Native Mass Spectrometry Reveals Ligand-Specific Conformational Heterogeneity of the β1-Adrenergic Receptor Using Nanobody Probes
G protein-coupled receptors (GPCRs) are central physiological signal transducers and represent a primary class of therapeutic targets. While emerging evidence highlights a critical link between ligand-induced receptor conformations and pharmacological outcomes, the structural diversity dictating GPCR-G protein interf...