1. Department of Biochemistry; Groningen Biomolecular Sciences and Biotechnology Institute; Netherlands Proteomics Centre & Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747 AG Groningen The Netherlands
2. Rieveschl Laboratories for Mass Spectrometry; Department of Chemistry; University of Cincinnati; Cincinnati Ohio USA
3. Biochemistry; Institute of Biochemistry and Biology; University of Potsdam; Karl-Liebknecht-Str. 24-25 14467 Potsdam Germany
4. Department of Genetics; University Medical Center Groningen; Groningen The Netherlands
5. Institute of Life and Health Engineering; Jinan University; Huang-Pu Avenue West 601 510632 Guangzhou China