Protein native-state stabilization by placing aromatic side chains in N-glycosylated reverse turns.
Protein native-state stabilization by placing aromatic side chains in N-glycosylated reverse turns.
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DOI:
10.1126/science.1198461
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发表时间:
2011-02-04
期刊:
影响因子:
--
通讯作者:
Kelly JW
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文献类型:
--
作者:
Culyba EK;Price JL;Hanson SR;Dhar A;Wong CH;Gruebele M;Powers ET;Kelly JW
N-glycosylation of eukaryotic proteins helps them fold and traverse the cellular secretory pathway and can increase their stability, although the molecular basis for stabilization is poorly understood. Glycosylation of proteins at naïve sites (ones that normally are not glycosylated) could be useful for therapeutic and research applications, but currently results in unpredictable changes to protein stability. We show that placing a Phe residue two or three positions prior to a glycosylated Asn in distinct reverse turns facilitates stabilizing interactions between the aromatic side chain and the first N-acetylglucosamine (GlcNAc) of the glycan. Glycosylating this portable structural module, an “enhanced aromatic sequon”, in three different proteins stabilizes their native states by −0.7 to −2.0 kilocalories per mole and increases cellular glycosylation efficiency.
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DOI:
10.1083/jcb.200808124
发表时间:
2009-03-23
期刊:
The Journal of cell biology
影响因子:
--
作者:
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影响因子:
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DOI:
10.1111/j.1432-1033.1991.tb15995.x
发表时间:
1991-05-23
期刊:
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影响因子:
--
作者:
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通讯作者:
DWEK, RA