منابع مشابه
The Enzymic Hydrolysis of p - Glucosides
The present work arose out of an attempt to understand the course of cellulose breakdown in preparations of cellulolytic enzymes which also contained cellobiase activity. Previous investigations of the ,B-glucosidases have been of three kinds-an examination of their specificity ranges (reviewed by Veibel, 1950), the demonstration of their reversibility and the study of glucosyl transfer. Croft-...
متن کاملThe enzymic hydrolysis of carrageenin.
Carrageenin is the water soluble polysaccharide extractable from the red algae Chondrus crispus and Gigartina stellata. The polysaccharide is essentially a polymer of alpha-D-galactopyranoside-4-sulphate. Smith et al. (1954) fractionated carrageenin with potassium chloride into two components and obtained a precipitable component which could form gels and a nongelling component which remained i...
متن کاملAn Inducible System for the Hydrolysis and Transport of β-Glucosides in Yeast
A strain of bakers' yeast was isolated which could utilize cellobiose and other beta-D-glucosides quantitatively as carbon and energy sources for growth. Cellobiose-grown cells contained a largely cryptic enzyme active against the chromogenic substrate p-nitrophenyl-beta-D-glucoside. The patent (intact cell) activity of such cells was inhibited by azide and, competitively, by cellobiose; neithe...
متن کاملThe complete enzymic hydrolysis of proteins.
The strong acids that are required for complete hydrolysis of proteins destroy some amino acids, such as tryptophan, asparagine, and glutamine. Other amino acids are destroyed to a lesser extent or in certain cases are released incompletely from peptide linkage. It is evident that these difficulties, as well as others, could be overcome by employing proteolytic enzymes as the sole agents for hy...
متن کاملThe pH-dependence of enzymic ester hydrolysis.
The esterases of animal tissues have generally been characterized by their substrate specificity and by their behaviour towards various inhibitors. The irreversible inhibition by organic phosphates, which is due to phosphorylation of the active group (Burgen, 1949; Wilson & Bergmann, 1950a; Aldridge, 1953d), is a common property of most esterases, an interesting exception being the Aesterase of...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1957
ISSN: 0306-3283
DOI: 10.1042/bj0650001