CH-π Interactions in Glycan Recognition.
CH-π Interactions in Glycan Recognition.
复制标题
聚糖识别中的CH-π相互作用。
DOI:
10.1021/acschembio.1c00413
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发表时间:
2021-10-15
影响因子:
4
通讯作者:
Diehl, Roger C.
中科院分区:
文献类型:
--
作者:
Kiessling, Laura L.;Diehl, Roger C.
Carbohydrate recognition is crucial for biological processes ranging from development to immune system function to host-pathogen interactions. The proteins that bind glycans are faced with a daunting task — to coax these hydrophilic species out of water and into a binding site. Here, we examine the forces underlying glycan recognition by proteins. Our previous bioinformatic study of glycan-binding sites indicated that the most over-represented side chains are electron-rich aromatic residues, including tyrosine and tryptophan. These findings point to the importance of CH-π interactions for glycan binding. Studies of CH-π interactions show a strong dependence on the presence of an electron-rich π-system, and the data indicate binding is enhanced by complementary electronic interactions between the electron-rich aromatic ring and the partial positive charge of the carbohydrate C-H protons. This electronic dependence means that carbohydrate residues with multiple aligned highly polarized C-H bonds, such as β-galactose, form strong CH-π interactions, whereas less polarized residues such as α-mannose do not. This information can guide the design of proteins to recognize sugars and the generation of ligands for proteins, small molecules, or catalysts that bind sugars
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影响因子:
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作者:
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通讯作者:
Kelly, Jeffery W.
影响因子:
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DOI:
10.1107/s0907444900002353
发表时间:
2000-05-01
影响因子:
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作者:
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通讯作者:
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通讯作者:
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