Chemoenzymatic synthesis of GD3 oligosaccharides and other disialyl glycans containing natural and non-natural sialic acids

H Yu, J Cheng, L Ding, Z Khedri, Y Chen… - Journal of the …, 2009 - ACS Publications
In order to understand the biological importance of naturally occurring sialic acid variations
on disialyl structures in nature, we developed an efficient two-step multienzyme approach for …

Enabling chemoenzymatic strategies and enzymes for synthesizing sialyl glycans and sialyl glycoconjugates

X Chen - Accounts of Chemical Research, 2023 - ACS Publications
Conspectus Sialic acids are fascinating negatively charged nine-carbon monosaccharides.
Sialic acid-containing glycans and glycoconjugates are structurally diverse, functionally …

Sialic acid metabolism and sialyltransferases: natural functions and applications

Y Li, X Chen - Applied microbiology and biotechnology, 2012 - Springer
Sialic acids are a family of negatively charged monosaccharides which are commonly
presented as the terminal residues in glycans of the glycoconjugates on eukaryotic cell …

Synthesis of sialic acid-containing saccharides

AK Adak, CC Yu, CF Liang, CC Lin - Current Opinion in Chemical Biology, 2013 - Elsevier
Highlights•Chemical synthesis provided access to O-linked and S-linked oligosialic
acids.•Oxazolidinone-protected sialyl donors enable α-selective sialylation.•Enzymatic …

A novel α-2, 6-sialyltransferase: transfer of sialic acid to fucosyl and sialyl trisaccharides

Y Kajihara, T Yamamoto, H Nagae… - The journal of …, 1996 - ACS Publications
The substrate specificity and enzymatic sialylation ability of the bacterium α-2, 6-
sialyltransferase were examined. The enzyme assay displayed a remarkable ability to …

[PDF][PDF] Recent strategies for stereoselective sialylation and their application to the synthesis of oligosialosides

S Hanashima - Trends Glycosci. Glycotechnol, 2011 - scholar.archive.org
Sialic acids on the non-reducing terminus of sialylgylcans are abundantly expressed on the
surface of mammalian cells. They play vital roles in cell-cell interactions and during infection …

Recent developments in enzymatic synthesis of modified sialic acid derivatives

CC Yu, SG Withers - Advanced Synthesis & Catalysis, 2015 - Wiley Online Library
Sialic acid‐containing glycans play important roles in biology, but their synthesis by
standard chemical approaches is challenging. Enzymatic assembly is generally a better …

Chemoenzymatic synthesis of C8-modified sialic acids and related α2–3-and α2–6-linked sialosides

H Yu, H Cao, VK Tiwari, Y Li, X Chen - Bioorganic & medicinal chemistry …, 2011 - Elsevier
Naturally occurring 8-O-methylated sialic acids, including 8-O-methyl-N-acetylneuraminic
acid and 8-O-methyl-N-glycolylneuraminic acid, along with 8-O-methyl-2-keto-3-deoxy-d …

[HTML][HTML] Bacterial sialyltransferases and their use in biocatalytic cascades for sialo-oligosaccharide production

S Schelch, C Zhong, B Petschacher, B Nidetzky - Biotechnology Advances, 2020 - Elsevier
Sialic acids are important recognition sites in protein-and lipid-linked glycans of higher
organisms and of select bacteria and protozoa. They are also prominent in human milk …

Chemoenzymatic synthesis of sialosides containing C7-modified sialic acids and their application in sialidase substrate specificity studies

Z Khedri, Y Li, S Muthana, MM Muthana, CW Hsiao… - Carbohydrate …, 2014 - Elsevier
Modifications at the glycerol side chain of sialic acid in sialosides modulate their recognition
by sialic acid-binding proteins and sialidases. However, limited work has been focused on …