recombinant/native protein, cdk3/ccne1 (human) recombinant protein, human cdk3 (np_001249.1, 1 a.a. - 305 a.a.) and ccne1 (np_001229 .1, 1 a.a. - 410 a.a.) with gst tag expressed in baculovirus infected sf21 cells. 1 * 5 µG