c("transfection: empty vector", "cell line: HEK293T")
c("transfection: TET1-CD expression plasmid", "cell line: HEK293T")
c("transfection: mTET1-CD expression plasmid", "cell line: HEK293T")
c("transfection: mTET1-FL expression plasmid", "cell line: HEK293T")