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Table 1 Analytical sensitivity, 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

Input DNA

Corresponding cellsa

ASTN1

DLX1

ITGA4

RXFP3

SOX17

ZNF671

ACHE

IDS

0.3 ng

45 cells

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

9/9

0.2 ng

30 cells

n.d.

n.d.

n.d.

n.d.

9/9

n.d.

n.d.

9/9

0.1 ng

15 cells

9/9

9/9

9/9

9/9

9/9

9/9

9/9

9/9

0.05 ng

7.5 cells

9/9

9/9

9/9

9/9

6/9

9/9

9/9

6/9

0.025 ng

4 cells

9/9

8/9

8/9

8/9

5/9

8/9

4/9

4/9

0.01 ng

1.5 cells

5/9

6/9

5/9

5/9

2/9

5/9

2/9

1/9

0.005 ng

0.7 cells

3/9

4/9

0/9

3/9

1/9

4/9

2/9

1/9

0.002 ng

0.3 cells

0/9

0/9

1/9

2/9

0/9

1/9

0/9

n.d.

0.001 ng

0.15 cells

1/9

2/9

2/9

1/9

n.d.

0/9

0/9

n.d.

  1. n.d. not done
  2. aAssuming one cell contains 6-7 pg DNA