4PSD

Structure of Trichoderma reesei cutinase native form.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.52 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.163 
  • R-Value Observed: 0.163 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

A Cutinase from Trichoderma reesei with a Lid-Covered Active Site and Kinetic Properties of True Lipases.

Roussel, A.Amara, S.Nyyssola, A.Mateos-Diaz, E.Blangy, S.Kontkanen, H.Westerholm-Parvinen, A.Carriere, F.Cambillau, C.

(2014) J Mol Biol 426: 3757-3772

  • DOI: 10.1016/j.jmb.2014.09.003
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Cutinases belong to the α/β-hydrolase fold family of enzymes and degrade cutin and various esters, including triglycerides, phospholipids and galactolipids. Cutinases are able to degrade aggregated and soluble substrates because, in contrast with tru ...

    Cutinases belong to the α/β-hydrolase fold family of enzymes and degrade cutin and various esters, including triglycerides, phospholipids and galactolipids. Cutinases are able to degrade aggregated and soluble substrates because, in contrast with true lipases, they do not have a lid covering their catalytic machinery. We report here the structure of a cutinase from the fungus Trichoderma reesei (Tr) in native and inhibitor-bound conformations, along with its enzymatic characterization. A rare characteristic of Tr cutinase is its optimal activity at acidic pH. Furthermore, Tr cutinase, in contrast with classical cutinases, possesses a lid covering its active site and requires the presence of detergents for activity. In addition to the presence of the lid, the core of the Tr enzyme is very similar to other cutinase cores, with a central five-stranded β-sheet covered by helices on either side. The catalytic residues form a catalytic triad involving Ser164, His229 and Asp216 that is covered by the two N-terminal helices, which form the lid. This lid opens in the presence of surfactants, such as β-octylglucoside, and uncovers the catalytic crevice, allowing a C11Y4 phosphonate inhibitor to bind to the catalytic serine. Taken together, these results reveal Tr cutinase to be a member of a new group of lipolytic enzymes resembling cutinases but with kinetic and structural features of true lipases and a heightened specificity for long-chain triglycerides.


    Organizational Affiliation

    Architecture et Fonction des Macromolécules Biologiques, Aix Marseille Université, 13284 Marseille Cedex 09, France; Architecture et Fonction des Macromolécules Biologiques, UMR7257, Centre National de la Recherche Scientifique, 13288 Marseille Cedex 09, France. Electronic address: cambillau@afmb.univ-mrs.fr.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Carbohydrate esterase family 5A254Trichoderma reesei QM6aMutation(s): 0 
Gene Names: TRIREDRAFT_60489
EC: 3.1.1.74
Find proteins for G0RH85 (Hypocrea jecorina (strain QM6a))
Explore G0RH85 
Go to UniProtKB:  G0RH85
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.52 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.163 
  • R-Value Observed: 0.163 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 148.93α = 90
b = 148.93β = 90
c = 29.145γ = 120
Software Package:
Software NamePurpose
ADSCdata collection
MOLREPphasing
BUSTERrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-09-17
    Type: Initial release
  • Version 1.1: 2014-10-15
    Changes: Structure summary
  • Version 1.2: 2014-10-22
    Changes: Database references
  • Version 1.3: 2014-12-17
    Changes: Database references