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Proteinase activity regulation by glycosaminoglycans BJMBR
Tersariol,I.L.S.; Pimenta,D.C.; Chagas,J.R.; Almeida,P.C..
There are few reports concerning the biological role and the mechanisms of interaction between proteinases and carbohydrates other than those involved in clotting. It has been shown that the interplay of enzymes and glycosaminoglycans is able to modulate the activity of different proteases and also to affect their structures. From the large number of proteases belonging to the well-known protease families and also the variety of carbohydrates described as widely distributed, only few events have been analyzed more deeply. The term "family" is used to describe a group of proteases in which every member shows an evolutionary relationship to at least one other protease. This relationship may be evident throughout the entire sequence, or at least in that part...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Proteinases; Heparin binding; Glycosaminoglycan; Macromolecules.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000200001
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Reserve mobilization during imbibition of stored Gliricidia sepium (Jacq.) Steud. (Leguminosae - Papilionoideae) seeds Rev. bras. sementes
Reis,Renata Conduru Ribeiro; Dantas,Bárbara França; Castro,Renato Delmondez de; Antunes,Cimille Gabrielle Cardoso; Silva,Fabrício Francisco Santos da; Pelacani,Claudinéia Regina.
Gliricidia sepium is a drought-tolerant species, easily multiplied by seeds, and has been exploited by farmers as a source of forage in the semi-arid region of northeast Brazil. The objective of the present study was to evaluate the effect of seed storage on the mobilization of reserves during imbibition of "Gliricidia" seeds. Freshly-harvested seeds were packed in kraft paper bags and stored for three and six months in the laboratory under ambient conditions (25 º C ± 3 T and 75% ± 3 RH). Cotyledons were isolated from imbibed seeds and macerated for the extraction and quantification of total soluble sugars, reducing sugars, sucrose and starch, as well as of proteins, amino acids and for amylase activity. Storage under these conditions resulted in an...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Macromolecules; Longevity; Viability; Germination; Water content.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222011000300018
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