Tyrosine Sulphation of Sphingosine 1-Phosphate 1 (S1P1) is Required for S1P-mediated Cell Migration in Primary Cultures of Human Umbilical Vein Endothelial Cells

Y. L Huang, H. S Lin, S. U Chen and H. Lee

The Journal of Biochemistry 146 ( 6 ): 815 - 820 , 2009