Some aspects of xylose isomerase constitutive biosynthesis in Arthrobacter nicotianae

Autor:	I. O. Tamkovich, L. I. Sapunova, A. G. Lobanok
Rok vydání:	2010
Předmět:	Xylulose chemistry.chemical_classification Xylose isomerase biology Catabolite repression Repressor Xylose biology.organism_classification Applied Microbiology and Biotechnology Biochemistry chemistry.chemical_compound Enzyme chemistry Biosynthesis Bacteria
Zdroj:	Applied Biochemistry and Microbiology. 46:400-404
ISSN:	1608-3024 0003-6838
Popis:	The specific features of biosynthesis of the cell-bound xylose isomerase by the actinobacterium Arthrobacter nicotianae BIM V-5 were studied. It was demonstrated that the constitutive synthesis of this enzyme in the studied bacteria, not subject to catabolite repression, was inhibited by xylulose, an intermediate product of xylose utilization and the final product of its enzymatic isomerization. Short-term experiments demonstrated that xylulose at a concentration of 0.005% almost completely repressed the xylose isomerase synthesis in A. nicotianae. This effect was independent of the time moment when the repressor was added to the cultivation medium and was not associated with its influence on the catalytic activity of the enzyme.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3a98d049f918c5a0dc29480c1a940462 https://doi.org/10.1134/s000368381004006x Zobrazit plný text záznamu Plný text ve formátu PDF