1. Cancer Metabolism and Signaling Networks Program; Sanford Burnham Prebys Medical Discovery Institute; La Jolla CA 9207 USA
2. Department of Molecular; Cellular, and Developmental Biology; University of California; Santa Barbara CA 93106 USA
3. Center for Nanomedicine; University of California; Santa Barbara CA 93106 USA
4. Proteomics Facility; Sanford Burnham Prebys Medical Discovery Institute; La Jolla CA 92037 USA
5. Department of Cellular and Molecular Medicine; Glycobiology Research and Training Center; University of California; San Diego La Jolla CA 92093 USA