Results 201 to 210 of about 578,208 (247)

Phage mediated appearance of somatic antigen 5

Medical Microbiology and Immunology, 1960
Phage P22 grown onSalm. chester in addition to effecting lysogenic conversion of somatic antigen 1 and transduction was able to cause the appearance of somatic antigen 5 in non-embryonated eggs and embryos but notin vitro. The phages carried by the transduced strains were not able to produce somatic antigen 5.
exaly   +3 more sources

Polymorphism of the Somatic Antigen of Yeast

Science, 1974
Clinton E Ballou, Clinton E Ballou
exaly   +4 more sources

Antigenicity of Fractions of a Somatic Antigen of Trypanosoma cruzi

The Journal of Parasitology, 1973
A delipidized somatic Trypanosoma cruzi antigen was mechanically fractionated in a Sephadex G-200 column, and the fractions were separated according to complement fixation (CF) (Fraction Ia) and indirect hemagglutination (IHA) activity (Fractions III, IV). The reaction of the active fractions against chronic infected human sera was quite similar to the
S M, González Cappa, I G, Kagan
openaire   +2 more sources

Somatic Antigen 15 as a Precursor of Antigen 34 in Salmonella

Nature, 1960
PHAGE ɛ34 is a temperate phage produced by group E 3 Salmonellae with O antigens (3), (15), 34 and capable of converting group E 2 Salmonella (O antigens 3, 15) to group E 3 Salmonella (O antigens (3), (15), 34) by lysogenization1–5. The formation of antigen 34 is accompanied by partial loss of antigens 3 and 155, suggesting a close relationship ...
H, UETAKE, S, HAGIWARA
openaire   +2 more sources

Somatic antigen addition in salmonella by bacteriophage

Virology, 1957
Abstract A bacteriophage that will lysogenize certain species of Salmonella has been isolated from Salmonella kentucky . This phage confers on the cells which it has lysogenized the ability to produce an added somatic antigenic component. The process of antigen addition, which appears to be dependent on the introduction and presence of the ...
L S, BARON, S B, FORMAL, O, WASHINGTON
openaire   +2 more sources

Surface and somatic antigens of Fusiformis nodosus

Journal of Comparative Pathology, 1973
Abstract Fusiformis nodosus produces at least 2 agglutinating antigens during growth on hoof agar plates. One of these is a surface or K antigen that is removed by washing the bacteria in buffered saline or water. In the presence of homologous antiserum prepared in rabbits or sheep, cells with K antigen exhibit a distinctive agglutination that is ...
openaire   +2 more sources

Somatic generation of antigen-receptor diversity: a reprise

Trends in Immunology, 2001
Thirty years ago, in his inaugural article entitled 'The somatic generation of immune recognition', Niels Jerne put forward the hypothesis that the primary antigen (Ag)-receptor repertoire must be restricted towards self-Ags before Ag-mediated selection.
F, Livák, H T, Petrie
openaire   +2 more sources

Plasticity Under Somatic Mutation in Antigen Receptors

1998
After antigen binding, a subset of newly activated B and T cells is recruited into the primary follicles of lymphoid tissue where, along with follicular dendritic cells, they establish a site of vigorous lymphocyte proliferation. Within these germinal centers the processes of somatic hypermutation and selection result in the affinity maturation of ...
T B, Kepler, S, Bartl
openaire   +2 more sources

Induced Somatic Mutations Affecting Erythrocyte Antigens

Science, 1960
The frequency of inagglutinable erythrocytes was increased in pigeons following total body irradiation and in human polycythemic patients treated with P 32 . Persistence of the increased levels of inagglutinable cells was observed in pigeons retested at over 200 days after irradiation and in a polycythemic patient ...
S L, SCHEINBERG, R P, RECKEL
openaire   +2 more sources

Serological classification of Pseudomonas cepacia by somatic antigen

Journal of Clinical Microbiology, 1986
Ten samples of antiserum against Pseudomonas cepacia were prepared by the intravenous immunization of rabbits with heat-killed organisms. Ten P. cepacia strains used for immunization were proven unique antigenic strains. Using these antisera, we serogrouped 127 strains of P. cepacia, and 114 strains (89.8%) fell under one of the ten serogroup. The most
Y, Nakamura, S, Hyodo, E, Chonan, S, Shigeta, E, Yabuuchi   +4 more
openaire   +2 more sources