(A and B) RT-PCR analysis of
CADPS2 mRNA in blood from autistic patients
(a1–a16) (A) and healthy control subjects
(c1–c24) (B). A single major band (661 bp) is
apparent in the control individuals. An additional band (381 bp) that
resulted from skipping of exon 3 was detected in patients a2, a4, a5, and
a13. The primers used are indicated on the corresponding exons by arrows. M,
100-bp ladder molecular size marker (from 200 bp at the bottom to 1000 bp at
the top). (C) Sequencing pattern of the aberrant RT-PCR product
from patient a4. The arrows indicate exon 2–exon 4 in the frame
without exon 3. The same results were obtained in 3 other patients (a2, a5,
and a13).