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Träfflista för sökning "WFRF:(Peterson G.) srt2:(1985-1989)"

Sökning: WFRF:(Peterson G.) > (1985-1989)

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1.
  • Carlson, M, et al. (författare)
  • Human eosinophil peroxidase : purification and characterization
  • 1985
  • Ingår i: Journal of Immunology. - 0022-1767 .- 1550-6606. ; 134:3, s. 1875-1879
  • Tidskriftsartikel (refereegranskat)abstract
    • Human eosinophil peroxidase (EPO) was isolated from granules from granulocytes of a patient with hypereosinophilia. The granules were extracted by means of 0.2 M NaAc, pH 4.0. The purification steps included gel filtration chromatography on Sephadex G-75 superfine and ion-exchange chromatography on CM-Sephadex G-50. The purified protein showed one band on agarose-electrophoresis, a high peroxidase activity, and a 415-nm/280 nm ratio of 1.15. After reduction, EPO showed two bands on SDS-PAGE of m.w. 52,000 and 15,000, respectively. On gel filtration, the unreduced protein had a m.w. of approximately 77,000. Amino acid analyses showed a high content of arginine and aspartic acid. Monospecific antibodies to EPO were prepared in rabbits, and a specific radioimmunoassay was developed. There was an almost linear correlation between the content of EPO measured by the radioimmunoassay and the number of eosinophils in a mixed cell extract from reference material, indicating the eosinophil origin of EPO. The content of EPO was estimated to be 15.0 micrograms/10(6) eosinophils.
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