ArticlebioRxiv : the preprint server for biology2026
A Modular Platform for Effector Discovery in Induced-Proximity Lysine Acetylation.
Article in bioRxiv : the preprint server for biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
3 authors.
Funding
Abstract
The regulation of post-translational modifications (PTMs) is central to cellular biology and disease. Induced-proximity strategies enable manipulation of PTMs by recruiting modifying enzymes to proteins of interest, but identifying effective effector enzymes typically requires extensive heterobifunctional molecule synthesis before biological validation. Here we report a modular platform that enables rapid evaluation of PTM editing enzymes against defined protein substrates in living cells using compound-dependent or nanobody-mediated induced proximity. Using lysine acetylation as a model system, we demonstrate programmable acetylation of GFP, histone H3, and p53 through recruitment of diverse acetyltransferases. Effector identity dictates site-specific acetylation patterns, enabling selective PTM deposition across substrates and cellular compartments. This platform enables rapid identification of productive effector-substrate relationships prior to heterobifunctional molecule development, accelerating the design of induced-proximity chemical probes for targeted PTM editing.
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Registered trials
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