Selective exo-enzymatic labeling of N-glycans on the surface of living cells by recombinant ST6Gal I.

Selective exo-enzymatic labeling of N-glycans on the surface of living cells by recombinant ST6Gal I.
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DOI:
10.1002/anie.201307095
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发表时间:
2013-12-02
影响因子:
16.6
通讯作者:
Boons, Geert-Jan
Boons, Geert-Jan
中科院分区:
化学1区
文献类型:
--
作者:
Mbua, Ngalle Eric;Li, Xiuru;Flanagan-Steet, Heather R.;Meng, Lu;Aoki, Kazuhiro;Moremen, Kelley W.;Wolfert, Margreet A.;Steet, Richard;Boons, Geert-Jan

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活细胞的N-聚糖可以通过外源施用的重组ST 6 Gal I唾液酸转移酶和叠氮基修饰的CMP-Neu 5Ac,然后使用生物素修饰的二苄基环辛炔醇(DIBO)进行菌株促进的环加成来选择性地标记。该方法将使人们有可能剖析的机制,改变糖缀合物的回收和储存的疾病,并确定糖缀合物的细胞表面定位或分泌受到影响。
N-Glycans of living cells could be selectively tagged by exogenously administered recombinant ST6Gal I sialyltransferase and azido-modified CMP-Neu5Ac followed by a strain promoted cycloaddition using biotin modified dibenzylcyclooctynol (DIBO). The methodology will make it possible to dissect the mechanisms that underlie altered glycoconjugate recycling and storage in disease and identify the glycoconjugates whose cell surface localization or secretion are affected.
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