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G T BARRY

Publications and source records attributed to G T BARRY.

18 recordsLinked to original sources
PubMed1958

Colominic acid, a polymer of N-acetylneuraminic acid.

All acidic carbohydrate has been isolated from the culture medium of the enteric microorganism E. coli K(235) L(+)O. This substance has been named colominic acid. N-acetylneuraminic acid, which has been isolated from the hydrolysate of colominic acid, is believed to be the monomer unit from which colominic acid is constituted. Colominic acid is not antigenic in rabbits. Tests have failed to reveal a relationship between the ability of E. coli K(235) to elaborate colominic acid and its virulence in mice.

Amino Acids↗
PubMed1956

Colicine K. I. The production of colicine K in media maintained at constant pH.

An apparatus for maintaining the pH of an actively growing bacterial culture at constant level has been described. Using this apparatus it has been shown that the production of maximal amounts of colicine K from a strain of E. coli known as K235 is dependent upon an enriched nutrient medium which is maintained at pH 7.0.

Anti-Bacterial Agents↗
PubMed1955

Colicine K.

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Anti-Bacterial Agents↗
PubMed1954

A study of the antigenicity of T3 and T4 coli-dysentery bacteriophages during the vegetative stage of development.

The development of viral neutralizing antibodies in animals injected with T(3) or T(4) phage is considerably inhibited by the presence of bacterial antigens. A new procedure has been described to liberate phage from infected E. coli B bacteria by inducing lysis with penicillin. By immunological means it has been shown that T(4)-infected cultures of E. coli B, in which phage development has been inhibited with proflavine, contain the viral neutralizing antigen after lysis. In contrast, it has not been possible to demonstrate by immunological means the appearance of viral neutralizing antigen in E. coli B infected with T(3) prior to the appearance of intracellular phage.

Animals↗