University of California, San Diego (UCSD) - Section of Cell and Developmental Biology, University of California San Diego - Department of Chemistry and Biochemistry, University of California San Diego (UCSD) - Section of Cell and Developmental Biology, University of California San Diego (UCSD) - Section of Cell and Developmental Biology, University of California San Diego (UCSD) - Section of Cell and Developmental Biology, University of California San Diego (UCSD) - Section of Cell and Developmental Biology, University of California San Diego (UCSD) - Section of Cell and Developmental Biology, University of California San Diego (UCSD) - Section of Cell and Developmental Biology, University of California, San Diego (UCSD) - Department of Chemistry and Biochemistry and University of California, San Diego (UCSD) - Section of Cell and Developmental Biology