著者

一言 広

出版者

JAPANESE SOCIETY FOR BACTERIOLOGY

雑誌

日本細菌学雑誌 (ISSN:00214930)

巻号頁・発行日

vol.20, no.11, pp.627-633, 1965

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A purified coagulase was obtained from a culture filtrate of <i>Staphylococcus aureus</i> St-213 which proved to be homogenous in immunological, electrophoretical and Spinco Model E ultracentrifugal studies. Treatment of the material with trichloroacetic acid prior to passing through Dowex-1 and Diethylaminoethyl-Sephadex A-50 columns yielded a product which showed a 280 fold increase in activity per mg of nitrogen than the crude culture filtrate. The sedimentation coefficient of the treated material was S_{20, w}=1.59S.<br>The treated material was composed of 9 amino acids (i.e. lysin, aspartate, threonine, serine, glutamine, glycine, alanine, valine and methionine) and lacked carbohydrates, lipids and phosphates. Therefore, this purified material may be classified as a purified protein derivative (PPD) capable of exhibiting a specific coagulase type reaction against homologous and heterologous type antiserum when tested immunologically using the agar gel diffusion technique.