About the Authors
Department of Molecular Genetics and Microbiology, University of Florida College of Medicine, Gainesville, Florida, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: KAJ JLR. Performed the experiments: EYS CRF SJC. Analyzed the data: EYS CRF JLR. Contributed reagents/materials/analysis tools: EYS CRF SJC KAJ JLR. Wrote the paper: EYS JLR.