Fig4F of [doi:10.1128/MCB.25.24.11113-11121.2005] Mol Cell Biol 2005 25(24):11113-21 [PMID:16314531] Mizugishi K; Yamashita T; Olivera A; Miller GF; Spiegel S; Proia RL, "Essential role for sphingosine kinases in neural and vascular development." © ASM. Reproduced with permission from Molecular and Cellular Biology. Reuse of any Licensed Material requires permission from ASM. Copyright 2005.