7QVH | pdb_00007qvh

The crystal structure of HotPETase, an evolved thermostable variant of IsPETase

• PDB DOI: https://doi.org/10.2210/pdb7QVH/pdb

• Classification: HYDROLASE
• Organism(s): Piscinibacter sakaiensis
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2022-01-21 Released: 2022-08-03 
• Deposition Author(s): Hardy, F.J., Levy, C., Green, A.P.
• Funding Organization(s): Biotechnology and Biological Sciences Research Council (BBSRC), European Research Council (ERC), Engineering and Physical Sciences Research Council

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.24 Å
• R-Value Free: 
  0.251 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.198 (Depositor), 0.200 (DCC) 

Starting Model: experimental

Literature

Directed evolution of an efficient and thermostable PET depolymerase

Bell, E.L., Smithson, R., Kilbride, S., Foster, J., Hardy, F.J., Ramachandran, S., Tedstone, A.A., Haigh, S.J., Garforth, A.A., Day, P.J.R., Levy, C., Shaver, M.P., Green, A.P.

(2022) Nat Catal 

• DOI: https://doi.org/10.1038/s41929-022-00821-3

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.

Macromolecule Content 

• Total Structure Weight: 86.7 kDa 
• Atom Count: 6,175 
• Modeled Residue Count: 804 
• Deposited Residue Count: 816 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Poly(ethylene terephthalate) hydrolase	A, B, C	272	Piscinibacter sakaiensis	Mutation(s): 21  Gene Names: ISF6_4831 EC: 3.1.1.101
UniProt
Find proteins for A0A0K8P6T7 (Piscinibacter sakaiensis) Explore A0A0K8P6T7  Go to UniProtKB:  A0A0K8P6T7

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PGE	D [auth A], E [auth C]	TRIETHYLENE GLYCOL C6 H14 O4 ZIBGPFATKBEMQZ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.24 Å
• R-Value Free:  0.251 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.198 (Depositor), 0.200 (DCC) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 81.7	α = 90
b = 74.855	β = 118.574
c = 82.701	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
xia2	data reduction
xia2	data scaling
PHASER	phasing
Coot	model building

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-08-03 
Deposition Author(s): Hardy, F.J., Levy, C., Green, A.P.

---

Funding Organization	Location	Grant Number
Biotechnology and Biological Sciences Research Council (BBSRC)	United Kingdom	BB/M027023/1
European Research Council (ERC)	United Kingdom	757991
Engineering and Physical Sciences Research Council	United Kingdom	R031711
Engineering and Physical Sciences Research Council	United Kingdom	R026815/1
Engineering and Physical Sciences Research Council	United Kingdom	K014706/2
Engineering and Physical Sciences Research Council	United Kingdom	K014668/1
Engineering and Physical Sciences Research Council	United Kingdom	K014854/1
Engineering and Physical Sciences Research Council	United Kingdom	K014714/1
Engineering and Physical Sciences Research Council	United Kingdom	M013219/1
Biotechnology and Biological Sciences Research Council (BBSRC)	United Kingdom	M017702/1
Engineering and Physical Sciences Research Council	United Kingdom	S01778X/1

Revision History  

• Version 1.0: 2022-08-03
  Type: Initial release
  
• Version 1.1: 2023-02-15
  Changes: Database references
• Version 1.2: 2024-02-07
  Changes: Data collection, Refinement description
• Version 1.3: 2024-11-06
  Changes: Structure summary