TMEM258 Is a Component of the Oligosaccharyltransferase Complex Controlling ER Stress and Intestinal Inflammation
Author(s)
Graham, Daniel B.
Lefkovith, Ariel
Deelen, Patrick
de Klein, Niek
Boroughs, Angela
Desch, A. Nicole
Ng, Aylwin C.Y.
Petersen, Christine P.
Bhan, Atul K.
Wijmenga, Cisca
Date Issued
December 2016
Journal
Cell Reports
Publisher
Elsevier
Citation
Graham, Daniel B., Ariel Lefkovith, Patrick Deelen, Niek de Klein, Mukund Varma, Angela Boroughs, A. Nicole Desch, et al. “TMEM258 Is a Component of the Oligosaccharyltransferase Complex Controlling ER Stress and Intestinal Inflammation.” Cell Reports 17, no. 11 (December 2016): 2955–2965.
Version
Final published version
Abstract
Summary - Significant insights into disease pathogenesis have been gleaned from population-level genetic studies; however, many loci associated with complex genetic disease contain numerous genes, and phenotypic associations cannot be assigned unequivocally. In particular, a gene-dense locus on chromosome 11 (61.5–61.65 Mb) has been associated with inflammatory bowel disease, rheumatoid arthritis, and coronary artery disease. Here, we identify TMEM258 within this locus as a central regulator of intestinal inflammation. Strikingly, Tmem258 haploinsufficient mice exhibit severe intestinal inflammation in a model of colitis. At the mechanistic level, we demonstrate that TMEM258 is a required component of the oligosaccharyltransferase complex and is essential for N-linked protein glycosylation. Consequently, homozygous deficiency of Tmem258 in colonic organoids results in unresolved endoplasmic reticulum (ER) stress culminating in apoptosis. Collectively, our results demonstrate that TMEM258 is a central mediator of ER quality control and intestinal homeostasis.
MIT Department
Massachusetts Institute of Technology. Department of Biology
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.celrep.2016.11.042
