Fig. 3.
Protein tyrosine kinase C theta isoform (PRKCQ) kinase activity is required for epidermal growth factor (EGF)-independent growth, Extracellular signal-related kinase (Erk activity) and retinoblastoma (Rb) phosphorylation. a MCF-10A cells expressing vector control, constitutively active (A148E) or kinase-inactive (K409R) PKCθ, were cultured in growth media lacking EGF. Cell lysates were probed with the indicated antibodies. b MCF-10A cells expressing vector control, active or kinase-dead PKCθ, were cultured in media lacking EGF for the indicated number of days and counted