The p120cas gene encodes a protein tyrosine kinase substrate that associates with the cell-cell adhesion protein complex containing E-cadherin and its cytoplasmic cofactors α-catenin, β-catenin, and plakoglobin. Like other components of the cadherin/catenin complex, defects in p120cas may contribute to cell malignancy. We have determined the chromosomal location of the p120cas gene in human and mouse using fluorescence in situ hybridization and interspecific backcross analysis, respectively. The human p120cas gene (CTNND) is localized immediately adjacent to the centromere on the long arm of chromosome 11 in band 11q11. The murine p120cas gene (Catns) was assigned to the middle of chromosome 2. Neither locus is currently known to be associated with disease or malignancy.
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