5IE4

Crystal structure of a lactonase mutant in complex with substrate a

• PDB DOI: https://doi.org/10.2210/pdb5IE4/pdb

• Classification: HYDROLASE
• Organism(s): Clonostachys rosea
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2016-02-25 Released: 2017-01-04 
• Deposition Author(s): Zheng, Y.Y., Xu, Z.X., Liu, W.D., Chen, C.C., Guo, R.T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.265 
• R-Value Work: 0.203 
• R-Value Observed: 0.206 

Starting Model: experimental

Literature

Enhanced alph-Zearalenol Hydrolyzing Activity of a Mycoestrogen-Detoxifying Lactonase by Structure-Based Engineering

Xu, Z.X., Liu, W.D., Chen, C.C., Li, Q., Huang, J.W., Ko, T.P., Liu, G., Liu, W., Peng, W., Cheng, Y.S., Chen, Y., Jin, J., Li, H., Zheng, Y.Y., Guo, R.T.

(2016) ACS Catal 6: 7657-7663

• DOI: https://doi.org/10.1021/acscatal.6b01826

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 86.93 kDa 
• Atom Count: 5,445 
• Modelled Residue Count: 679 
• Deposited Residue Count: 792 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Zearalenone hydrolase	A, B, C	264	Clonostachys rosea	Mutation(s): 1  Gene Names: zhd101 EC: 3.1.1
UniProt
Find proteins for Q8NKB0 (Bionectria ochroleuca) Explore Q8NKB0  Go to UniProtKB:  Q8NKB0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
36J	D [auth A], E [auth B]	(3S,7R,11E)-7,14,16-trihydroxy-3-methyl-3,4,5,6,7,8,9,10-octahydro-1H-2-benzoxacyclotetradecin-1-one C18 H24 O5 FPQFYIAXQDXNOR-QDKLYSGJSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.265 
• R-Value Work: 0.203 
• R-Value Observed: 0.206 
• Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 86.205	α = 90
b = 86.205	β = 90
c = 473.247	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data scaling
PHASER	phasing
PDB_EXTRACT	data extraction
HKL-2000	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2017-01-04 
Deposition Author(s): Zheng, Y.Y., Xu, Z.X., Liu, W.D., Chen, C.C., Guo, R.T.

Revision History  

• Version 1.0: 2017-01-04
  Type: Initial release
  
• Version 1.1: 2023-11-08
  Changes: Data collection, Database references, Refinement description