2017年2月
Influence of aglycone structures on N-glycan processing reactions in the endoplasmic reticulum
CARBOHYDRATE RESEARCH
- ,
- ,
- ,
- 巻
- 439
- 号
- 開始ページ
- 16
- 終了ページ
- 22
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.carres.2016.12.008
- 出版者・発行元
- ELSEVIER SCI LTD
Glycoprotein N-linked oligosaccharides in the endoplasmic reticulum function as tags to regulate glycoprotein folding, sorting, secretion and degradation. Since the N-glycan structure of a glycoprotein should reflect the folding state, N-glycan processing may be affected by the aglycone state. In this study, we examined the influence of aglycone structures on N-glycan processing using synthetic substrates. We prepared (Glc(1))Man(9)GlcNAc(2) linked to hydrophobic BODIPY-dye with a systematic series of different linker lengths. With these compounds, glucose transfer, glucose trimming and mannose trimming reactions of an endoplasmic reticulum fraction were examined. The results showed that substrates with shorter linkers between the N-glycan and hydrophobic patch had higher activities for both the glucose transfer and the mannose trimming reactions. In contrast, the glucose trimming reaction showed lower activity when substrates had shorter linkers. Thus, the reactivity for N-linked oligosaccharide processing of glycoproteins in the endoplasmic reticulum might be tunable by the aglycone structure, e.g., protein portion of glycoproteins. (C) 2016 Elsevier Ltd. All rights reserved.
- リンク情報
- ID情報
-
- DOI : 10.1016/j.carres.2016.12.008
- ISSN : 0008-6215
- eISSN : 1873-426X
- PubMed ID : 28064042
- Web of Science ID : WOS:000394065400003