9M6F | pdb_00009m6f

A thermostable zearalenone degrading enzyme mutant - S102A

• PDB DOI: https://doi.org/10.2210/pdb9M6F/pdb

• Classification: HYDROLASE
• Organism(s): Monosporascus sp. GIB2
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2025-03-07 Released: 2026-03-18 
• Deposition Author(s): Ouyang, B., Xu, W.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 
  0.382 (Depositor), 0.380 (DCC) 
• R-Value Work: 
  0.296 (Depositor), 0.300 (DCC) 
• R-Value Observed: 
  0.301 (Depositor) 

Starting Model: experimental

Literature

A thermostable zearalenone degrading enzyme mutant - S102A

Ouyang, B., Xu, W.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 29.86 kDa 
• Atom Count: 2,105 
• Modeled Residue Count: 267 
• Deposited Residue Count: 267 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
AB hydrolase-1 domain-containing protein	A	267	Monosporascus sp. GIB2	Mutation(s): 1  Gene Names: DL765_008938

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
SEP	A	L-PEPTIDE LINKING	C3 H8 N O6 P		SER

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free:  0.382 (Depositor), 0.380 (DCC) 
• R-Value Work:  0.296 (Depositor), 0.300 (DCC) 
• R-Value Observed: 0.301 (Depositor) 

Space Group: P 3₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 73.688	α = 90
b = 73.688	β = 90
c = 95.845	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
HKL-3000	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-03-18 
Deposition Author(s): Ouyang, B., Xu, W.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	22408125

Revision History  

• Version 1.0: 2026-03-18
  Type: Initial release