Mutation screening in 90 unrelated ADPKD1 patients was carried out on some
of the exons In the single copy area (37, 38, 39, 44, 45) using genomic PCR
and SSCP. Four novel mutations were found: a 15 bp in-frame deletion in ex
on 39 [nt11449 (del 15)], a 2 bp deletion in exon 44 [nt12252 (del 2)], a G
insertion in exon 44 [nt12290 (Ins G)], and a GTT in-frame deletion in exo
n 45 [nt12601 (del 3)].