Isolation and partial characterization of antigen 5.1 from the seeds of Ricinus communis, L. (var. amarelo de irece)
Braz. j. med. biol. res
;
24(2): 141-3, 1991. tab
Artigo
em Inglês
| LILACS
| ID: lil-99447
ABSTRACT
Antigen 5.1 was isolated from the most acidic fraction of castor bean allergens (CB-1A) by gel filtration on Sephadex G-75 followed by polyacrylamide gel electrophoresis (PAGE) (yield 6.2 mg antigen 5.1/g CB-1A). This antigen was homogeneous by the criteria of PAGE, isoelectric focusing, SDS-PAGE, immunoelectrophoresis and gel filtration. The antigen has an apparent molecular mass of 12 ñ 2 kDa and an isoelectric point of pH 5.1. Antigen 5.1 lacks proline, phenylalanine, threonine and tryptophan. It was immunochemically identical to one of the three immunoprecipitation lines presented by CB-1A by the Ouchterlony technique, and was positive when tested (250 *g) by IgE-mediated passive cutaneous anaphylaxis in LOU.M rats
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Índice:
LILACS (Américas)
Assunto principal:
Sementes
/
Ricinus communis
/
Antígenos
Idioma:
Inglês
Revista:
Braz. j. med. biol. res
Assunto da revista:
Biologia
/
Medicina
Ano de publicação:
1991
Tipo de documento:
Artigo
/
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