1. Department
of Chemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada
2. Carleton
Mass Spectrometry Centre, Carleton University, Ottawa, Ontario K1S 5B6, Canada
3. Department
of Biology, Carleton University, Ottawa, Ontario K1S 5B6, Canada
4. Institute
of Biochemistry, Carleton University, Ottawa, Ontario K1S 5B6, Canada