Combining deep sequencing, proteomics, phosphoproteomics, and functional screens to discover novel regulators of sphingolipid homeostasis by Lebesgue, N, Megyeri, M, Cristobal, A, Scholten, A, Chuartzman, S, Voichek, Y, Scheltema, R, Mohammed, S, Futerman, A, Schuldiner, M, Heck, A, Lemeer, S