1. Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas, USA
2. Molecular and Cell Biology-Mol. Regulation, Baylor College of Medicine, Houston, Texas, USA
3. Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, USA
4. Integrated Microscopy Core at the Gulf Coast Consortium Center for Advanced Microscopy and Image Informatics, Baylor College of Medicine, Houston, Texas, USA
5. Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
6. Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA