Abstract
Three members of the human zinc finger Kru¨ppel family, ZNF11/KOX2, ZNF22/KOX15, and ZNF25/KOX19, have been regionally localized to the pericentromeric region of chromosome 10 by in situ chromosomal hybridization and somatic cell hybrid analysis. ZNF25/KOX19 is located centromeric to a breakpoint in chromosome band 10q11.2 in the chromosome region 10p11.2–q11.2, whereas ZNF22/KOX15 maps distal to it in band 10q11.2. Sequences hybridizing to the KOX2 probe are found at two loci, ZNF11A and ZNF11B, that map proximal and distal to the 10q11.2 breakpoint, respectively. The two ZNF11 loci probably represent two related sequences in 10p11.2–q11.2. This ciuster of ZNF/KOX genes is of particular interest since the loci for multiple endocrine neoplasia type 2A and 2B (MEN2A and MEN2B) syndromes have been assigned to this region by linkage analysis.
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