1 National Institutes of Health, National Human Genome Research Institute, Translational and Functional Genomics Branch, Microbial Genomics Section, Bethesda, Maryland, USA.
2 School of Life Sciences, Arizona State University, Tempe, Arizona, USA.
3 National Institutes of Health, National Cancer Institute, Center for Cancer Research, Bethesda, Maryland, USA.
4 University of Minnesota Medical School, Minneapolis, Minnesota, USA.