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Updated: Jan 5, 2026

Identification of Small Molecule-binding Proteins in a Native Cellular Environment by Live-cell Photoaffinity Labeling
Published on: September 20, 2016
A Photoactivatable Small-Molecule Probe for the In Vivo Capture of Polyketide Intermediates
Samantha L Kilgour1, Robert Jenkins1, Manuela Tosin1
1Department of Chemistry, University of Warwick, Library Road, Coventry, CV4 7AL, UK.
Abstract:
A photolabile carba(dethia) malonyl N-acetylcysteamine derivative was devised and prepared for the trapping of biosynthetic polyketide intermediates following light activation. From the lasalocid A polyketide assembly in a mutant strain of the soil bacterium Streptomyces lasaliensis, a previously undetected cyclised intermediate was identified and characterised, providing a new outlook on the timing of substrate processing.
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