Nature CommunicationsStructure and function of the human apoptotic scramblase Xkr4Sayan ChakrabortyZhang FengSangyun LeeOmar E. AlvarengaAniruddha PandaShuming ZhangRenato BruniGeorge KhelashviliKallol GuptaAlessio Accardi2025-08-08Full textDOI https://doi.org/10.1038/s41467-025-62739-1