<b>A SENSITIVE, NON-ISOTOPIC IMMUNOASSAY FOR PROGESTERONE USING THE AVIDIN-BIOTIN </b><b>SYSTEM </b>
نویسندگان
چکیده
منابع مشابه
Avidin-biotin enzyme immunoassay of osteocalcin in serum or plasma.
We describe a competitive enzyme immunoassay, the ExtrAvidin-biotin system, for determining osteocalcin in human serum or plasma. Antibodies were raised against bovine osteocalcin. Binding of the antibodies to osteocalcin was calcium-dependent. Limit of detection is 0.07 nmol/L (0.4 microgram/L). The standard curve for method is linear between 0.3 and 17.6 nmol/L (1.9 and 100 micrograms/L). Int...
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متن کاملA monoclonal-antibody enzyme immunoassay for detection of hepatitis B surface antigen with use of a biotin-avidin system.
In this solid-phase two-site enzyme immunoassay for hepatitis B surface antigen (HBsAg), three monoclonal anti-HBs are used: 5D3 (IgM) is immobilized on plastic beads; 5C3 (IgG2a) and 5C 11 (IgG1), labeled with biotin, are used as the first conjugate. Horseradish peroxidase covalently linked to avidin is the second conjugate. First, serum or plasma is incubated with the antibody-coated bead and...
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The crystal structures of a deglycosylated form of the egg-white glycoprotein avidin and of its complex with biotin have been determined to 2.6 and 3.0 A, respectively. The structures reveal the amino acid residues critical for stabilization of the tetrameric assembly and for the exceptionally tight binding of biotin. Each monomer is an eight-stranded antiparallel beta-barrel, remarkably simila...
متن کاملSolid phase DNA sequencing using the biotin-avidin system.
A novel method for solid-phase DNA sequencing is described. A plasmid vector, pRIT27, has been designed to allow directional immobilization of double stranded plasmid to avidin agarose. The strategy involves enzymatic incorporation of 11-bio-dUTP into the plasmid and strand specific elution using alkali. The immobilized single stranded DNA is used as template for sequencing reactions and the re...
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ژورنال
عنوان ژورنال: Biomedical Research
سال: 1995
ISSN: 0388-6107,1880-313X
DOI: 10.2220/biomedres.16.381