Steroid-based Tide Quencher 1 probes enable real-time mapping of novel non-canonical cholesterol sites on the M1 muscarinic receptor
This study introduces steroid-based Tide Quencher 1 (TQ1) probes that enable real-time, residue-level mapping of novel non-canonical cholesterol-binding sites on the M1 muscarinic receptor, overcoming traditional assay limitations to facilitate structure-guided drug discovery targeting allosteric lipid-GPCR interactions.