Download MendeleyStructural basis for receptor selectivity and inverse agonism in S1P 5 receptors.
Lyapina, E., Marin, E., Gusach, A., Orekhov, P., Gerasimov, A., Luginina, A., Vakhrameev, D., Ergasheva, M., Kovaleva, M., Khusainov, G., Khorn, P., Shevtsov, M., Kovalev, K., Bukhdruker, S., Okhrimenko, I., Popov, P., Hu, H., Weierstall, U., Liu, W., Cho, Y., Gushchin, I., Rogachev, A., Bourenkov, G., Park, S., Park, G., Hyun, H.J., Park, J., Gordeliy, V., Borshchevskiy, V., Mishin, A., Cherezov, V.(2022) Nat Commun 13: 4736-4736
- PubMed: 35961984
- DOI: https://doi.org/10.1038/s41467-022-32447-1
- Primary Citation of Related Structures:
7YXA - PubMed Abstract:
The bioactive lysophospholipid sphingosine-1-phosphate (S1P) acts via five different subtypes of S1P receptors (S1PRs) - S1P 1-5 . S1P 5 is predominantly expressed in nervous and immune systems, regulating the egress of natural killer cells from lymph nodes and playing a role in immune and neurodegenerative disorders, as well as carcinogenesis. Several S1PR therapeutic drugs have been developed to treat these diseases; however, they lack receptor subtype selectivity, which leads to side effects. In this article, we describe a 2.2 Å resolution room temperature crystal structure of the human S1P 5 receptor in complex with a selective inverse agonist determined by serial femtosecond crystallography (SFX) at the Pohang Accelerator Laboratory X-Ray Free Electron Laser (PAL-XFEL) and analyze its structure-activity relationship data. The structure demonstrates a unique ligand-binding mode, involving an allosteric sub-pocket, which clarifies the receptor subtype selectivity and provides a template for structure-based drug design. Together with previously published S1PR structures in complex with antagonists and agonists, our structure with S1P 5 -inverse agonist sheds light on the activation mechanism and reveals structural determinants of the inverse agonism in the S1PR family.
Organizational Affiliation:
Research Сenter for Molecular Mechanisms of Aging and Age-related Diseases, Moscow Institute of Physics and Technology, Dolgoprudny, 141701, Russia.
