1KXL

Solution Structure of the Cdc13 DNA-binding Domain in a Complex with Single-Stranded Telomeric DNA (DNA structure not modeled)

• PDB DOI: https://doi.org/10.2210/pdb1KXL/pdb
• BMRB: 5232

• Classification: CELL CYCLE
• Organism(s): Saccharomyces cerevisiae
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2002-01-31 Released: 2002-04-10 
• Deposition Author(s): Mitton-Fry, R.M., Anderson, E.M., Wuttke, D.S.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 10 
• Selection Criteria: structures with the least restraint violations, structures with the lowest energy 

Literature

Conserved structure for single-stranded telomeric DNA recognition.

Mitton-Fry, R.M., Anderson, E.M., Hughes, T.R., Lundblad, V., Wuttke, D.S.

(2002) Science 296: 145-147

• PubMed: 11935027 
• DOI: https://doi.org/10.1126/science.1068799
• Primary Citation of Related Structures:  
  1KXL


• PubMed Abstract: 
  

  The essential Cdc13 protein in the yeast Saccharomyces cerevisiae is a single-stranded telomeric DNA binding protein required for chromosome end protection and telomere replication. Here we report the solution structure of the Cdc13 DNA binding domain in complex with telomeric DNA. The structure reveals the use of a single OB (oligonucleotide/oligosaccharide binding) fold augmented by an unusually large loop for DNA recognition. This OB fold is structurally similar to OB folds found in the ciliated protozoan telomere end-binding protein, although no sequence similarity is apparent between them. The common usage of an OB fold for telomeric DNA interaction demonstrates conservation of end-protection mechanisms among eukaryotes.

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Organizational Affiliation: 

Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 23.58 kDa 
• Atom Count: 1,559 
• Modelled Residue Count: 187 
• Deposited Residue Count: 199 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CELL DIVISION CONTROL PROTEIN 13	A	199	Saccharomyces cerevisiae	Mutation(s): 0
UniProt
Find proteins for P32797 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P32797  Go to UniProtKB:  P32797

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 10 
• Selection Criteria: structures with the least restraint violations, structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-04-10 
Deposition Author(s): Mitton-Fry, R.M., Anderson, E.M., Wuttke, D.S.

Revision History  

• Version 1.0: 2002-04-10
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-02-23
  Changes: Database references, Derived calculations