1. Laboratory of Biomolecular NMR St. Petersburg State University 199034 St. Petersburg Russia
2. Department of Genetics and Biotechnology St. Petersburg State University 199034 St. Petersburg Russia
3. Laboratory for Proteomics of Supra-Organismal Systems All-Russia Research Institute for Agricultural Microbiology (ARRIAM) 196608 St. Petersburg Russia
4. Department of Chemistry Purdue University West Lafayette IN 47907 USA