The formation rate of the C-2 epimer was 0.03 mg mg -1 min -1 from d -glucose, 0.56 mg mg -1 min -1 from d -arabinose and 3.0 mg mg -1 min -1 from d -erythrose. The equilibria of the reaction products as a function of temperature were measured for threose/erythrulose/...
180.157 【 M D L 】:MFCD00151230 【熔点】:158-159℃ 【比旋光度】:+79.8 (15min) +76.8 (24h) (c, 0.25 in H2O) 【储存条件】:2-8℃ 【来源】:发酵 【外观】:白色粉末 【溶解性】:能溶于水和吡啶,水中溶解度:680 g/L (25°C);微溶于甘油和醇 【用途】:The C-4 epimer of glucose....
Which of the following monosaccharides is an epimer of glucose at C-4? a) Galactose b) Mannose c) Gulose d) talose e) altrose. Which of the following statements is false? A. Carbohydrates are hydrophilic molecules. B. Living...
D-Galactose is a natural aldohexose and C-4 epimer of glucose[1][2][3][4]. Stable heavy isotopes of drogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because ...
D-[2-13C]GALACTOSE Usage And Synthesis Uses Isotope labelled D-galactose (G155250), A C-4 epimer of Glucose (G595000) found in milk and sugar beets as well as being synthesized by the body. Potential use in oral therapy for nephrotic syndrome in focal and segmental glomerulosclerosis.D...
The observed NOE correlations between 4-H and 4¢¢-H confirmed that 2¢¢-H and 4¢¢-H were on the b-face and a-face of the molecule, respectively. The relative configuration of 2 was suggested as 4R*, 2¢¢R*, 4¢¢S*, and 2 was shown to be an epimer at...
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(via a C3-epimerase), N-acetylglucosamine-6-phosphate and N-acetylmannosamine-6-phosphate (via a C2-epimerase), d-erythrose-4-phosphate and d-threose-4-phosphate (also using a C2-epimerase), dTDP-4-keto-6-deoxy-d-glucose and dTDP-4-keto-l-rhamnose (via C3′ and C5′ epimerase ...
Screening for antifungal activity All crude extracts were diluted to a final concentration of 500 μg ml − 1 in RPMI 1640 (InLab, São Paulo, Brazil) supplemented with 2% glucose (Vetec, Rio de Janeiro, Brazil) and MOPS (Sigma). Amphotericin B (Sigma) at 2.0 μg ml − 1 was ...
The compound18F-2-deoxy-2-fluoro-D-glucose has been shown to be an effective tracer for quantitatively mapping the first step of glycolysis in the brain and heart. It has also been used in the study of psychiatric conditions of patients. However, it is an analog of glucose rather than the...