Analyzing the topology of N-linked glycans by PNGase F accessibility assay.
Analyzing the topology of N-linked glycans by PNGase F accessibility assay.
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DOI:
10.1016/j.xpro.2023.102458
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发表时间:
2023-09-15
期刊:
影响因子:
--
通讯作者:
Ye, Jin
中科院分区:
文献类型:
--
作者:
Wang, Jingcheng;Ye, Jin
While N-glycans are synthesized in the lumens, some of them reach the cytosolic side of membranes through retro-translocation independent of endoplasmic-reticulum-associated degradation. Here, we present a protocol to measure the topology of N-glycans in a transmembrane protein, based on the principle that cytosolic but not luminal N-glycans are trimmed by PNGase F in the absence of detergent. We describe the procedures for this protocol consisting of microsome preparation from cells, PNGase F accessibility assay, and western blot analysis. For complete details on the use and execution of this protocol, please refer to Wang et al. Protocol for identifying localization of N-glycans on intracellular organelle proteins Steps for preparing microsomes and performing PNGase F accessibility assay Assay to measure the deglycosylation of proteins in microsomes Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics. While N-glycans are synthesized in the lumens, some of them reach the cytosolic side of membranes through retro-translocation independent of endoplasmic-reticulum-associated degradation. Here, we present a protocol to measure the topology of N-glycans in a transmembrane protein, based on the principle that cytosolic but not luminal N-glycans are trimmed by PNGase F in the absence of detergent. We describe the procedures for this protocol consisting of microsome preparation from cells, PNGase F accessibility assay, and western blot analysis.
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影响因子:
7.4
作者:
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Heck, Albert J. R.
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通讯作者:
Ye, Jin
影响因子:
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LAEMMLI, UK
通讯作者:
LAEMMLI, UK