نتایج جستجو برای: cyclodextrin glucosyl transferase cgtase
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Betalains can be conveniently observed and quantified and, accordingly, have the potential as naked-eye visual screening reporters during plant transformation. RUBY is a new reporter system that uses “2A” peptides to fuse three key genes, CYP76AD1, DODA, glucosyl transferase, for betalain biosynthesis, has been successfully used transformation of rice, Arabidopsis, cotton, but its applications ...
N-glycanase from Saccharomyces cerevisiae (Png1) preferentially removes N-glycans from misfolded proteins. The ability of Png1 to distinguish between folded and misfolded glycoproteins is reminiscent of substrate recognition by UDP-glucose glycoprotein glucosyl transferase, an enzyme that possesses this trait. The only known in vivo substrates of Png1 are aberrant glycoproteins that originate i...
An X-ray structure analysis of a crystal of mutant Asp229----Ala of cyclodextrin glycosyltransferase from Bacillus circulans (Ec 2.4.1.19) that had been shortly exposed to beta-cyclodextrin showed density corresponding to a maltose bound at the catalytic center. The crystal structure was refined to an R-factor of 18.7% at 2.5-A resolution. The catalytic center is defined by homology with the st...
The synthesis of teichoic acids has been examined during germination in Bacillus licheniformis ATCC 9945 and in B. subtilis W-23. Teichoic acids are absent from the spores of both organisms. B. licheniformis spores lack the enzymes responsible for teichoic acid synthesis. The appearance of these enzymes during germination is correlated with the appearance of teichoic acids in the cell. The appe...
While this Article was undergoing peer review, Salim et al. (2013), Asada et al. (2013) and Salim et al. (2014) published individual steps of the (seco)iridoid biosynthesis pathway in Catharanthus roseus, including the molecular and biochemical characterization of 7-deoxyloganic acid hydroxylase, 7-deoxyloganetic acid glucosyl transferase and 7-deoxyloganetic acid synthase, which are in agreeme...
Dolichyl phosphate is an intermediate in the glycosylation of N-glycosamidic linked glycoproteins in mammalian systems, and its availability may be a limiting factor in glycoprotein biosynthesis. The basic kinetics and subcellular distribution of enzymes which may influence the concentration of dolichyl phosphate in rat liver have therefore been investigated. These include dolichyl phosphate ph...
Guanosine diphosphate d-glucose:d-glucose-6-phosphate 1-glucosyl-transferase was purified approximately 100-fold from extracts of Streptomyces hygroscopicus. The purified enzyme catalyzed the transfer of glucose from guanosine diphosphate-d-glucose to glucose-6-phosphate to form trehalose phosphate and guanosine diphosphate. The enzyme was specific for these two substrates and was stimulated by...
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