9UTX | pdb_00009utx

The structure of the Q174E mutant of PES-H1

• PDB DOI: https://doi.org/10.2210/pdb9UTX/pdb

• Classification: HYDROLASE
• Organism(s): metagenome
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2025-05-05 Released: 2026-05-13 
• Deposition Author(s): Xie, W., Liu, A.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.66 Å
• R-Value Free: 
  0.247 (Depositor), 0.247 (DCC) 
• R-Value Work: 
  0.223 (Depositor), 0.223 (DCC) 
• R-Value Observed: 
  0.224 (Depositor) 

Starting Model: in silico

Literature

Rational design of the Polyethylene Terephthalate-degrading enzyme PES-H1 with low salt tolerance

Xie, W., Liu, A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 56.56 kDa 
• Atom Count: 4,250 
• Modeled Residue Count: 516 
• Deposited Residue Count: 524 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PES-H1	A, B	262	metagenome	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.66 Å
• R-Value Free:  0.247 (Depositor), 0.247 (DCC) 
• R-Value Work:  0.223 (Depositor), 0.223 (DCC) 
• R-Value Observed: 0.224 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.31	α = 90
b = 55.28	β = 94.85
c = 99.82	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
XDS	data scaling
MOLREP	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-05-13 
Deposition Author(s): Xie, W., Liu, A.

---

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32271322

Revision History  

• Version 1.0: 2026-05-13
  Type: Initial release