Methods for detecting a plurality of analytes by mass spectrometry
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United States of America Patent
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Nov 18, 2003
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app pub date -
Nov 9, 2001
filing date -
Apr 30, 1999
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Abstract
The invention provides a method for detecting a target analyte, by: (a) contacting one or more target analytes with a set of first and second binding reagents under conditions sufficient for binding of a target analyte with the first and second binding reagents, each of the first binding reagents containing a cleavage-inducing moiety and a target binding moiety, each of the second binding reagents containing a tagged probe having a mass modifier region attached to a target binding moiety by a cleavable linkage, the cleavable linkage being susceptible to cleavage when in proximity to an activated cleavage-inducing moiety; (b) activating the cleavage-inducing moiety to release a tag reporter, and (c) detecting a mass of the tag reporter, the mass uniquely corresponding to a known target analyte.
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