D-erythro-Sphingosine (Erythrosphingosine) hydrochloride is a specific TRPM3 activator. D-erythro-Sphingosine also induces retinoblastoma protein dephosphorylation In Vitro Extracellular application of D-erythro-Sphingosine (20 μM) induces an increase in [Ca 2+ ] i in TRPM3-transfected HEK293 cells within 20 to 30 s after start of application, whereas nontransfected control cells (NT) shows only very small responses. D-erythro-Sphingosine (10 μM) induces currents through TRPM3. Induction of retinoblastoma protein dephosphorylation by D-erythro-Sphingosine (500 nM; 24 h) precede inhibition of growth and a specific arrest in the G0/G1 phase of the cell cycle. MCE has not independently confirmed the accuracy of these methods. They are for reference only. Form:Solid IC50& Target:TRPM3|Retinoblastoma protein