Brucellose et lacto-agglutination

Séro-agglutination rapide et macroscopique pour la recherche d'anticorps de la Fièvre Q. chez les animaux

les hematie tannees et sensibilisees , employees dans la reaction d›hemagglutinayion proteinique de la peste ne sont plus sensibles a l›hemolyse, l›agglutination et la conglutination nateurelles

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Agglutination by Precipitin

Serum (antigen) when heated at a temperature sufficient to cause definite clouding reacts more intensely with a specific precipitin than a portion of the unheated serum or samples heated at lower temperatures. The phenomenon is explained on the basis that coagulated protein in suspension is covered with undenatured antigen and the addition of precipitin causes agglutination of the coagulated pr...

An enzyme releasing lacto-N-biose from oligosaccharides.

alpha-L-Fucosidase (alpha-L-fucoside fucohydrolase; EC 3.2.1.51) preparations from Streptomyces sp. 142 were found to contain an enzyme specific for lacto-N-biosidic (Gal beta 1-3GlcNAc beta 1-) linkages (type 1 structure) in oligosaccharides. The enzyme preparation, which was eluted after alpha-fucosidase from a CM-Sepharose column, contained some alpha-fucosidase activity but was free from ot...

Auto-agglutination in Albumin.

An example of the ;albumin' auto-agglutinating phenomenon is reported. This was found in the serum of a man dying from carcinoma of the stomach with liver secondaries. It is suggested that the serum factor is of a protein (probably globulin) nature, and may have been produced by the diseased liver.