Consulta: creatorFacets:"Uchôa,A.F."
Registros recuperados: 2
Data/hora: 11/06/2024 19:15:34

Characterization of a methionine-rich protein from the seeds of Cereus jamacaru Mill. (Cactaceae)
Provedor de dados: 56
Autores: Aragão,T.C.F.R.; Souza,P.A.S.; Uchôa,A.F.; Costa,I.R.; Bloch Jr.,C.; Campos,F.A.P.
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.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cactaceae; Mandacaru; Cereus jamacaru; Cactin; 2S albumins; Methionine-rich protein.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000800005

The leaves of green plants as well as a cyanobacterium, a red alga, and fungi contain insulin-like antigens
Provedor de dados: 56
Autores: Silva,L.B.; Santos,S.S.S.; Azevedo,C.R.; Cruz,M.A.L.; Venâncio,T.M.; Cavalcante,C.P.; Uchôa,A.F.; Astolfi Filho,S.; Oliveira,A.E.A.; Fernandes,K.V.S.; Xavier-Filho,J.
We report the detection of insulin-like antigens in a large range of species utilizing a modified ELISA plate assay and Western blotting. We tested the leaves or aerial parts of species of Rhodophyta (red alga), Bryophyta (mosses), Psilophyta (whisk ferns), Lycopodophyta (club mosses), Sphenopsida (horsetails), gymnosperms, and angiosperms, including monocots and dicots. We also studied species of fungi and a cyanobacterium, Spirulina maxima. The wide distribution of insulin-like antigens, which in some cases present the same electrophoretic mobility as bovine insulin, together with results recently published by us on the amino acid sequence of an insulin isolated from the seed coat of jack bean (Canavalia ensiformis) and from the developing fruits of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insulin; Insulin-like; Antigens; Evolution; Plants; Cyanobacteria; Algae; Fungi.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000300004