1. University of California San Diego, Scripps Institution of Oceanography , La Jolla, CA, USA
2. J. Craig Venter Institute, Microbial and Environmental Genomics Group , La Jolla, CA, USA
3. University of Tuebingen, CMFI Cluster of Excellence , Tuebingen, Germany
4. University of California Riverside, Department of Biochemistry , Riverside, CA, USA