1. Department of Biology, Duke University , Durham, North Carolina, USA
2. The Biodesign Center for Fundamental and Applied Microbiomics, Center for Evolution and Medicine, School of Life Sciences, Arizona State University , Tempe, Arizona, USA
3. Duke Lemur Center , Durham, North Carolina, USA
4. Structural Biology Research Unit, Department of Integrative Biomedical Sciences, University of Cape Town , Cape Town, South Africa