
#471Genetics & Molecular BiologyFront Page22 December 2025
Scrutinising the GPCR Activation Mechanism: Ligand Efficacy and Kinetic Traps
Researchers employed time-resolved cryo-EM to visualize intermediate states of the μ-opioid receptor under non-equilibrium conditions. The findings propose that ligand efficacy correlates with specific structural dynamics, suggesting partial agonists may induce a stalled state during activation.
By Robertson, Modak, Papasergi-Scott, Hu, Peroto, Varga, Majumdar, Kalathur, Blanchard, Skiniotis
