Deciphering the complexes of zinc ions and hen egg white lysozyme : Instrumental analysis, molecular docking, and antimicrobial assessment

Copyright © 2023. Published by Elsevier B.V..

In the research presented in this manuscript, an intricate study has been carried out on the interaction of zinc ions with the hen egg white lysozyme (HEWL) protein. Utilizing a spectroscopic technique, the alterations that arise due to the binding of Zn2+ to the HEWL were scrutinized, underscoring the paramount significance of deprotonated carboxyl and thiol groups in the process of binding. The binding phenomena were substantiated using capillary electrophoresis integrated with inductively coupled plasma mass spectrometry (CE-ICP-MS). Further spectrometric assessments (MALDI-TOF MS and FT-ICR-MS) shed light on the direct interaction of zinc ions with the functional groups of the protein. Importantly, high-resolution FT-ICR-MS techniques elucidated the capability of a single protein molecule to bind to multiple zinc ions. The empirically derived spectroscopic data received additional confirmation via a molecular docking study of the Zn2+ binding process, which highlighted a substantial affinity between the predicted 3D model of zinc-lysozyme complexes. Predominantly, the interaction between the bound entities was observed at the cysteine residues. Lastly, the conducted antimicrobial tests revealed that the zinc-lysozyme complexes manifest an inhibitory effect against bacterial (E. coli and S. aureus) and yeast (C. albicans) strains.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

2023

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:305

Enthalten in:

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy - 305(2023) vom: 15. Jan., Seite 123490

Sprache:

Englisch

Beteiligte Personen:

Rogowska, Agnieszka [VerfasserIn]
Król-Górniak, Anna [VerfasserIn]
Railean, Viorica [VerfasserIn]
Kanawati, Basem [VerfasserIn]
Schmitt-Kopplin, Phillipe [VerfasserIn]
Michalke, Bernhard [VerfasserIn]
Sugajski, Mateusz [VerfasserIn]
Pomastowski, Paweł [VerfasserIn]
Buszewski, Bogusław [VerfasserIn]

Links:

Volltext

Themen:

Anti-Infective Agents
Antimicrobial activity
EC 3.2.1.17
Ions
J41CSQ7QDS
Journal Article
Lysozyme
Mass spectrometry
Muramidase
Zinc
Zinc ions
Zinc-lysozyme complexes

Anmerkungen:

Date Completed 08.11.2023

Date Revised 08.11.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.saa.2023.123490

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM363093737