1. Department of Molecular Biology and Genetics, Johns Hopkins University, Baltimore, MD, USA.
2. Department of Biology and Computer Science, Johns Hopkins University, Baltimore, MD, USA.
3. Department of Genome Sciences, University of Washington School of Medicine, Seattle, WA, USA.
4. Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA.
5. Institute for Systems Genomics, University of Connecticut, Storrs, CT, USA.
6. Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, USA.
7. UC Santa Cruz Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, USA.
8. Genome Informatics Section, Computational and Statistical Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
9. Department of Bioengineering, University of California Berkeley, Berkeley, CA, USA.
10. Department of Molecular and Cell Biology, University of California Berkeley, Berkeley CA, USA.
11. Howard Hughes Medical Institute, University of Washington, Seattle, WA, USA.