Hybridisation was performed using a commercially available kit (GEHealthcare, Milan) in accordance with the instructions of the manufacturer. The PCR primers were designedonBlast(8)(TableI).DNAextraction and purification were performed using a commercial kit and 2× Master mix (Mo Bio Laboratories, Inc., Carlsbad, California). Amplification was performed on the thermal cycler GeneAmp PCR system 9700 (Applied Biosystems, Carlsbad, California) in the followingconditions: 94°Cfor5secasinitialdenaturation 33cycles of: 94°C for 30sec, 53°C for 30sec, 72°C for 30sec and final extension at 72°C for7sec.