1. Department for Drug Design and Optimization Helmholtz Institute for Pharmaceutical Research Saarland Campus E8.1 66123 Saarbrücken Germany
2. Workgroup Structural Biology of Biosynthetic Enzymes Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) Helmholtz Centre for Infection Research (HZI) Saarland University Saarbrücken Germany
3. Institute of Infection Immunology, TWINCORE Centre for Experimental and Clinical Infection Research A Joint Venture between the Medical School Hannover (MHH) and the Helmholtz Centre for Infection Research (HZI) Hannover Germany
4. Department of Pharmacy Pharmaceutical and Medicinal Chemistry Saarland University Campus C2.3 66123 Saarbrücken Germany