Methods and kits for fractionating a population of DNA molecules

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

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435 911, 435 912, 435810, 436501, 536 221, 536 231, 536 243, 536 2431, 536 2432, 536 2433, 935 77, 935 78, 935 88, C12Q 168, C12P 1934

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055567509

ABSTRACT:
A diagnostic method for detecting a base pair mismatch in a DNA duplex, comprising the steps of contacting at least one strand of a first DNA molecule with the complementary strand of a second DNA molecule under conditions such that base pairing occurs contacting a DNA duplex potentially containing a base pair mismatch with a mispair recognition protein under conditions suitable for the protein to form a specific complex only with the DNA duplex having a base pair mismatch, and not with a DNA duplex lacking a base pair mismatch, and detecting any complex as a measure of the presence of a base pair mismatch in the DNA duplex.

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