Acetylesterase (LgEstI) F207A

Experimental Data Snapshot

  • Resolution: 2.10 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.192 

wwPDB Validation   3D Report Full Report

This is version 1.1 of the entry. See complete history


Crystal structure and biochemical analysis of acetylesterase (LgEstI) from Lactococcus garvieae.

Do, H.Yoo, W.Wang, Y.Nam, Y.Shin, S.C.Kim, H.W.Kim, K.K.Lee, J.H.

(2023) PLoS One 18: e0280988-e0280988

  • DOI: https://doi.org/10.1371/journal.pone.0280988
  • Primary Citation of Related Structures:  
    7YC0, 7YC4

  • PubMed Abstract: 

    Esterase, a member of the serine hydrolase family, catalyzes the cleavage and formation of ester bonds with high regio- and stereospecificity, making them attractive biocatalysts for the synthesis of optically pure molecules. In this study, we performed an in-depth biochemical and structural characterization of a novel microbial acetylesterase, LgEstI, from the bacterial fish pathogen Lactococcus garvieae. The dimeric LgEstI displayed substrate preference for the short acyl chain of p-nitrophenyl esters and exhibited increased activity with F207A mutation. Comparative analysis with other esterases indicated that LgEstI has a narrow and shallow active site that may exhibit substrate specificity to short acyl chains. Unlike other esterases, LgEstI contains bulky residues such as Trp89, Phe194, and Trp217, which block the acyl chain channel. Furthermore, immobilized LgEstI retained approximately 90% of its initial activity, indicating its potential in industrial applications. This study expands our understanding of LgEstI and proposes novel ideas for improving its catalytic efficiency and substrate specificity for various applications.

  • Organizational Affiliation

    Research Unit of Cryogenic Novel Material, Korea Polar Research Institute, Incheon, Korea.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Alpha/beta hydrolase
A, B, C, D, E
A, B, C, D, E, F, G, H
320Lactococcus garvieae subsp. garvieaeMutation(s): 1 
Gene Names: F4V47_03290
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.10 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.192 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 99.2α = 90
b = 127.39β = 90.173
c = 104.76γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Research Foundation (NRF, Korea)Korea, Republic OfNRF-2021M1A5A1075524

Revision History  (Full details and data files)

  • Version 1.0: 2023-06-07
    Type: Initial release
  • Version 1.1: 2023-11-29
    Changes: Data collection, Refinement description