5-Iodotubercidin (S8314-GRP)

5-Iodotubercidin (NSC 113939, 5-ITu) is a potent adenosine kinase inhibitor with IC50 of 26 nM. It inhibits nucleoside transporter, CK1, insulin receptor tyrosine kinase, phosphorylase kinase, PKA, CK2 and PKC.