1EYG

Crystal structure of chymotryptic fragment of E. coli ssb bound to two 35-mer single strand DNAS

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.256 

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This is version 1.3 of the entry. See complete history. 


Literature

Structure of the DNA binding domain of E. coli SSB bound to ssDNA.

Raghunathan, S., Kozlov, A.G., Lohman, T.M., Waksman, G.

(2000) Nat Struct Biol 7: 648-652

  • DOI: https://doi.org/10.1038/77943
  • Primary Citation of Related Structures:  
    1EYG

  • PubMed Abstract: 

    The structure of the homotetrameric DNA binding domain of the single stranded DNA binding protein from Escherichia coli (Eco SSB) bound to two 35-mer single stranded DNAs was determined to a resolution of 2.8 A. This structure describes the vast network of interactions that results in the extensive wrapping of single stranded DNA around the SSB tetramer and suggests a structural basis for its various binding modes.

    • Organizational Affiliation: 

    Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, Campus Box 8231, 660 S. Euclid Ave., Saint Louis, Missouri 63110, USA.


Macromolecules

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
SINGLE-STRAND DNA-BINDING PROTEINC [auth A],
D [auth B],
E [auth C],
F [auth D]		116Escherichia coliMutation(s): 0 
UniProt
Find proteins for P0AGE0 (Escherichia coli (strain K12))
Explore P0AGE0 
Go to UniProtKB:  P0AGE0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0AGE0
Sequence Annotations
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  • Reference Sequence
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Entity ID: 1
MoleculeChains LengthOrganismImage
SINGLE STRANDED 28-MER OF D(C)A [auth Q],
B [auth R]		35N/A
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.298 
  • R-Value Work: 0.256 
  • R-Value Observed: 0.256 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 98.688α = 90
b = 71.081β = 91.93
c = 79.16γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SHARPphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-08-01
    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: 2024-02-07
    Changes: Data collection, Database references