Figure 1

The Meth-DOP-PCR assay. (a) Outline of a typical Meth-DOP-PCR experiment compared to direct MSP. The sequence of the DOP primer for native DNA and those for the modified DNA are indicated. N=A, C, G, T; H=A, C, T; D=A, G, T. (b) Requirement for the low-stringency amplification step. Lane A: 100 bp ladder. The modified DNA was subjected to Meth-DOP-PCR as described in Materials and methods (lane B) or omitting the enzyme only in the low stringency step (lane C).