ATF1 and infection: The increase in expression is significant (p<0.05) for all three transcription factors in their respective overexpressors, but during infection only for aTF1. Q-RT-PCR confirmed a significant increase of aTF1 expression in aTF1 overexpressors and during infection, but could not confirm significant differences for cTF1 and SGE1 transcript abundance (S7 Fig).