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  • Title: [Immunological study of cellular components of Pseudomonas aeruginosa. IV. Fractionation of Pseudomonas aeruginosa mucus by diafiltration and biological properties of isolated fractions].
    Author: Palkina NA, Bulk VF, Zhvanetskaia MI, Stakislavskiĭ ES, Kolker II.
    Journal: Zh Mikrobiol Epidemiol Immunobiol; 1978 Jun; (6):50-5. PubMed ID: 97882.
    Abstract:
    In fractionation of Pseudomonas aeruginosa mucus (strains No. 8 and 1463) by means of diafiltration on the system of membranes Diaflo XM-300, XM-100A, PM-30, and PM-10 there was obtained a successive series of fractions differing by the molecular weight and chemical composition. According to the results of gel chromatography fractions with the mol wt of 100000 dalton and over apparently represented protein-polysaccharide components of mucus in the form of complexes; fractions with the mol wt of 30000 dalton and lower contained a considerable amount of free protein along with the protein-polysaccharide complex. The fractions obtained differed by biological properties: fractions with the mol wt of 100000 dalton and over were toxic for mice and possessed weak antigenic properties in the precipitation in agar test and immunoelectrophoresis; fractions with the mol wt lower than 30000 dalton expressed in the mentioned test distinct antigenic properties and proved to be practically nontoxic for mice. Thus the use of diafiltration method permitted to separate the antigenic, weakly toxic component of Ps. aeruginosa mucus from the toxic factor with weak antigenic properties.
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