کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
6452315 1417010 2016 23 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
ReviewBiotechnological production of fucosylated human milk oligosaccharides: Prokaryotic fucosyltransferases and their use in biocatalytic cascades or whole cell conversion systems
ترجمه فارسی عنوان
بررسی عملکرد بیولوژیکی الیگوساکارید های فوکوسیل شده شیر انسان: فوکوسیلتانسفرازهای پروکاریوتی و استفاده از آنها در آبشارهای بیو کاتالیتیک یا سیستم های تبدیل کل سلولی
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موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی


- Human milk oligosaccharides are important ingredients for health-related nutrition.
- Their production via multistep enzymatic cascades and using whole cells is reviewed.
- Recombinant production and properties of prokaryotic fucosyltransferases are summarized.
- Enzymatic fucosylation integrated with metabolism for GDP-l-fucose supply is described.
- Current bottlenecks of fucosylated HMO production are discussed.

Human milk oligosaccharides (HMOs) constitute a class of complex carbohydrates unique to mother's milk and are strongly correlated to the health benefits of breastfeeding in infants. HMOs are important as functional ingredients of advanced infant formula and have attracted broad interest for use in health-related human nutrition. About 50% of the HMOs structures contain l-fucosyl residues, which are introduced into nascent oligosaccharides by enzymatic transfer from GDP-l-fucose. To overcome limitation in the current availability of fucosylated HMOs, biotechnological approaches for their production have been developed. Functional expression of the fucosyltransferase(s) and effective supply of GDP-l-fucose, respectively, are both bottlenecks of the biocatalytic routes of synthesis. Strategies of in vitro and in vivo production of fucosylated HMOs are reviewed here. Besides metabolic engineering for enhanced HMO production in whole cells, the focus is on the characteristics and the heterologous overexpression of prokaryotic α1,2- and α1,3/4-fucosyltransferases. Up to 20 g/L of fucosylated HMOs were obtained in optimized production systems. Optimized expression enabled recovery of purified fucosyltransferases in a yield of up to 45 mg/L culture for α1,2-fucosyltransferases and of up to 200 mg protein/L culture for α1,3/4-fucosyltransferases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Biotechnology - Volume 235, 10 October 2016, Pages 61-83
نویسندگان
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