1. Division of Biology and Biological Engineering California Institute of Technology Pasadena CA USA
2. Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena CA USA
3. Proteome Exploration Laboratory Beckman Institute, California Institute of Technology Pasadena CA USA
4. Department of Microbiology and The Center for RNA Biology The Ohio State University Columbus OH USA
5. Division of Geological and Planetary Sciences California Institute of Technology Pasadena CA USA