Location and extent of chromosome 17q12 microdeletion. A UCSC Genome Browser (March 2006 (hg18) assembly) view of the flanking region of chromosomal region 17q12 (chr17:31,572,908–33,673,672) is shown, together with OMIM genes, Refseq genes, short regulatory RNAs and segmental duplications. The bottom panel shows the location and extent of the 1.4-Mb microdeletion detected in the proband reported here (31,923,035–33,323,544).