Ecosystem
Beta Site
Plenary Lecture
Identification and Functional Characterization of Adhesion GPCRs As Steroid Hormone Receptors and Hearing and Balance Receptors
Abstract
Only Available for AGPCR24 Attendees
About Jin-Peng Sun
"Since starting my laboratory in 2011, I has focused on G protein coupled receptors, in particular, the ligand identification, physiological functions and molecular mechanism of biased signaling of GPCRs. Our first main research aspect is the identification of endogenous ligand of GPCRs. We have identified the receptor subfamily to sense the steroid hormones. For instance, membrane receptor GPR97 is able to sense glucocorticoid to mediate its rapid actions, the progesterone and 17-hydroxyprogesterone membrane receptor are GPR126. We also identified DHEA, DHEAS and DOC are endogenous ligands of GPR64 etc (Nature, 2021a, Nat Chem Biol 2022, PNAS 2022b). Our second main research aspect is dissecting the molecular mechanism underlying sensation of force, ordor, itch and taste by GPCRs. We have elucidated the mechanism of receptors' perception of itch, olfactory and force (Nature 2021b, 2022a, 2022b, 2023a, 2024). Our third main research aspect is working mechanism of GPCR. For arrestin mediated biased signaling, we have proposed the “flute model” and “poly proline region docking theory” etc. to explain the arrestin mediated GPCR functions (Nature communications, 2015, 2021, 2022; PNAS 2021, Molecular Pharmacology, 2017; Recommended by Faculty 1000, Nature Chemical Biology 2018). We identified that arrestin can mediated AT1R/TRPC3 or M3R/TRPC3 coupling by forming a complex of AT1R/β-arrestin-1/PLCγ/TRPC3 or M3R//β-arrestin-1/TRPC3 (Nature communications, 2017, Nature communications, 2018). We also identified that orphan receptor GPR64 forms complex with β-arrestin-1 and CFTR at apical membrane of efferent ductulus to regulate the salt/water metabolism (eLife 2018, Faculty 1000 recommendation). Our fourth main research aspect is ligand coding mechanisms and structural aided drug discovery of GPCR. We have decoded the mechanisms underlying recognition of fish oil (unsaturated fatty acids) and other lipids by GPCRs (Science 2023, Science Advance 2021, PNAS 2023, Nature Metabolism 2023), recognition of amine containing hormones by GPCRs (Cell 2021, 2023, Nature 2023b), bile acids or its derivatives by GPCRs (Nature 2020)."