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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Enzyme immunoassay of the myelin basic protein.

An enzyme immunoassay using a double-antibody solid-phase technique for myelin basic protein (MBP) has been developed. Antisera were prepared by immunizing rabbits with the purified MBP from chick brain. The conjugation of MBP with horseradish peroxidase was performed by the periodate oxidation method in triethanolamine-acetate buffer (pH 8.5). The sample, antiserum, and conjugate were incubated at 4 degrees C for 16 h, after which the insoluble second antibody was added and the reaction mixture was incubated at 4 degrees C for 3 h. The peroxidase activity of the insoluble conjugate was assayed fluorometrically with hydrogen peroxide and 3-(p-hydroxyphenyl)propionic acid as substrates. The method had an analytical range from 50 pg to 1 ng (from 2.3 x 10(-15) to 4.5 x 10(-14) mol). The within-assay coefficient of variation (CV) was between 4 and 11% and the between-assay CV for 200 and 400 pg of MBP was 5.5 and 7.1%, respectively. A weak cross-reactivity was observed between chick MBP and bovine MBP, while no reactivity was shown with calf thymus histone. The MBP content of the brain during development increased markedly from the 3rd embryonic week to the 3rd post-hatch week (from 0.01 to 2.4 mg/g of fresh tissue), and the adult level was 3.2 mg/g of fresh tissue.[1]


  1. Enzyme immunoassay of the myelin basic protein. Shinomiya, Y., Kato, N., Imazawa, M., Miyamoto, K. J. Neurochem. (1982) [Pubmed]
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