1. Laboratory of Biochemistry and Biophysics, Butantan Institute, São Paulo, Brazil.
2. Laboratory of Mass Spectrometry, CAT/Butantan Institute, São Paulo, Brazil.
3. Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Brazil.
4. Brazilian Center for Protein Research, University of Brasília, Brasília, Brazil.
5. Atheris Laboratories, Geneva, Switzerland.
6. Laboratory of Molecular Biology, IPEN, São Paulo, Brazil.