Localization of the oncogene c‐erbA1 immediately proximal to the acute promyelocytic leukaemia breakpoint on chromosome 17

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Abstract
Using in situ hybridization, c-erbA1 has been mapped immediately distal to the translocation breakpoint on chromosome 17 in fibroblasts with a karyotype 46,XX, t(15;17)(q22;q11). Previous work has shown that c-erbA1 is proximal to the translocation breakpoint on chromosome 17 in the t(15;17)(q22;q12-21) in acute promyelocytic leukaemia. The oncogene can therefore be localized to the region of chromosome 17 between the breakpoints in 17q11 and 17q12-21.