1. Howard Hughes Medical Institute and Center for Vaccine Development, University of Maryland School of Medicine, 685 West Baltimore Street, Baltimore, MD 21201, USA.
2. Malaria Research and Training Center, Department of Epidemiology of Parasitic Diseases, University of Bamako, Bamako, Mali, West Africa.
3. University of Maryland School of Pharmacy, Baltimore, MD 21201, USA.
4. Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD 20742, USA.
5. School of Life Sciences, Arizona State University, Tempe, AZ 85287, USA.