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Temporal temperature gradient electrophoresis (TTGE) gel for TP53 exon 6 showing normal and aberrantly migrating bands. All patients possess wild-type bands while patient 6 possesses an additional aberrantly migrating band. Subsequesnt dideoxy sequencing revealed this band to represent a polymorphism in codon 213. Cell lines LoVo and BxPc3 are wild-type and mutant controls, respectively.
