4CY9

DpsA14 from Streptomyces coelicolor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free: 0.171 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.154 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A Tale of Tails: Deciphering the Contribution of Terminal Tails to the Biochemical Properties of Two Dps Proteins from Streptomyces Coelicolor

Hitchings, M.D.Townsend, P.D.Pohl, E.Facey, P.D.Jones, D.H.Dyson, P.J.Del Sol, R.

(2014) Cell Mol Life Sci 71: 4911

  • DOI: https://doi.org/10.1007/s00018-014-1658-4
  • Primary Citation of Related Structures:  
    4CY9, 4CYA, 4CYB

  • PubMed Abstract: 

    Dps proteins are members of an extensive family of proteins that oxidise and deposit iron in the form of ferric oxide, and are also able to bind DNA. Ferroxidation centres are formed at the interface of anti-parallel dimers, which further assemble into dodecameric nanocages with a hollow core where ferric oxide is deposited. Streptomyces coelicolor encodes three Dps-like proteins (DpsA, B and C). Despite sharing the conserved four-helix bundle organisation observed in members of the Dps family, they display significant differences in the length of terminal extensions, or tails. DpsA possess both N- and C-terminal tails of different lengths, and their removal affects quaternary structure assembly to varying degrees. DpsC quaternary structure, on the other hand, is heavily dependent on its N-terminal tail as its removal abolishes correct protein folding. Analysis of the crystal structure of dodecamers from both proteins revealed remarkable differences in the position of tails and interface surface area; and provides insight to explain the differences in biochemical behaviour observed while comparing DpsA and DpsC.


  • Organizational Affiliation

    College of Medicine, Swansea University, Singleton Park, Swansea, SA2 8PP, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DPSA168Streptomyces coelicolorMutation(s): 0 
UniProt
Find proteins for Q9R408 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145))
Explore Q9R408 
Go to UniProtKB:  Q9R408
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9R408
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.78 Å
  • R-Value Free: 0.171 
  • R-Value Work: 0.153 
  • R-Value Observed: 0.154 
  • Space Group: F 41 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 209.66α = 90
b = 209.66β = 90
c = 209.66γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-06-25
    Type: Initial release
  • Version 1.1: 2014-11-26
    Changes: Database references
  • Version 1.2: 2024-05-08
    Changes: Data collection, Database references, Derived calculations, Other