passages.id: split_5_test_573_passage
passages.type: progene_text
passages.text: A dominant role for the Raf - MEK pathway in forskolin , 12-O-tetradecanoyl-phorbol acetate , and platelet - derived growth factor - induced CREB ( cAMP - responsive element - binding protein ) activation , uncoupled from serine 133 phosphorylation in NIH 3T3 cells .