title: Des-gamma-carboxyprothrombin detection by immunoblotting after polyacrylamide gel affinoelectrophoresis in human plasmas.
abstract: In the absence of vitamin K or in the presence of the vitamin K antagonists, abnormal nonfunctional forms of prothrombin circulate in the blood. A reliable and reproducible technique, derived from traditional crossed affinoimmunoelectrophoresis in presence of calcium lactate, was developed and optimized. The technique is based on nondenaturing polyacrylamide gel affinoelectrophoresis, with calcium lactate, of plasma samples, followed by immunoblotting with rabbit anti-human prothrombin serum and detection with an anti-rabbit immunoglobulin peroxidase conjugate. Depending on the plasmas, one or two bands were visualized and quantified by densitometry of the immunoblots. The technique was able to detect abnormal des-gamma-carboxylated prothrombins at concentration of 0.1 microgram/mL.
authors.affiliation: Institut Pasteur de Lyon, France.
authors.forename: M
authors.initials: M
authors.lastname: Belle
authors.forename: M
authors.initials: M
authors.lastname: Hanss
authors.forename: M
authors.initials: M
authors.lastname: Guillaumont
authors.forename: M
authors.initials: M
authors.lastname: Leclercq
authors.forename: R
authors.initials: R
authors.lastname: Guinet
mesh_terms: D000327:Adsorption; D000925:Anticoagulants / Q000627:therapeutic use; D001464:Barium; D015415:Biomarkers; D002254:Carbonates; D004591:Electrophoresis, Polyacrylamide Gel; D006801:Humans; D015151:Immunoblotting; D007123:Immunoelectrophoresis, Two-Dimensional; D007773:Lactates; D019344:Lactic Acid; D011498:Protein Precursors; D011516:Prothrombin / Q000031:analogs & derivatives* / Q000032:analysis
chemical_list: D000925:Anticoagulants; D015415:Biomarkers; D002254:Carbonates; D007773:Lactates; D011498:Protein Precursors; D001464:Barium; D019344:Lactic Acid; C008208:acarboxyprothrombin; C006685:barium carbonate; D011516:Prothrombin