Structure of the Pyrococcus Furiosus Esterase Pf2001 with space group P3121

Experimental Data Snapshot

  • Resolution: 1.61 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.168 

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Structural Mechanism for the Temperature-Dependent Activation of the Hyperthermophilic Pf2001 Esterase.

Varejao, N.De-Andrade, R.A.Almeida, R.V.Anobom, C.D.Foguel, D.Reverter, D.

(2018) Structure 26: 199-208.e3

  • DOI: https://doi.org/10.1016/j.str.2017.12.004
  • Primary Citation of Related Structures:  
    5G59, 5G5C, 5G5M, 5LCN

  • PubMed Abstract: 

    Lipases and esterases constitute a group of enzymes that catalyze the hydrolysis or synthesis of ester bonds. A major biotechnological interest corresponds to thermophilic esterases, due to their intrinsic stability at high temperatures. The Pf2001 esterase from Pyrococcus furiosus reaches its optimal activity between 70°C and 80°C. The crystal structure of the Pf2001 esterase shows two different conformations: monomer and dimer. The structures reveal important rearrangements in the "cap" subdomain between monomer and dimer, by the formation of an extensive intertwined helical interface. Moreover, the dimer interface is essential for the formation of the hydrophobic channel for substrate selectivity, as confirmed by mutagenesis and kinetic analysis. We also provide evidence for dimer formation at high temperatures, a process that correlates with its enzymatic activation. Thus, we propose a temperature-dependent activation mechanism of the Pf2001 esterase via dimerization that is necessary for the substrate channel formation in the active-site cleft.

  • Organizational Affiliation

    Institut de Biotecnologia i de Biomedicina and Departamento de Bioquimica i Biologia Molecular, Universitat Autonoma de Barcelona, 08193 Bellaterra, Spain; Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Estrutural, Universidade Federal do Rio de Janeiro, 21941-902 Rio de Janeiro, RJ, Brazil.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ESTERASE275Pyrococcus furiosusMutation(s): 0 
Find proteins for Q8TZJ1 (Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1))
Explore Q8TZJ1 
Go to UniProtKB:  Q8TZJ1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8TZJ1
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.61 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.168 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 105.334α = 90
b = 105.334β = 90
c = 47.843γ = 120
Software Package:
Software NamePurpose
XDSdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-06-21
    Type: Initial release
  • Version 1.1: 2017-08-23
    Changes: Data collection
  • Version 1.2: 2018-01-17
    Changes: Database references
  • Version 1.3: 2018-02-14
    Changes: Database references
  • Version 1.4: 2024-05-08
    Changes: Data collection, Database references, Derived calculations