Expanded DMPK repeats in dizygotic twins referred for diagnosis of autism versus absence of expanded DMPK repeats at screening of 330 children with autism

Figures & data

Figure 1 LR-PCR of the DMPK gene fragment containing the CTG repeat in the father (lane 1), elder brother (lane 2), twin A (lane 3), and twin B (lane 4).

Notes: Lane M contains a DNA fragment size marker (1 kb Plus DNA ladder; Invitrogen/Thermo Fisher Scientific, Waltham, MA, USA). Normal alleles have a length up to 477 bp, expanded alleles are longer than 522 bp.
Abbreviations: bp, base pairs; DNA, deoxyribonucleic acid; LR-PCR, long-range polymerase chain reaction.