Detection of nucleic acid differences using combined...

C - Chemistry – Metallurgy – 12 – Q

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C12Q 1/68 (2006.01)

Patent

CA 2430503

The present invention is a method for detecting DNA sequence differences including single nucleotide mutations or polymorphisms, one or more nucleotide insertions, and one or more nucleotide deletions. Labeled heteroduplex PCR fragments containing base mismatches are prepared. Endonuclease cleaves the heteroduplex PCR fragments both at the position containing the variation (one or more mismatched bases) and to a lesser extent, at non-variant (perfectly matched) positions. Ligation of the cleavage products with a DNA ligase corrects non-variant cleavages and thus substantially reduces background. This is then followed by a detection step in which the reaction products are detected, and the position of the sequence variations are determined (1-26).

La présente invention concerne une méthode permettant de détecter des différences de séquences ADN, notamment des mutations ou des polymorphismes mononucléotidiques, une ou plusieurs insertions de nucléotides, et une ou plusieurs délétions de nucléotides. On prépare des fragments ACP hétéroduplex marqués contenant des mésappariements de base. L'endonucléase clive lesdits fragments ACP hétéroduplex à la fois à la position contenant la variation (une ou plusieurs bases mésappariées) et dans une moindre mesure, à des positions non variantes (appariements parfaits). La ligation des produits de clivage avec une ADN ligase corrige les clivages non variants, réduisant ainsi sensiblement le bruit. Il s'ensuit une étape de détection dans laquelle on détecte les produits de réaction, et on détermine la position des variations de séquence.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Detection of nucleic acid differences using combined... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detection of nucleic acid differences using combined..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of nucleic acid differences using combined... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1664144

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.