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Unconventional secretion of transmembrane proteins

Authors
 Heon Yung Gee  ;  Jiyoon Kim  ;  Min Goo Lee 
Citation
 Seminars in Cell & Developmental Biology, Vol.83 : 59-66, 2018 
Journal Title
 Seminars in Cell & Developmental Biology 
ISSN
 1084-9521 
Issue Date
2018
Keywords
CFTR ; DNAJC14 ; GRASP ; Pendrin ; Secretory autophagy ; Transmembrane protein ; Unconventional secretion
Abstract
Over the past 20 years it has become evident that eukaryotic cells utilize both conventional and unconventional pathways to deliver proteins to their target sites. Most proteins with a signal peptide and/or a transmembrane domain are conventionally transported through the endoplasmic reticulum to the Golgi apparatus and then to the plasma membrane. However, an increasing number of both soluble cargos (Type I, II, and III) and integral membrane proteins (Type IV) have been found to reach the plasma membrane via unconventional protein secretion (UPS) pathways that bypass the Golgi apparatus under certain conditions, such as cellular stress or development. Well-known examples of transmembrane proteins that undergo Type IV UPS pathways are position-specific antigen subunit alpha 1 integrin, cystic fibrosis transmembrane conductance regulator, myeloproliferative leukemia virus oncogene, and pendrin. Although we collectively refer to all Golgi-bypassing routes as UPS, individual trafficking pathways are diverse compared to the conventional pathways, and the molecular mechanisms of UPS pathways are not yet completely defined. This review summarizes the intracellular trafficking pathways of UPS cargo proteins, particularly those with transmembrane domains, and discusses the molecular machinery involved in the UPS of transmembrane proteins.
Full Text
https://www.sciencedirect.com/science/article/pii/S1084952117301015
DOI
10.1016/j.semcdb.2018.03.016
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Pharmacology (약리학교실) > 1. Journal Papers
Yonsei Authors
Lee, Min Goo(이민구) ORCID logo https://orcid.org/0000-0001-7436-012X
Gee, Heon Yung(지헌영) ORCID logo https://orcid.org/0000-0002-8741-6177
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/163710
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