The crystal structure of the transcriptional regulator SlyA

Experimental Data Snapshot

  • Resolution: 1.60 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.248 

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This is version 1.4 of the entry. See complete history


Crystal structure of Enterococcus faecalis SlyA-like transcriptional factor

Wu, R.Y.Zhang, R.G.Zagnitko, O.Dementieva, I.Maltzev, N.Watson, J.D.Laskowski, R.Gornicki, P.Joachimiak, A.

(2003) J Biol Chem 278: 20240-20244

  • DOI: https://doi.org/10.1074/jbc.M300292200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The crystal structure of a SlyA transcriptional regulator at 1.6 A resolution is presented, and structural relationships between members of the MarR/SlyA family are discussed. The SlyA family, which includes SlyA, Rap, Hor, and RovA proteins, is widely distributed in bacterial and archaeal genomes. Current evidence suggests that SlyA-like factors act as repressors, activators, and modulators of gene transcription. These proteins have been shown to up-regulate the expression of molecular chaperones, acid-resistance proteins, and cytolysin, and down-regulate several biosynthetic enzymes. The structure of SlyA from Enterococcus faecalis, determined as a part of an ongoing structural genomics initiative (www.mcsg.anl.gov), revealed the same winged helix DNA-binding motif that was recently found in the MarR repressor from Escherichia coli and the MexR repressor from Pseudomonas aeruginosa, a sequence homologue of MarR. Phylogenetic analysis of the MarR/SlyA family suggests that Sly is placed between the SlyA and MarR subfamilies and shows significant sequence similarity to members of both subfamilies.

  • Organizational Affiliation

    Biosciences Division and Structural Biology Center, Argonne National Laboratory, Illinois 60439, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
transcriptional regulator SlyA
A, B
144Enterococcus faecalisMutation(s): 0 
Gene Names: REF02436
Find proteins for Q82ZP8 (Enterococcus faecalis (strain ATCC 700802 / V583))
Explore Q82ZP8 
Go to UniProtKB:  Q82ZP8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ82ZP8
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.60 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.248 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.512α = 90
b = 48.429β = 90
c = 125.999γ = 90
Software Package:
Software NamePurpose
d*TREKdata scaling
HKL-2000data reduction
d*TREKdata reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-01-21
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description
  • Version 1.4: 2024-02-14
    Changes: Data collection, Database references