Divergent activation of the RXFP1 relaxin receptor by protein and small molecule agonists
James Osei‐Owusu, Tristan Girbau, Xunan Wang, Jeffrey S. Smith, Pengxiang Shen, Sarah C. Erlandson, Amanda K. Williamson, Xiaojing Cong, Mark W. Grinstaff, Daniel Kahne, Chérine Bechara, Andrew C. Kruse
This study presents cryo-EM structures of RXFP1 bound to relaxin-2 and AZD5462, revealing distinct activation mechanisms for protein and small-molecule agonists.
bioRxiv · Jun 11, 2026 · PreprintBiochemistry