989bp deletion. Primers used: RB1537 (external left): CAAGCTTAATTTGCACACAATGCGTCAG; RB1540 (external right): AGAAGAGGCAAGAATGGAACTTGTGCG; RB1538 (internal left): AACAATTTCCGCTTATTTTCAGCGTTTG; RB1539 (internal right): CTGAACCATTGAAAGCTTTTCAGATC. Deletion breakpoints (T09B4 coordinates): 32756/33746 through 32757/33747.