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Elucidating the zinc-binding proteome of Fusarium oxysporum f. sp. lycopersici with particular emphasis on zinc-binding effector proteins

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Abstract

Fusarium oxysporum f. sp. lycopersici is a soil-borne phytopathogenic species which causes vascular wilt disease in the Solanum lycopersicum (tomato). Due to the continuous competition for zinc usage by Fusarium and its host during infection makes zinc-binding proteins a hotspot for focused investigation. Zinc-binding effector proteins are pivotal during the infection process, working in conjunction with other essential proteins crucial for its biological activities. This work aims at identifying and analysing zinc-binding proteins and zinc-binding proteins effector candidates of Fusarium. We have identified three hundred forty-six putative zinc-binding proteins; among these proteins, we got two hundred and thirty zinc-binding proteins effector candidates. The functional annotation, subcellular localization, and Gene Ontology analysis of these putative zinc-binding proteins revealed their probable role in wide range of cellular and biological processes such as metabolism, gene expression, gene expression regulation, protein biosynthesis, protein folding, cell signalling, DNA repair, and RNA processing. Sixteen proteins were found to be putatively secretory in nature. Eleven of these were putative zinc-binding protein effector candidates may be involved in pathogen–host interaction during infection. The information obtained here may enhance our understanding to design, screen, and apply the zinc-metal ion-based antifungal agents to protect the S. lycopersicum and control the vascular wilt caused by F. oxysporum.

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Acknowledgements

The authors are thankful to the Indian Institute of Technology Roorkee, Uttarakhand and the Central University of Himachal Pradesh for its computational facility.

Funding

ASK is grateful to the University Grants Commission of India for providing the research fellowship (Ref. No. 19/06/2016(I) EU-V). SKV is thankful to the Institution of Eminence, University of Delhi for the Faculty Research Programme Grant (Ref. No./IoE/2021/12/FRP).

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ASK performed all experiments, collected and analysed data, and wrote the manuscript. HD and VU extracted the zinc-binding proteins and its clustering. SKV and ASK conceived the idea of work. SKV edited the manuscript. RP provided guidance and supervision throughout the whole work process.

Corresponding author

Correspondence to Ramasare Prasad.

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The authors affirm that they have no known financial or personal affiliations that could have seemed to affect the work disclosed in this study.

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Communicated by Yusuf Akhter.

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Kushwah, A.S., Dixit, H., Upadhyay, V. et al. Elucidating the zinc-binding proteome of Fusarium oxysporum f. sp. lycopersici with particular emphasis on zinc-binding effector proteins. Arch Microbiol 205, 298 (2023). https://doi.org/10.1007/s00203-023-03638-1

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  • DOI: https://doi.org/10.1007/s00203-023-03638-1

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