Enzymatic Building-Block Synthesis for Solid-Phase Automated Glycan Assembly.
Enzymatic Building-Block Synthesis for Solid-Phase Automated Glycan Assembly.
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DOI:
10.1002/anie.202008067
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发表时间:
2020-12-07
期刊:
影响因子:
--
通讯作者:
Flitsch SL
中科院分区:
文献类型:
--
作者:
Marchesi A;Parmeggiani F;Louçano J;Mattey AP;Huang K;Gupta T;Salwiczek M;Flitsch SL
Automated chemical oligosaccharide synthesis is an attractive concept that has been successfully applied to a large number of target structures, but requires excess quantities of suitably protected and activated building blocks. Herein we demonstrate the use of biocatalysis to supply such reagents for automated synthesis. By using the promiscuous NmLgtB‐B β1‐4 galactosyltransferase from Neisseria meningitidis we demonstrate fast and robust access to the LacNAc motif, common to many cell‐surface glycans, starting from either lactose or sucrose as glycosyl donors. The enzymatic product was shown to be successfully incorporated as a complete unit into a tetrasaccharide target by automated assembly. In a chemoenzymatic approach to oligosaccharide synthesis, the scalability potential of enzymatic synthesis was exploited for the preparative synthesis of a relevant N‐acetyllactosamine disaccharide building block. This disaccharide was then applied successfully to the automated synthesis of a target oligosaccharide using the glycan synthesizer Glyconeer 2.1 (see scheme).
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DOI:
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发表时间:
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期刊:
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影响因子:
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DOI:
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发表时间:
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期刊:
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影响因子:
--
作者:
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通讯作者:
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影响因子:
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