Fig. 5. Quantification of DNA abundance in the DHFR oriß region by
real-time PCR. (A) Map of the DHFR initiation zone, containing the
ß, ß' and
initiation sites and encompassing the
DHFR and 2BE2121 genes. The arrows represent the location of
the amplification product using a primer set within the oriß region. (B)
Quantitative realtime PCR using the LightCycler instrument, using a primer set
within the oriß region or
17 kb downstream from the DHFR
gene (AF028017), with DNA template extracted from the immunoprecipitation with
anti-Ku70, anti-Ku86, anti-clone 162 antibodies or NGS from crosslinked or
untreated CHO K1 or xrs-5 cells. Each bar represents two experiments,
and one standard deviation is indicated.