Ludger Johannes has specialized in the field of endocytosis and intracellular trafficking. He and his team study how sugars attached to proteins or lipids influence the transport of biological material into eukaryotic cells. Johannes is research director “classe exceptionnelle”(DRE) at the Institut Nationale de la Santé et de la Recherche Médicale (INSERM, where he was recruited in 1997. He currently directs the Cellular and Chemical Biology department (U1143 INSERM–UMR3666 CNRS) at Institut Curie in Paris, France. He is an elected member of the European Molecular Biology Organization (EMBO], and German Academy of Sciences Leopoldina and an alumnus of the Germany-based Boehringer Ingelheim Fond–Foundation for Basic Research in Medicine and the German Academic Scholarship Foundation Studienstiftung des deutschen Volkes.