1. Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA.
2. Department of Structural and Computational Biology and Molecular Biophysics, Baylor College of Medicine, Houston, TX 77030, USA.
3. Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA.
4. Departments of Neurosciences and Pediatrics, University of California, San Diego, CA 92093, USA.
5. Rady Children’s Hospital, San Diego, CA 92123, USA.
6. Department of Neurology, University of Michigan, Ann Arbor, MI 48109, USA.
7. Geriatric Research Education and Clinical Center, Ann Arbor Veterans Affairs Medical Center, Ann Arbor, MI 48105, USA.
8. Life Technologies, Carlsbad, CA 92008, USA.
9. Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA.
10. Texas Children’s Hospital, Houston, TX 77030, USA.