Sphingosine Kinase 2/SPHK2 Small Molecules and Peptides

Sphingosine Kinase 2 (SPHK2) is one of two enzymes that catalyze the phosphorylation of Sphingosine to form Sphingosine 1-phosphate (S1P). SPHK2 is 654 amino acids (aa) in length with a predicted molecular mass of 69 kDa. The mouse and rat orthologs share 84% and 85% aa sequence identity with the human protein, respectively. Three human SPHK2 splice variants have been identified. While both SPHK1 and SPHK2 generate S1P, the effects of SPHK2 signaling oppose those of SPHK1. SPHK1 activation ...