Engineered depalmitoylases enable selective manipulation of protein localization and function

Srinidhi Jayaraman, Audrey Kochiss, Thy-Lan Alcalay, Pedro J. Rivero Morfin and Manu Ben-Johny ()
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Srinidhi Jayaraman: Columbia University
Audrey Kochiss: Columbia University
Thy-Lan Alcalay: Columbia University
Pedro J. Rivero Morfin: Columbia University
Manu Ben-Johny: Columbia University

Nature Communications, 2025, vol. 16, issue 1, 1-15

Abstract: Abstract S-Palmitoylation is a reversible post-translational modification that tunes the localization, stability, and function of an impressive array of proteins including ion channels, G-proteins, and synaptic proteins. Indeed, altered protein palmitoylation is linked to various human diseases including cancers, neurodevelopmental and neurodegenerative diseases. As such, strategies to selectively manipulate protein palmitoylation with enhanced temporal and subcellular precision are sought after to both delineate physiological functions and as potential therapeutics. Here, we develop chemogenetically and optogenetically inducible engineered depalmitoylases to manipulate the palmitoylation status of target proteins. We demonstrate that this strategy is programmable allowing selective depalmitoylation in specific organelles, triggered by cell-signaling events, and of individual protein complexes. Application of this methodology revealed bidirectional tuning of neuronal excitability by distinct depalmitoylases. Overall, this strategy represents a versatile and powerful method for manipulating protein palmitoylation in live cells, providing insights into their regulation in distinct physiological contexts.

Date: 2025
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DOI: 10.1038/s41467-025-58908-x

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