Crystal structure of PETase W159F mutant from Ideonella sakaiensis

Experimental Data Snapshot

  • Resolution: 1.45 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.169 
  • R-Value Observed: 0.170 

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Structural and functional characterization of polyethylene terephthalate hydrolase from Ideonella sakaiensis.

Liu, C.Shi, C.Zhu, S.Wei, R.Yin, C.C.

(2019) Biochem Biophys Res Commun 508: 289-294

  • DOI: https://doi.org/10.1016/j.bbrc.2018.11.148
  • Primary Citation of Related Structures:  
    6ILW, 6ILX

  • PubMed Abstract: 

    Polyethylene terephthalate (PET) hydrolase from Ideonella sakaiensis (IsPETase) can be used to degrade PET. In order to use IsPETase in industry, we studied the enzymatic activity of IsPETase in different conditions containing environmental and physicochemical factors commonly found in nature. We observed that salts and glycerol enhanced the enzymatic activity, while detergents and organic solvents reduced the enzymatic activity. IsPETase hydrolyzed p-nitrophenyl (p-NP) esters instead of naphthyl esters. To make IsPETase an enzyme capable of hydrolyzing naphthyl esters, site-directed mutagenesis was carried out based on the structural information provided by the crystal structure. We found that the IsPETase S93M , IsPETase W159F , and IsPETase N241F mutants can hydrolyze naphthyl esters. IsPETase engineering can direct researchers to use this α/β-hydrolase protein scaffold to design enzymes that can hydrolyze a variety of polyesters.

  • Organizational Affiliation

    Department of Biophysics, The Health Science Center, Peking University, Beijing, 100191, China. Electronic address: liucc@bjmu.edu.cn.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Poly(ethylene terephthalate) hydrolase270Piscinibacter sakaiensisMutation(s): 1 
Gene Names: ISF6_4831
Find proteins for A0A0K8P6T7 (Ideonella sakaiensis (strain NBRC 110686 / TISTR 2288 / 201-F6))
Explore A0A0K8P6T7 
Go to UniProtKB:  A0A0K8P6T7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0K8P6T7
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.45 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.169 
  • R-Value Observed: 0.170 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.087α = 90
b = 51.077β = 90
c = 85.378γ = 90
Software Package:
Software NamePurpose
HKL-3000data reduction
HKL-3000data scaling

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Natural Science Foundation of ChinaChina31570732
National Natural Science Foundation of ChinaChina31770785

Revision History  (Full details and data files)

  • Version 1.0: 2019-03-27
    Type: Initial release
  • Version 1.1: 2019-04-10
    Changes: Data collection, Database references
  • Version 1.2: 2020-09-09
    Changes: Structure summary