1. Protein Information Resource, Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, DC, USA
2. School of Agricultural and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal, Sao Paulo, Brazil
3. Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
4. Protein Information Resource, Center for Bioinformatics and Computational Biology, University of Delaware, Newark, Delaware, USA
5. Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, DC, USA