Chromosome 6 has been shown to contain at band q27 a minimal region of deletion associated with epithelial ovarian cancers and AF6, a gene disrupted in acute myeloid leukemia with t(6;11)(q27;q23). Using rapid amplification of cDNA ends by polymerase chain reaction, the breakpoint in AF6 was confirmed and a cDNA clone identified. This clone was used as a probe to screen a chromosome 6 cosmid library, and a single cosmid C-109F0645 was isolated. By fluorescence in situ hybridization, C-109F0465 was found to map distal to the critically deleted region associated with ovarian malignancies. AF6 is therefore distinct from and lies telomeric to this region.
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Saha et al. (1995) studied this question.
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