passages.id: split_1_test_3554_passage
passages.type: progene_text
passages.text: The activity of RLPK stimulated by epidermal growth factor was not inhibited by several known protein kinase C inhibitors nor by rapamycin , a known specific inhibitor for p70 ( RSK ) , but could be inhibited by herbimycin A , a tyrosine kinase inhibitor , and partially inhibited by PD98059 or SB203580 , inhibitors for the mitogen - activated protein kinase pathways .