6JQS

Structure of Transcription factor, GerE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.09 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.206 

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This is version 1.1 of the entry. See complete history


Literature

Crystal structure of a transcription factor, GerE (PaGerE), from spore-forming bacterium Paenisporosarcina sp. TG-14.

Lee, C.W.Park, S.H.Koh, H.Y.Jeong, C.S.Hwang, J.Lee, S.G.Youn, U.J.Lee, C.S.Park, H.H.Kim, H.J.Park, H.Lee, J.H.

(2019) Biochem Biophys Res Commun 513: 374-379

  • DOI: https://doi.org/10.1016/j.bbrc.2019.04.019
  • Primary Citation of Related Structures:  
    6JQS

  • PubMed Abstract: 

    In cold and harsh environments such as glaciers and sediments in ice cores, microbes can survive by forming spores. Spores are composed of a thick coat protein, which protects against external factors such as heat-shock, high salinity, and nutrient deficiency. GerE is a key transcription factor involved in spore coat protein expression in the mother cell during sporulation. GerE regulates transcription during the late sporulation stage by directly binding to the promoter of cotB gene. Here, we report the crystal structure of PaGerE at 2.09 Å resolution from Paenisporosarcina sp. TG-14, which was isolated from the Taylor glacier. The PaGerE structure is composed of four α-helices and adopts a helix-turn-helix architecture with 68 amino acid residues. Based on our DNA binding analysis, the PaGerE binds to the promoter region of CotB to affect protein expression. Additionally, our structural comparison studies suggest that DNA binding by PaGerE causes a conformational change in the α4-helix region, which may strongly induce dimerization of PaGerE.


  • Organizational Affiliation

    Unit of Polar Genomics, Korea Polar Research Institute, Incheon, 21990, Republic of Korea.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-binding response regulator75Paenisporosarcina sp. TG-14Mutation(s): 0 
UniProt
Find proteins for A0A4V8H024 (Paenisporosarcina sp. TG-14)
Explore A0A4V8H024 
Go to UniProtKB:  A0A4V8H024
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A4V8H024
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.09 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.206 
  • Space Group: P 64
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.769α = 90
b = 63.769β = 90
c = 45.407γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
MxDCdata collection

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-04-24
    Type: Initial release
  • Version 1.1: 2019-05-15
    Changes: Data collection, Database references