Assay methods
First Claim
1. A method for identifying an agent which binds to and/or modulates a SEP polypeptide comprising contacting said agent with a polypeptide comprising:
- SEQ ID NO;
2, an amino acid sequence encoded by the polynucleotide sequence of SEQ ID NO;
1 or SEQ ID NO;
5;
or a polypeptide encoded by the cDNA of NCIMB 41110, and determining whether binding and/or modulation occurs.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to methods for identifying agents, which bind to and/or modulate exopeptidases or endopeptidases, preferably human soluble secreted endopeptidase (SEP), oxytocinase, neutral endopeptidase (NEP), or non-human SEP, preferably comprising contacting said agents with a polypeptide comprising: SEQ ID NO: 2, an amino acid sequence encoded by the polynucleotide sequence of SEQ ID NO: 1 or SEQ ID NO: 5; or a polypeptide encoded by the cDNA of NCIMB 41110, and determining whether binding and/or modulation occurs. Preferably, said method is carried out in the presence of a substrate peptide labelled with at least one fluorescent donor dye and at least one fluorescence acceptor dye, with the method used to detect said agents being a competitive binding Fluorescence Resonance Energy Transfer (FRET) assay.
23 Citations
14 Claims
-
1. A method for identifying an agent which binds to and/or modulates a SEP polypeptide comprising contacting said agent with a polypeptide comprising:
- SEQ ID NO;
2, an amino acid sequence encoded by the polynucleotide sequence of SEQ ID NO;
1 or SEQ ID NO;
5;
or a polypeptide encoded by the cDNA of NCIMB 41110, and determining whether binding and/or modulation occurs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 11, 12, 13, 14)
- SEQ ID NO;
-
8. A method for identifying an agent which inhibits or selectively inhibits a peptidase comprising contacting said peptidase and a peptidase substrate peptide selected from the group consisting of Rhodamine green-Gly-Gly-dPhe-Leu-Arg-Arg-Val-Cys(QSY™
- 7)-β
Ala-NH2, 5-(and
6) tetramethyl rhodamine Gly-Gly-dPhe-Leu-Arg-Arg-Val-CyS(QSY™
7)-β
Ala-NH2 and 5-carboxyfluorescein-Gly-Gly-dPhe-Leu-Arg-Arg-Val-Cys (5- (and
6) tetramethylrhodamine)-β
Ala-NH2, in the presence of said agent, wherein said substrate peptide is capable of providing a detectable signal in response to cleavage by said peptidase as detected by Fluorescence Resonance Energy Transfer (FRET) assay, wherein said agent is identified as an inhibitor of said peptidase if there is a decrease in the detectable signal in the presence of said agent as compared to in the absence of said agent. - View Dependent Claims (9, 10)
- 7)-β
Specification