Mutation detection using muts and reca

C - Chemistry – Metallurgy – 12 – Q

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C12Q 1/68 (2006.01) C07H 21/02 (2006.01)

Patent

CA 2439098

A method for detecting mutations and polymorphisms, including single nucleotide polymorphisms (SNP's), is based on the use of RecA-like recombinase protein and a MutS-like mismatch binding protein. RecA coated, specific DNA oligonucleotide probes (RecA filaments) are used for homology searching in duplex DNA. Location of homologous sequences results in the formation of D- loop structures containing a duplex region comprised of the oligonucleotide probe and one strand of the test DNA. Mismatches or unpaired bases in the duplex region are substrates for MutS binding. Co-localization of MutS and oligonucleotide or RecA labels is diagnostic of specific sequence differences between the probe and test DNAs. Also provided are compositions and kits useful for practicing the methods of the present invention.

L'invention concerne un procédé permettant la détection de mutations et de polymorphismes d'un seul nucléotide (SNP : single nucleotide polymorphisms). Ce procédé repose sur l'utilisation de protéines de recombinase de type RecA et d'une protéine de liaison de mésappariement de type MutS. Des sondes oligonucléotidiques d'ADN spécifiques recouvertes de RecA (filaments Reca) sont utilisées pour la recherche d'homologies dans l'ADN double brin. La localisation de séquences homologues entraîne la formation de structures de boucle D contenant une région à double brin constituée de la sonde oligonucléotidique et d'un brin de l'ADN testé. Les mésappariements ou les bases non appariées de la région à double brin forment des substrats pour la liaison de MutS. Une co-localisation de MutS et de marqueurs oligonucléotidiques ou RecA indique des différences de séquence spécifiques entre la sonde et les ADN testés. L'invention concerne également des compositions et des coffrets servant à la mise en oeuvre des procédés décrits.

LandOfFree

Say what you really think

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

Rating

Mutation detection using muts and reca does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mutation detection using muts and reca, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mutation detection using muts and reca will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2009054

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