Patent ID: 7358053

Claim:
A method for detecting the presence of P-glycoprotein A (PGP-A), P-glycoprotein B (PGP-B), or P-glycoprotein O (PGP-O) in Haemonchus contortus , which comprises the steps of: (a) preparing an antibody which is specific for a P-glycoprotein encoded by a nucleic acid molecule which comprises the nucleotide sequence of SEQ ID NO:3, SEQ ID NO:5, SEQ ID NO:7, or SEQ ID NO:8; (b) preparing a specimen of Haemonchus contortus for reaction with the antibody; (c) contacting the specimen with the antibody under suitable conditions that allow antibody-antigen binding to occur; and (d) determining the presence or absence of antibody-antigen binding, wherein detection of said binding is indicative of the presence of the P-glycoprotein in the specimen.