Characterization of a methionine-rich protein from the seeds of Cereus jamacaru Mill. (Cactaceae)
Braz. j. med. biol. res
; 33(8): 897-903, Aug. 2000. ilus, tab
Article
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| ID: lil-265846
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BR1.1
RESUMO
We describe here the isolation and characterization of a major albumin from the seeds of Cereus jamacaru (Cactaceae), to which we gave the trivial name of cactin. This protein has a molecular mass of 11.3 kDa and is formed by a light chain (3.67 kDa) and a heavy chain (7.63 kDa). This protein was isolated using a combination of gel filtration chromatography and reverse-phase HPLC. The amino acid composition of cactin was determined and found to resemble that of the 2S seed reserve protein from the Brazil nut, a protein remarkable for its high methionine content. The usefulness of cactin as a molecular marker in the taxonomy of the Cactaceae is discussed
Texto completo:
1
Índice:
LILACS
Asunto principal:
Proteínas de Plantas
/
Semillas
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Albúminas
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Metionina
Idioma:
En
Revista:
Braz. j. med. biol. res
Asunto de la revista:
BIOLOGIA
/
MEDICINA
Año:
2000
Tipo del documento:
Article