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FEBS Lett. 2007 Jul 31;581(19):3641-51. Epub 2007 Apr 25.

ER chaperones in mammalian development and human diseases.

Author information

1
Department of Biochemistry and Molecular Biology, USC/Norris Comprehensive Cancer Center, Keck School of Medicine of the University of Southern California, 1441 Eastlake Ave., Los Angeles, CA 90089-9176, United States.

Abstract

The field of endoplasmic reticulum (ER) stress in mammalian cells has expanded rapidly during the past decade, contributing to understanding of the molecular pathways that allow cells to adapt to perturbations in ER homeostasis. One major mechanism is mediated by molecular ER chaperones which are critical not only for quality control of proteins processed in the ER, but also for regulation of ER signaling in response to ER stress. Here, we summarized the properties and functions of GRP78/BiP, GRP94/gp96, GRP170/ORP150, GRP58/ERp57, PDI, ERp72, calnexin, calreticulin, EDEM, Herp and co-chaperones SIL1 and P58(IPK) and their role in development and diseases. Many of the new insights are derived from recently constructed mouse models where the genes encoding the chaperones are genetically altered, providing invaluable tools for examining the physiological involvement of the ER chaperones in vivo.

PMID:
17481612
PMCID:
PMC2040386
DOI:
10.1016/j.febslet.2007.04.045
[Indexed for MEDLINE]
Free PMC Article

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