The Research Training Group "ProMoAge: Protein Modification: A Key Mechanism for Ageing" (RTG 2155) funded by the Deutsche Forschungsgemeinschaft (DFG) welcomes applications for 14 PhD positions. The RTG is based in different institutions of the Martin-Luther-University Halle-Wittenberg, the Friedrich Schiller University Jena, the University Hospital Jena and the Leibniz Institute for Age Research – Fritz Lipmann Institute, Jena, Germany.