The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2018
Filed:
Dec. 17, 2014
Roche Molecular Systems, Inc., Pleasanton, CA (US);
Stephen G. Will, Oakland, CA (US);
Roche Molecular Systems, Inc., Pleasanton, CA (US);
Abstract
A method is provided for allele-specific amplification, utilizing a blocking oligonucleotide including at least one nucleotide with a base covalently modified at the exocyclic amino group, the blocking oligonucleotide being perfectly complementary to a wild type (WT) sequence when hybridized forming a first complex having a first melting temperature (Tm), the blocking oligonucleotide being partially non-complementary, at one or more nucleotides, to a target mutant (MT) sequence when hybridized forming a second complex having a second melting temperature (Tm), wherein the first Tm is higher than the second Tm and having at least one nucleotide with a base covalently modified at the exocyclic amino group, wherein the blocking oligonucleotide becomes unhybridized from the target MT sequence during amplification but remains hybridized with the WT sequence inhibiting amplification of the WT sequence utilizing a polymerase lacking 5'-3′ nuclease activity.