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Comparative Study
, 29 (2), 271-8

New Monoclonal Antibodies as Probes for Human Cardiac Troponin I: Epitopic Analysis With Synthetic Peptides

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Comparative Study

New Monoclonal Antibodies as Probes for Human Cardiac Troponin I: Epitopic Analysis With Synthetic Peptides

C Larue et al. Mol Immunol.

Abstract

Forty monoclonal antibodies (MAbs) specific for human cardiac troponin I (TnI) were selected to develop a new alternative for specific biological diagnosis of acute myocardial infarction. Using an immunoenzymatic sandwich assay, these MAbs were employed in the mapping of human cardiac TnI and showed six different epitopes. Parts of the TnI peptide sequences were synthesised; the sequences were chosen from the published sequences of mammalian TnI. Immunological assays showed that 8 out of 40 MAbs recognised a RAYATEPHAK (P2) N-terminus cardiac-specific sequence of human TnI. The information obtained from epitopic mapping of TnI and the properties of the peptides allowed pairs of MAbs to be selected for the development of a future specific TnI assay.

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