Table 1.

Approximate breakpoint positions (based on the known/reported marker positions) of previously established deleted regions on 22q11 region.

ID	Proximal Breakpoint	Distal Breakpoint	Reference
BM-41/308/293	17063468	20207821	Carlson et al 1997
BM-14	17063468	18725000	Carlson et al 1997
BM-8	17383947	18725000	Carlson et al 1997
G	17579237	19600433	Carlson et al 1997
2.3 Mb Deletion	17001842	19356929	Current Study