1. Department of Biochemistry and Molecular Biophysics University of Arizona, Tucson, Arizona
2. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA
3. Laboratory of Protein Biochemistry and Protein Engineering, Department of Biochemistry, Physiology and Microbiology, University of Ghent, Ghent, Belgium
4. Technische Universität München, Freising, Germany
5. Department of Earth Sciences, University of Southern California, Los Angeles, California