A crystal structure of cutinases from Malbranchea cinnamomea

Experimental Data Snapshot

  • Resolution: 1.76 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.172 

wwPDB Validation   3D Report Full Report

This is version 1.0 of the entry. See complete history


High-level expression and characterization of a novel cutinase from Malbranchea cinnamomea suitable for butyl butyrate production.

Duan, X.Liu, Y.You, X.Jiang, Z.Yang, S.Yang, S.

(2017) Biotechnol Biofuels 10: 223-223

  • DOI: https://doi.org/10.1186/s13068-017-0912-z
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Butyl butyrate has been considered as a promising fuel source because it is a kind of natural ester which can be converted from renewable and sustainable lignocellulosic biomass. Compared with the conventional chemical methods for butyl butyrate production, the enzymatic approach has been demonstrated to be more attractive, mainly owing to the mild reaction conditions, high specificity, low energy consumption, and environmental friendliness. Cutinases play an important role in the butyl butyrate production process. However, the production level of cutinases is still relatively low. Thus, to identify novel cutinases suitable for butyl butyrate synthesis and enhance their yields is of great value in biofuel industry. A novel cutinase gene ( McCut ) was cloned from a thermophilic fungus Malbranchea cinnamomea and expressed in Pichia pastoris . The highest cutinase activity of 12, 536 U/mL was achieved in 5-L fermentor, which is by far the highest production for a cutinase. McCut was optimally active at pH 8.0 and 45 °C. It exhibited excellent stability within the pH range of 3.0-10.5 and up to 75 °C. The cutinase displayed broad substrate specificity with the highest activity towards p -nitrophenyl butyrate and tributyrin. It was capable of hydrolyzing cutin, polycaprolactone, and poly(butylene succinate). Moreover, McCut efficiently synthesized butyl butyrate with a maximum esterification efficiency of 96.9% at 4 h. The overall structure of McCut was resolved as a typical α/β-hydrolase fold. The structural differences between McCut and Aspergillus oryzae cutinase in groove and loop provide valuable information for redesign of McCut. These excellent features make it useful in biosynthesis and biodegradation fields. A novel cutinase from M. cinnamomea was identified and characterized for the first time. High-level expression by P. pastoris is by far the highest for a cutinase. The enzyme exhibited excellent stability and high esterification efficiency for butyl butyrate production, which may make it a good candidate in biofuel and chemical industries.

  • Organizational Affiliation

    Beijing Advanced Innovation Center for Food Nutrition and Human Health, China Agricultural University, Beijing, 100083 China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
cutinase199Malbranchea cinnamomeaMutation(s): 0 
Find proteins for A0A1S6YJF3 (Malbranchea cinnamomea)
Explore A0A1S6YJF3 
Go to UniProtKB:  A0A1S6YJF3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A1S6YJF3
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.76 Å
  • R-Value Free: 0.175 
  • R-Value Work: 0.172 
  • Space Group: P 21 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 34.407α = 90
b = 37.815β = 90
c = 127.967γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-01-31
    Type: Initial release