Kalata B7, a cyclotide isolated from Oldenlandia affinis DC (Rubiaceae), possesses membrane-permeating capabilities and acts as a partial agonist of oxytocin- and vasopressin V1a-receptors [1] [2].
SB-747651A is a potent, ATP-competitive inhibitor of mitogen- and stress-activated kinase 1 (MSK1, IC50 = 11 nM). It targets the N-terminal kinase domain. SB-747651A inhibits MSK1, MSK2, PKA, PKB, RSK and p70S6K activity in cells.