Tag reagent and assay method
First Claim
1. A reagent comprisinga) an analyte moiety comprising at least two analyte residues, and linked to b) a tag moiety comprising one or more reporter groups suitable for detection by mass spectrometry after being cleaved from the reagent, excluding oligonucleotides, wherein a reporter group identifies an analyte residue, and its position in the analyte moiety, and wherein the analyte moiety has a known predetermined sequence which can be specifically identified by mass spectrometry detection of the tag moiety.
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Abstract
This invention provides reagents, libraries and sets of the reagents, and assay methods using the reagents, the reagents comprising an analyte moiety and a tag moiety, wherein the tag moiety contains information defining the identify and location of the analyte residues of the analyte moiety which is detectable by mass spectrometry.
39 Citations
27 Claims
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1. A reagent comprising
a) an analyte moiety comprising at least two analyte residues, and linked to b) a tag moiety comprising one or more reporter groups suitable for detection by mass spectrometry after being cleaved from the reagent, excluding oligonucleotides, wherein a reporter group identifies an analyte residue, and its position in the analyte moiety, and wherein the analyte moiety has a known predetermined sequence which can be specifically identified by mass spectrometry detection of the tag moiety.
Specification