REAGENTS, METHOD AND KIT FOR DETECTING PHOSPHINOTHRICIN-N-ACETYLTRANSFERASE PROTEIN

摘要

A method, kit and reagents for the detection of (phosphinothricin-N-acetyltransferase) PAT proteins in a sample, particularly a genetically modified agricultural crop sample. The proteins to be detected are one or more PAT enzyme proteins from various species of Streptomyces, including S. hygroscopicus and S. viridochromogenes. In particular, the PAT proteins are detected in genetically modified plants containing a gene, such as the pat or bar gene, that renders the plant resistant to the herbicide glufosinate. The reagents are antigenic peptides having common epitope of the PAT proteins from two or more Streptomyces species and antibodies immunoreactive with these proteins, particularly those expressed by the bar and pat genes. The peptides are isolated or synthesized and administered to animals to produce anti-PAT monoclonal and polyclonal antibodies having high sensitivity for PAT proteins. The antibodies are useful in immunoassay methods for the detection of genetically modified organisms engineered to include a PAT gene.