Macromolecule Content

• Total Structure Weight: 16.43 kDa 
• Atom Count: 1156 
• Modelled Residue Count: 144 
• Deposited Residue Count: 144 
• Unique protein chains: 1

2AXL

Solution structure of a multifunctional DNA- and protein-binding domain of human Werner syndrome protein

• DOI: 10.2210/pdb2AXL/pdb
• BMRB: 6540

• Classification: DNA BINDING PROTEIN, PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2005-09-05 Released: 2005-12-13 
• Deposition Author(s): Hu, J.-S., Feng, H., Zeng, W., Lin, G.-X., Xi, X.G.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 40 
• Conformers Submitted: 10 
• Selection Criteria: back calculated data agree with experimental NOESY spectrum,structures with acceptable covalent geometry 

Literature

Solution structure of a multifunctional DNA- and protein-binding motif of human Werner syndrome protein.

Hu, J.-S., Feng, H., Zeng, W., Lin, G.-X., Xi, X.G.

(2005) Proc Natl Acad Sci U S A 102: 18379-18384

• PubMed: 16339893 
• DOI: 10.1073/pnas.0509380102
• Primary Citation of Related Structures:  
  2AXL


• PubMed Abstract: 
  

Werner syndrome (WS) is an autosomal recessive disease that results in premature aging. Mutations in the WS gene (WRN) result in a loss of expression of the WRN protein and predispose WS patients to accelerated aging. As a helicase and a nuclease, WRN is unique among the five human RecQ helicase family members and is capable of multiple functions involved in DNA replication, repair, recombination, and telomere maintenance. A 144-residue fragment of WRN was previously determined to be a multifunctional DNA- and protein-binding domain (DPBD) that interacts with structure-specific DNA and a variety of DNA-processing proteins. In addition, DPBD functions as a nucleolar targeting sequence of WRN. The solution structure of the DPBD, the first of a WRN fragment, has been solved by NMR. DPBD consists of a winged helix-like motif and an unstructured C-terminal region of approximately 20 aa. The putative DNA-binding surface of DPBD has been identified by using known structural and biochemical data. Based on the structural data and on the biochemical data, we suggest a surface on the DPBD for interacting with other proteins. In this structural model, a single winged helix domain binds to both DNA and other proteins. Furthermore, we propose that DPBD functions as a regulatory domain to regulate the enzymatic activity of WRN and to direct cellular localization of WRN through protein-protein interaction.

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Organizational Affiliation: 

Department of Chemistry and Biochemistry and Center for Biomolecular Structure and Organization, University of Maryland, College Park, MD 20742, USA. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Werner syndrome	A	144	Homo sapiens	Mutation(s): 0  Gene Names: WRN, RECQ3, RECQL2 EC: 3.6.4.12 (UniProt), 3.1 (UniProt)
Find proteins for Q14191 (Homo sapiens) Explore Q14191  Go to UniProtKB:  Q14191
NIH Common Fund Data Resources
PHAROS:  Q14191 GTEx:  ENSG00000165392

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 40 
• Conformers Submitted: 10 
• Selection Criteria: back calculated data agree with experimental NOESY spectrum,structures with acceptable covalent geometry 
• OLDERADO: 2AXL Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-09-05 
• Released Date: 2005-12-13 
Deposition Author(s): Hu, J.-S., Feng, H., Zeng, W., Lin, G.-X., Xi, X.G.

Revision History  

• Version 1.0: 2005-12-13
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance