Download MendeleyA method for structure determination of GPCRs in various states.
Guo, Q., He, B., Zhong, Y., Jiao, H., Ren, Y., Wang, Q., Ge, Q., Gao, Y., Liu, X., Du, Y., Hu, H., Tao, Y.(2024) Nat Chem Biol 20: 74-82
- PubMed: 37580554
- DOI: https://doi.org/10.1038/s41589-023-01389-0
- Primary Citation of Related Structures:
8J7E, 8JJ8, 8JJL, 8JJO, 8JMT - PubMed Abstract:
G-protein-coupled receptors (GPCRs) are a class of integral membrane proteins that detect environmental cues and trigger cellular responses. Deciphering the functional states of GPCRs induced by various ligands has been one of the primary goals in the field. Here we developed an effective universal method for GPCR cryo-electron microscopy structure determination without the need to prepare GPCR-signaling protein complexes. Using this method, we successfully solved the structures of the β 2 -adrenergic receptor (β 2 AR) bound to antagonistic and agonistic ligands and the adhesion GPCR ADGRL3 in the apo state. For β 2 AR, an intermediate state stabilized by the partial agonist was captured. For ADGRL3, the structure revealed that inactive ADGRL3 adopts a compact fold and that large unusual conformational changes on both the extracellular and intracellular sides are required for activation of adhesion GPCRs. We anticipate that this method will open a new avenue for understanding GPCR structure‒function relationships and drug development.
Organizational Affiliation:
Department of Laboratory Medicine, The First Affiliated Hospital of USTC, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Hefei National Center for Cross-Disciplinary Sciences, Biomedical Sciences and Health Laboratory of Anhui Province, Center for Advanced Interdisciplinary Science and Biomedicine of IHM, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
