3NAU

Crystal structure of ZHX2 HD2 (zinc-fingers and homeoboxes protein 2, homeodomain 2)

• PDB DOI: https://doi.org/10.2210/pdb3NAU/pdb

• Classification: TRANSCRIPTION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2010-06-02 Released: 2010-07-07 
• Deposition Author(s): Ren, J., Bird, L.E., Owens, R.J., Stammers, D.K., Oxford Protein Production Facility (OPPF)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.267 
• R-Value Work: 0.203 
• R-Value Observed: 0.207 

Literature

Novel structural features in two ZHX homeodomains derived from a systematic study of single and multiple domains

Bird, L.E., Ren, J., Nettleship, J.E., Folkers, G.E., Owens, R.J., Stammers, D.K.

(2010) BMC Struct Biol 10: 13-13

• PubMed: 20509910 
• DOI: https://doi.org/10.1186/1472-6807-10-13
• Primary Citation of Related Structures:  
  3NAR, 3NAU


• PubMed Abstract: 
  

  Zhx1 to 3 (zinc-fingers and homeoboxes) form a set of paralogous genes encoding multi-domain proteins. ZHX proteins consist of two zinc fingers followed by five homeodomains. ZHXs have biological roles in cell cycle control by acting as co-repressors of the transcriptional regulator Nuclear Factor Y. As part of a structural genomics project we have expressed single and multi-domain fragments of the different human ZHX genes for use in structure determination.

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Organizational Affiliation: 

University of Oxford, Headington, UK.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 16.05 kDa 
• Atom Count: 967 
• Modelled Residue Count: 112 
• Deposited Residue Count: 132 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Zinc fingers and homeoboxes protein 2	A, B	66	Homo sapiens	Mutation(s): 0  Gene Names: zhx2
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y6X8 (Homo sapiens) Explore Q9Y6X8  Go to UniProtKB:  Q9Y6X8
PHAROS:  Q9Y6X8 GTEx:  ENSG00000178764

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.267 
• R-Value Work: 0.203 
• R-Value Observed: 0.207 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 96.71	α = 90
b = 60.67	β = 95.34
c = 27.71	γ = 90

Software Package:

Software Name	Purpose
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-07-07 
Deposition Author(s): Ren, J., Bird, L.E., Owens, R.J., Stammers, D.K., Oxford Protein Production Facility (OPPF)

Revision History  

• Version 1.0: 2010-07-07
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description