treatment of quiescent human embryonic lung fibroblastic cells ( tig-3 ) with 10 nm epidermal growth factor ( egf ) resulted in 4-6-fold activation of a protein kinase activity in cell extracts that phosphorylated microtubule-associated protein 2 ( map2 ) on serine and threonine residues in vitro .
C0016030
fibroblastic cells
C0007634
cell