AUTHOR=Boudinot Pierre , Flajnik Martin , Ota Yuko , Rast Jonathan P., Bengten Eva , Clark Thomas , Quiniou Sylvie TITLE=Extraordinary diversity of the CD28/CTLA4 family across jawed vertebrates JOURNAL=Frontiers in Immunology VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2024.1501934 DOI=10.3389/fimmu.2024.1501934 ISSN=1664-3224