TenA homologue protein from P.horikoshii OT3

Experimental Data Snapshot

  • Resolution: 2.15 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.218 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Structure analysis of PH1161 protein, a transcriptional activator TenA homologue from the hyperthermophilic archaeon Pyrococcus horikoshii.

Itou, H.Yao, M.Watanabe, N.Tanaka, I.

(2004) Acta Crystallogr D Biol Crystallogr 60: 1094-1100

  • DOI: https://doi.org/10.1107/S0907444904008522
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The crystal structure of the Bacillus subtilis TenA-homologue protein PH1161 from the hyperthermophilic archaebacterium Pyrococcus horikoshii was determined. TenA is known to belong to a new family of activators that stimulate the production of extracellular proteases in B. subtilis. A sequence-similarity search revealed that TenA-homologue proteins are widespread in bacteria and archaea, suggesting that this family of proteins plays an essential role in these organisms. In the present study, the first three-dimensional structure of a member of the TenA family of proteins was determined, unexpectedly revealing that the protein has a fold identical to that of haem oxygenase-1. Analysis has also shown that the protein has a unique ligand-binding pocket. Electron density of a bound ligand molecule was observed in this pocket. These results provide a valuable insight into the functional understanding of the TenA family of proteins.

  • Organizational Affiliation

    Frontier Research Center for Post-genomic Science and Technology, Hokkaido University, Sapporo 001-0021, Japan.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
transcriptional regulator
A, B, C, D
226Pyrococcus horikoshii OT3Mutation(s): 0 
Gene Names: PH1161
Find proteins for O58873 (Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3))
Explore O58873 
Go to UniProtKB:  O58873
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO58873
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.15 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.218 
  • Space Group: P 32
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 116.8α = 90
b = 116.8β = 90
c = 70.97γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
CCP4data scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-06-01
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance