Loss of heterozygosity at chromosome 9p21 (INK4-p14ARF locus): homozygous deletions and mutations in the p16 and p14ARF genes in sporadic primary melanomas.

Abstract excerpt

Loss of heterozygosity (LOH) was determined in 45 sporadic primary melanomas at six polymorphic microsatellite markers that flank the INK4a (p16-p14ARF) locus on chromosome 9p21. We also determined allelic loss at two markers on chromosome 9q and two markers at the Rb locus on chromosome 13. Homozygous deletion of the p16 and p14ARF genes was determined by a fluorescent-based quantitative multiplex polymerase...

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