Diverse cellular strategies for the export of leaderless proteins

Unconventional protein export/secretion (UPE/UPS), in contrast to the classical ER-Golgi-dependent export/secretion of proteins with a leader sequence (signal peptide), employs multiple means to release leaderless cargoes (and in some special cases, cargoes with a leader sequence) to the extracellul...

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Main Authors: Zheng Jianfei, Ge Liang
Format: Article
Language:English
Published: Science Press 2022-08-01
Series:National Science Open
Subjects:
Online Access:https://www.sciengine.com/doi/10.1360/nso/20220018
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author Zheng Jianfei
Ge Liang
author_facet Zheng Jianfei
Ge Liang
author_sort Zheng Jianfei
collection DOAJ
description Unconventional protein export/secretion (UPE/UPS), in contrast to the classical ER-Golgi-dependent export/secretion of proteins with a leader sequence (signal peptide), employs multiple means to release leaderless cargoes (and in some special cases, cargoes with a leader sequence) to the extracellular space. By far, two major types of UPE have been classified, vesicle-independent UPE and vesicle-dependent UPE. In the former, UPE cargoes can directly translocate across the plasma membrane from the cytoplasm without the assistance of a vesicle carrier. In the latter, UPE cargoes translocate into the lumen of a vesicle which then delivers them out of the cell through membrane trafficking. Both types of UPE require multiple unconventional solutions to complete secretion. Here, we briefly discuss the multiple strategies for a UPE cargo release, focusing on two key steps of leaderless cargoes release in UPE: protein translocation and membrane trafficking.
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spelling doaj-art-a4f6d16bab5b488c83ed2b533c2c52062025-08-20T02:46:29ZengScience PressNational Science Open2097-11682022-08-01110.1360/nso/20220018eb33e642Diverse cellular strategies for the export of leaderless proteinsZheng Jianfei0Ge Liang1[][]Unconventional protein export/secretion (UPE/UPS), in contrast to the classical ER-Golgi-dependent export/secretion of proteins with a leader sequence (signal peptide), employs multiple means to release leaderless cargoes (and in some special cases, cargoes with a leader sequence) to the extracellular space. By far, two major types of UPE have been classified, vesicle-independent UPE and vesicle-dependent UPE. In the former, UPE cargoes can directly translocate across the plasma membrane from the cytoplasm without the assistance of a vesicle carrier. In the latter, UPE cargoes translocate into the lumen of a vesicle which then delivers them out of the cell through membrane trafficking. Both types of UPE require multiple unconventional solutions to complete secretion. Here, we briefly discuss the multiple strategies for a UPE cargo release, focusing on two key steps of leaderless cargoes release in UPE: protein translocation and membrane trafficking.https://www.sciengine.com/doi/10.1360/nso/20220018secretionGSDMDIL-1unconventional protein secretiontranslocationERGICautophagosomemulti-vesicular bodylysosomevesicle transportFGF2
spellingShingle Zheng Jianfei
Ge Liang
Diverse cellular strategies for the export of leaderless proteins
National Science Open
secretion
GSDMD
IL-1
unconventional protein secretion
translocation
ERGIC
autophagosome
multi-vesicular body
lysosome
vesicle transport
FGF2
title Diverse cellular strategies for the export of leaderless proteins
title_full Diverse cellular strategies for the export of leaderless proteins
title_fullStr Diverse cellular strategies for the export of leaderless proteins
title_full_unstemmed Diverse cellular strategies for the export of leaderless proteins
title_short Diverse cellular strategies for the export of leaderless proteins
title_sort diverse cellular strategies for the export of leaderless proteins
topic secretion
GSDMD
IL-1
unconventional protein secretion
translocation
ERGIC
autophagosome
multi-vesicular body
lysosome
vesicle transport
FGF2
url https://www.sciengine.com/doi/10.1360/nso/20220018
work_keys_str_mv AT zhengjianfei diversecellularstrategiesfortheexportofleaderlessproteins
AT geliang diversecellularstrategiesfortheexportofleaderlessproteins