We performed confirmation of constitutional mutations by direct
Sanger sequencing. PCR amplification was performed with 50 ng of genomic DNA
using
Taq DNA polymerase (Applied Biosystems). Primers used to amplify the
coding and flanking noncoding regions of
PIK3R2 were
designed using Primer 3. Double-stranded DNA sequence analysis was performed
using the
Big Dye Terminator chemistry (Applied Biosystems), and reactions
were run on the
ABI 3730_l Genetic Analyzer (Applied Biosystems). Sequence
chromatograms were analyzed using Mutation Surveyor software version 3.30.
Sequences were compared with normal control samples and the reference
sequences for
PIK3R2.
Mirzaa G., Conti V., Timms A.E., Smyser C.D., Ahmed S., Carter M., Barnett S., Hufnagel R.B., Goldstein A., Narumi-Kishimoto Y., Olds C., Collins S., Johnston K., Deleuze J.F., Nitschké P., Friend K., Harris C., Goetsch A., Martin B., Boyle E.A., Parrini E., Mei D., Tattini L., Slavotinek A., Blair E., Barnett C., Shendure J., Chelly J., Dobyns W.B, & Guerrini R. (2015). Characterization of mutations of the phosphoinositide-3-kinase regulatory subunit, PIK3R2, in perisylvian polymicrogyria: a next generation sequencing study. The Lancet. Neurology, 14(12), 1182-1195.