tokens: Ab-MLV strains expressing P70 / S2 failed to transform NIH 3T3 cells and demonstrated a greatly reduced capacity to mediate signaling events associated with the Ras dependent mitogen activated protein ( MAP ) kinase pathway .
folded_tokens: ab-mlv strain express p70 / s2 fail to transform nih 3t3 cell and demonstrate a greatly reduce capacity to mediate signaling event associate with the ra dependent mitogen activate protein ( map ) kinase pathway .