8ZLG | pdb_00008zlg

Crystal structure of a beta-1,4-endoglucanase from Bispora sp. MEY-1

• PDB DOI: https://doi.org/10.2210/pdb8ZLG/pdb

• Classification: HYDROLASE
• Organism(s): Bispora sp. MEY-1
• Expression System: Komagataella pastoris
• Mutation(s): No 


• Deposited: 2024-05-20 Released: 2025-05-28 
• Deposition Author(s): Zheng, J., Luo, H.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 
  0.248 (Depositor), 0.249 (DCC) 
• R-Value Work: 
  0.183 (Depositor), 0.184 (DCC) 
• R-Value Observed: 
  0.186 (Depositor) 

Starting Model: experimental

Literature

Unraveling the Key Determinants of Substrate Promiscuity in Glycoside Hydrolase Family 5_5 Cellulases

Zheng, J., Luo, H.

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: 72.14 kDa 
• Atom Count: 5,302 
• Modeled Residue Count: 624 
• Deposited Residue Count: 644 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Endo-beta-1, 4-glucanase	A, B	322	Bispora sp. MEY-1	Mutation(s): 0  EC: 3.2.1.4
Glycosylation
Glycosylation Sites: 3

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG (Subject of Investigation/LOI)	C [auth A], D [auth A], E [auth A], F [auth B], G [auth B], H [auth B]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free:  0.248 (Depositor), 0.249 (DCC) 
• R-Value Work:  0.183 (Depositor), 0.184 (DCC) 
• R-Value Observed: 0.186 (Depositor) 

Space Group: I 4₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 115.101	α = 90
b = 115.101	β = 90
c = 107.712	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-05-28 
Deposition Author(s): Zheng, J., Luo, H.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	31872395

Revision History  

• Version 1.0: 2025-05-28
  Type: Initial release
  
• Version 2.0: 2025-06-04
  Changes: Atomic model, Data collection, Derived calculations