Table 1. Base changes identified through DHPLC mutation screening and direct sequencing.

Exon	Change	DbSNP reference	Intronic/exonic	Positiona	No. of individuals (N=49)
2	G-to-A	—	Intronic	−28 bp	1
5	C-to-G	—	Exonic	+132 bp	1
9	C-to-T	—	Intronic	+13 bp	1
15	C-to-A	rs7638391	Intronic	+19 bp	10
16	G-to-T	—	Intronic	−14 bp	1

^aPosition is given as upstream (−) or downstream (+) of exon/intron boundary.