Identification of a direct interaction between the Fab domains of IgG antibodies and human FcRn upon IgG-FcRn complex formation. - Trabjerg, Esben; Nilsen, Jeannette; Tollefsrud Gjølberg, Torleif; Andersen, Jan Terje; Leitner, Alexander; Rand, Kasper D. (Communications Biology, 2025)