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Table 2 Analytical sensitivity in a background of unmethylated DNA, determined in three independent experiments, each in triplicate

From: Performance of a methylation specific real-time PCR assay as a triage test for HPV-positive women

Proportion of methylated DNA in 20 ng input DNA

Amount of methylated DNA

ASTN1

DLX1

ITGA4

RXFP3

SOX17

ZNF671

ACHE

IDS

10%

2 ng

9/9

9/9

9/9

9/9

9/9

9/9

9/9

9/9

5%

1 ng

9/9

9/9

9/9

9/9

9/9

9/9

9/9

9/9

2%

0.4 ng

9/9

9/9

9/9

9/9

9/9

9/9

9/9

9/9

1%

0.2 ng

9/9

9/9

9/9

9/9

9/9

9/9

9/9

8/9

0.5%

0.1 ng

9/9

9/9

9/9

9/9

9/9

9/9

9/9

8/9

0.2%

0.04 ng

9/9

9/9

9/9

9/9

8/9

9/9

9/9

7/9

  1. For all six markers and IDS, unmethylated, bisulfite-converted DNA was taken as background DNA for all primer pairs