Method for producing DNA from mRNA


Ontology type: sgo:Patent     


Patent Info

DATE

1998-12-22T00:00

AUTHORS

Dong Wei , Veronica M. Maher , Joseph Justin McCormick

ABSTRACT

An improved method for amplifying cDNA fragments corresponding to the mRNA species expressed in cells is described. The method involves priming the mRNA with a first labeled synthetic oligodeoxynucleotide and then reverse transcribing the mRNA to produce a mRNA:cDNA hybrid; and then producing a double-stranded DNA from the hybrid. This DNA is digested with a restriction endonuclease and then a synthetic DNA linker, carrying a second label, is ligated at the cut to the DNA strand containing the 5' phosphate group. The DNA is then isolated with a first reagent which binds the second label. The DNA fragments of interest are then isolated using a second reagent which binds the first label. The isolated DNA fragments are amplified using polymerase chain reaction, and then separated on a sequencing gel. The method is particularly useful for comparing the mRNA species expressed in the cells of various samples. More... »

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