Results 31 to 40 of about 3,382 (177)

Anion exchange resins in phosphate form as versatile carriers for the reactions catalyzed by nucleoside phosphorylases

open access: yesBeilstein Journal of Organic Chemistry, 2020
In the present work, we suggested anion exchange resins in the phosphate form as a source of phosphate, one of the substrates of the phosphorolysis of uridine, thymidine, and 1-(β-ᴅ-arabinofuranosyl)uracil (Ara-U) catalyzed by recombinant E. coli uridine
Julia N. Artsemyeva   +7 more
doaj   +1 more source

Recent development of phosphorylases possessing large potential for oligosaccharide synthesis

open access: yes, 2013
Phosphorylases are one group of carbohydrate active enzymes involved in the cleavage and formation of glycosidic linkages together with glycoside hydrolases and sugar nucleotide-dependent glycosyltransferases.
Svensson, Birte   +3 more
core   +1 more source

Insights into phosphate cooperativity and influence of substrate modifications on binding and catalysis of hexameric purine nucleoside phosphorylases. [PDF]

open access: yesPLoS ONE, 2012
The hexameric purine nucleoside phosphorylase from Bacillus subtilis (BsPNP233) displays great potential to produce nucleoside analogues in industry and can be exploited in the development of new anti-tumor gene therapies.
Priscila O de Giuseppe   +5 more
doaj   +1 more source

Découverte de nouvelles glycoside-phosphorylases pour la synthèse d'oligosaccharides

open access: yes, 2020
Glycoside-phosphorylases are particular carbohydrate active enzymes (CAZymes), able to catalyze both glycoside degradation by using inorganic phosphate to breakdown osidic linkages, and synthesis by using sugar-phosphates as glycosyl donors.
Li, Ao
core   +2 more sources

Diversification of 4ʹ-Methylated Nucleosides by Nucleoside Phosphorylases [PDF]

open access: yes, 2021
The growing demand for 4\u27-modified nucleoside analogs in medicinal and biological chemistry is contrasted by the challenging synthetic access to these molecules and the lack of efficient diversification strategies. Herein, we report the development of
Anke, Kurreck   +11 more
core   +2 more sources

Continuous process technology for bottom-up synthesis of soluble cello-oligosaccharides by immobilized cells co-expressing three saccharide phosphorylases

open access: yesMicrobial Cell Factories, 2022
Background Continuous processing with enzyme reuse is a well-known engineering strategy to enhance the efficiency of biocatalytic transformations for chemical synthesis.
Katharina N. Schwaiger, Bernd Nidetzky
doaj   +1 more source

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

Nucleoside phosphorylases from clostridium perfringens in the synthesis of 2',3'-dideoxyinosine

open access: yes, 2010
Four Clostridium perfringens phosphorylases were subcloned, overexpressed and analyzed for their substrate specificity. DeoD(1) and PunA could use a variety of purine substrates, including an antiviral drug 2',3'-dideoxyinosine (ddI).
TERRENI, MARCO   +3 more
core   +2 more sources

QM/MM Study of a Nucleophilic Substitution Reaction Catalyzed by Uridine Phosphorylase from Vibrio cholerae

open access: yesCrystals, 2023
Uridine phosphorylases are used for biotechnological synthesis of pyrimidine derivatives and, moreover, their substrates and inhibitors are used in medicine.
Alexander A. Lashkov   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy