Kinase and phosphatase assays
First Claim
Patent Images
1. A composition of matter comprising:
- a) a peptide having a length from five to fifty amino acids and comprising a recognition motif for a serine/threonine kinase selected from the group consisting of PRAFSVG (SEQ ID NO;
56) and RRQFSLR (SEQ ID NO;
57); and
b) a first detectable moiety,wherein the first detectable moiety is attached to the peptide.
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Accused Products
Abstract
Compositions, methods, and kits for detecting and monitoring kinase or phosphatase activity are described. The compositions typically include a peptide, a detectable moiety, and a protease cleavage site. Modification of a peptide by a kinase or phosphatase alters the proteolytic sensitivity of the peptide, resulting in a change of a detectable property of the composition. Panel assays for determining substrates or modulators of kinase or phosphatase activity are also described.
260 Citations
42 Claims
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1. A composition of matter comprising:
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a) a peptide having a length from five to fifty amino acids and comprising a recognition motif for a serine/threonine kinase selected from the group consisting of PRAFSVG (SEQ ID NO;
56) and RRQFSLR (SEQ ID NO;
57); andb) a first detectable moiety, wherein the first detectable moiety is attached to the peptide. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 20, 21, 22, 23, 24, 25, 26, 27)
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2. A composition of matter comprising:
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a) a peptide having a length from five to fifty amino acids and comprising a recognition motif for a serine/threonine kinase selected from the group consisting of PRAFSVG (SEQ ID NO;
56) and RRQFSLR (SEQ ID NO;
57); andb) a first detectable moiety; and c) a second detectable moiety; wherein the first detectable moiety is attached to the peptide. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 32, 33, 34, 35, 36, 37, 38, 39)
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28. A composition of matter comprising:
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a) a peptide having a length from five to fifty amino acids and comprising a protein phosphatase recognition motif selected from the group consisting of PRAFS*VG (SEQ ID NO;
106) and RRQFS*LR (SEQ ID NO;
107), wherein S* represents a phosphorylated serine; andb) a first detectable moiety, wherein the first detectable moiety is attached to the peptide. - View Dependent Claims (29, 30, 31)
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40. A composition of matter comprising:
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a) a peptide having a length from five to fifty amino acids and comprising a protein phosphatase recognition motif selected from the group consisting of PRAFS*VG (SEQ ID NO;
106) and RRQFS*LR(SEQ ID NO;
107), wherein S* represents a phosphorylated serine;b) a first detectable moiety, wherein the first detectable moiety is attached to the peptide; and c) a second detectable moiety. - View Dependent Claims (41, 42)
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Specification