9XEH | pdb_00009xeh

PET hydrolase mutants V53A, C208K, C257S

• PDB DOI: https://doi.org/10.2210/pdb9XEH/pdb

• Classification: HYDROLASE
• Organism(s): Pseudideonella sakaiensis
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2025-10-28 Released: 2026-11-04 
• Deposition Author(s): Ma, X.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.87 Å
• R-Value Free: 
  0.265 (Depositor), 0.274 (DCC) 
• R-Value Work: 
  0.225 (Depositor), 0.231 (DCC) 
• R-Value Observed: 
  0.227 (Depositor) 

Starting Model: experimental

Literature

Three-directional engineering of IsPETase with enhanced protein yield, activity, and durability

Lee, S.H.

(2023) J Hazard Mater 459

• DOI: https://doi.org/10.1016/j.jhazmat.2023.132297.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Biological Assembly 3  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 3 assigned by authors.

Biological Assembly 4  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 4 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 115.78 kDa 
• Atom Count: 8,173 
• Modeled Residue Count: 1,054 
• Deposited Residue Count: 1,092 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PET hydrolase Z1PETase mutants V196L, C233K, C282S	A, B, C, D	273	Pseudideonella sakaiensis	Mutation(s): 0  EC: 3.1.1.101

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.87 Å
• R-Value Free:  0.265 (Depositor), 0.274 (DCC) 
• R-Value Work:  0.225 (Depositor), 0.231 (DCC) 
• R-Value Observed: 0.227 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.413	α = 90
b = 132.886	β = 90.13
c = 79.096	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-3000	data reduction
HKL-3000	data scaling
PHASER	phasing
Coot	model building

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-11-04 
Deposition Author(s): Ma, X.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History  

• Version 1.0: 2026-11-04
  Type: Initial release