Abstract
Single-strand conformational polymorphism (SSCP) is the most widely used method for p53 gene mutation screening. Nucleotide sequence analysis is considered more sensitive for detection of mutations. We established a genomic semi-automated cycle sequencing protocol suitable for p53 gene mutation screening. The technique was applied to 44 SSCP-negative frozen ovarian cancer samples: Eleven mutations (11/44, 25%) were found, 6 point missense mutations, 3 silent point mutations, 1 nonsense mutation and 1 single-base deletion. Heterozygous mutations were readily detectable. Genomic semi-automated cycle sequencing is a sensitive, time-effective screening method requiring only small amounts of tumor tissue.
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