1. Department of Physiological Chemistry BioMedical Center (BMC) Ludwig Maximilians University of Munich Martinsried Germany
2. International Max Planck Research School for Molecular and Cellular Life Sciences Martinsried Germany
3. Protein Analysis Unit (ZfP) BioMedical Center (BMC) Ludwig Maximilians University of Munich Martinsried Germany
4. Department of Biochemistry Gene Center Ludwig Maximilians University of Munich Munich Germany
5. Department of Biophysics and Biochemistry University of California San Francisco (UCSF) San Francisco CA USA