Luminex Corporation

Eragen Biosciences, Inc.

Craig S Richmond

James Robert Prudent

David J Marshall

Christopher B Sherrill

Jerod L Ptacin

Jennifer K Grenier

Eric B Roesch

Christopher W Scherrer

Gideon Shapiro

Simona Jurczyk

Christopher B Scherrill

Solid support assays using non-standard bases are described. A capture oligonucleotide comprising a molecular recognition sequence is attached to a solid support and hybridized with a target. In some instances, the molecular recognition sequence includes one or more non-standard bases and hybridizes to a complementary tagging sequence of the target oligonucleotide. In other instances, incorporation of a non-standard base (e.g., via PCR or ligation) is used in the assay.

Solid support assay systems and methods utilizing non-standard bases

Assays using non-natural bases are described. In one embodiment, the method involves contacting a sample suspected of containing the target nucleic acid with a polymerase and first and second primers; amplifying the target nucleic acid by PCR using the first and second primers to generate an amplification product having a double-stranded region and a single-stranded region that comprises the non-natural base; contacting the sample with a reporter comprising a label and a non-natural base that is complementary to the non-natural base of the single-stranded region; annealing at least a portion of the reporter to the single-stranded region of the amplification product; and correlating a signal of the label with the presence of the target nucleic acid in the sample. The invention also provides corresponding kits for use in detecting target nucleic acids in a sample.

Materials and methods for detection of nucleic acids

Solid support assays using non-standard bases are described. A capture oligonucleotide comprising a molecular recognition sequence is attached to a solid support and hybridized with a target oligonucleotide. In some instances, the molecular recognition sequence includes one or more non-standard bases and hybridizes to a complementary tagging sequence of the target oligonucleotide. In other instances, incorporation of a non-standard base (e.g., via PCR or ligation) is used in the assay.

Assays using non-natural bases are described. In one embodiment, the method involves contacting a sample suspected of containing the target nucleic acid with a polymerase and first and second primers; amplifying the target nucleic acid, if present in the sample, by PCR using the first and second primers to generate an amplification product having a double-stranded region and a single-stranded region that comprises the non-natural base; contacting the sample with a reporter comprising a label and a non-natural base that is complementary to the non-natural base of the single-stranded region; annealing at least a portion of the reporter to the single-stranded region of the amplification product; cleaving, after annealing, at least a portion of the reporter to release at least one reporter fragment; and correlating the release of the at least one reporter fragment with the presence of the target nucleic acid in the sample. The invention also provides corresponding kits for use in detecting target nucleic acids in a sample. Alternatively, the reporter can be incorporated into the amplification product rather than annealing and then cleaving.

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Madison, WI, United States of America

Craig S Richmond