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RICKARD NORDSTRÖM HELENA ANDERSSON 《Journal of receptor and signal transduction research》2013,33(4):259-267
The human cannabinoid receptor 1 (CB1), a G protein-coupled receptor (GPCR), translocates its long amino-terminal (N-terminal) domain across the endoplasmic reticulum (ER) membrane in a C-to-N terminal direction. Using the Semliki Forest virus (SFV) expression system, CB1 was expressed in baby hamster kidney (BHK) cells. It was found that a large fraction of the CB1 molecules were N-terminally truncated prior to ER translocation. Truncation was fast and independent of the proteasome. It is concluded that the truncation process might be a way to create a novel type of CB1. 相似文献