Anomeric Fatty Acid Functionalization Prevents Nonenzymatic S-Glycosylation by Monosaccharide Metabolic Chemical Reporters.
Anomeric Fatty Acid Functionalization Prevents Nonenzymatic S-Glycosylation by Monosaccharide Metabolic Chemical Reporters.
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DOI:
10.1021/acschembio.1c00470
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发表时间:
2021-10-15
影响因子:
4
通讯作者:
Pratt MR
中科院分区:
文献类型:
--
作者:
Pedowitz NJ;Jackson EG;Overhulse JM;McKenna CE;Kohler JJ;Pratt MR
Metabolic chemical reports have fundamentally changed the way researchers study glycosylation. However, when administered as per-O-acetylated sugars, reporter molecules can participate in non-specific chemical labeling of cysteine residues termed S-glycosylation. Without detailed proteomic analyses these labeling events can be indistinguishable from bona fide enzymatic labeling convoluting experimental results. Here, we report a solution in the synthesis and characterization of two reporter molecules functionalized at the anomeric position with hexanoic acid: 1-Hex-GlcNAlk and 1-Hex-6AzGlcNAc. Both reporters exhibit robust labeling over background with negligible amounts of non-specific chemical labeling in cell lysates. This strategy serves as a template for the design of future reporter molecules allowing for more reliable interpretation of results.
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