZNF60, NACC1, BTBD14B, NAC1
UniProt & NIH Common Fund Data Resources
Find proteins for Q13105 (Homo sapiens) Explore Q13105  Go to UniProtKB:  Q13105
PHAROS:  Q13105 GTEx:  ENSG00000116809
Find proteins for Q96RE7 (Homo sapiens) Explore Q96RE7  Go to UniProtKB:  Q96RE7
PHAROS:  Q96RE7 GTEx:  ENSG00000160877
UniProt Groups	Q13105Q96RE7

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free:  0.286 (Depositor), 0.279 (DCC) 
• R-Value Work:  0.238 (Depositor), 0.237 (DCC) 
• R-Value Observed: 0.240 (Depositor) 

Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 109.09	α = 90
b = 115.19	β = 90
c = 58.29	γ = 90

Software Package:

Software Name	Purpose
XDS	data reduction
PDB_EXTRACT	data extraction
PHASER	phasing
REFMAC	refinement
Aimless	data scaling
XSCALE	data reduction

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2014-12-10 
Deposition Author(s): Stead, M.A., Wright, S.C.

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Funding Organization	Location	Grant Number
Yorkshire Cancer Research	United Kingdom	L334

Revision History  

• Version 1.0: 2014-12-10
  Type: Initial release
  
• Version 1.1: 2014-12-17
  Changes: Database references
• Version 1.2: 2023-12-20
  Changes: Data collection, Database references, Refinement description