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 8Z5B | pdb_00008z5b

The X-Ray crystal structure of multicopper oxidase from Bacillus freudenreichii


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free: 
    0.173 (Depositor), 0.172 (DCC) 
  • R-Value Work: 
    0.158 (Depositor), 0.161 (DCC) 
  • R-Value Observed: 
    0.159 (Depositor) 

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Validation slider image for 8Z5B

This is version 1.1 of the entry. See complete history. 

Literature

ESM-Ezy: a deep learning strategy for the mining of novel multicopper oxidases with superior properties.

Qian, H., Wang, Y., Zhou, X., Gu, T., Wang, H., Lyu, H., Li, Z., Li, X., Zhou, H., Guo, C., Yuan, F., Wang, Y.

(2025) Nat Commun 16: 3274-3274

  • DOI: https://doi.org/10.1038/s41467-025-58521-y
  • Primary Citation Related Structures: 
    8Z59, 8Z5B

  • PubMed Abstract: 

    The UniProt database is a valuable resource for biocatalyst discovery, yet predicting enzymatic functions remains challenging, especially for low-similarity sequences. Identifying superior enzymes with enhanced catalytic properties is even harder. To overcome these challenges, we develop ESM-Ezy, an enzyme mining strategy leveraging the ESM-1b protein language model and similarity calculations in semantic space. Using ESM-Ezy, we identify novel multicopper oxidases (MCOs) with superior catalytic properties, achieving a 44% success rate in outperforming query enzymes (QEs) in at least one property, including catalytic efficiency, heat and organic solvent tolerance, and pH stability. Notably, 51% of the MCOs excel in environmental remediation applications, and some exhibited unique structural motifs and unique active centers enhancing their functions. Beyond MCOs, 40% of L-asparaginases identified show higher specific activity and catalytic efficiency than QEs. ESM-Ezy thus provides a promising approach for discovering high-performance biocatalysts with low sequence similarity, accelerating enzyme discovery for industrial applications.


  • Organizational Affiliation: 
    • School of Engineering, Westlake University, Hangzhou, 310014, Zhejiang, China.

Macromolecule Content 

  • Total Structure Weight: 63.83 kDa 
  • Atom Count: 4,766 
  • Modeled Residue Count: 507 
  • Deposited Residue Count: 553 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Multicopper oxidase553Bacillus freudenreichiiMutation(s): 0 
EC: 1.16.3.4
UniProt
Find proteins for A0A429XVX4 (Siminovitchia acidinfaciens)
Explore A0A429XVX4 
Go to UniProtKB:  A0A429XVX4
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A429XVX4
Sequence Annotations
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Reference Sequence

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Free:  0.173 (Depositor), 0.172 (DCC) 
  • R-Value Work:  0.158 (Depositor), 0.161 (DCC) 
  • R-Value Observed: 0.159 (Depositor) 
Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.59α = 90
b = 74.59β = 90
c = 230.946γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

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Entry History 

& Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Other private--

Revision History  (Full details and data files)

  • Version 1.0: 2025-02-19
    Type: Initial release
  • Version 1.1: 2025-09-03
    Changes: Database references