XLAAD The pedigree below is from a family in which X-Linked…

XLAAD The pedigree below is from a family in which X-Linked Autoimmunity-Allergic Disregulation (XLAAD) syndrome is segregating. Members have been typed for 8 loci on the X chromosome (A –> H). The bars represent haplotypes and the numbers refer to particular alleles at each locus (so individual I-2 is heterozygous at locus A, with alleles 158 and 168).  (Remember you can zoom in to see the allele numbers better, although you don’t really need that info to answer the question). (Data from Chatlia et. al, J Clin Invest. 2000;106(12):R75-R81).   Based on the data in this pedigree, in which region of the chromosome is the disease allele?