LIN28A is a suppressor of ER-associated translation in embryonic stem cells

Jun Cho, Hyeshik Chang, S. Chul Kwon, Baekgyu Kim, Yoosik Kim, Junho Choe, Minju Ha, Yoon Ki Kim, V. Narry Kim

Research output: Contribution to journalArticle

131 Citations (Scopus)

Abstract

LIN28 plays a critical role in developmental transition, glucose metabolism, and tumorigenesis. At the molecular level, LIN28 is known to repress maturation of let-7 microRNAs and enhance translation of certain mRNAs. In this study, we obtain a genome-wide view of the molecular function of LIN28A in mouse embryonic stem cells by carrying out RNA crosslinking-immunoprecipitation- sequencing (CLIP-seq) and ribosome footprinting. We find that, in addition to let-7 precursors, LIN28A binds to a large number of spliced mRNAs. LIN28A recognizes AAGNNG, AAGNG, and less frequently UGUG, which are located in the terminal loop of a small hairpin. LIN28A is localized to the periendoplasmic reticulum (ER) area and inhibits translation of mRNAs that are destined for the ER, reducing the synthesis of transmembrane proteins, ER or Golgi lumen proteins, and secretory proteins. Our study suggests a selective regulatory mechanism for ER-associated translation and reveals an unexpected role of LIN28A as a global suppressor of genes in the secretory pathway.

Original languageEnglish
Pages (from-to)765-777
Number of pages13
JournalCell
Volume151
Issue number4
DOIs
Publication statusPublished - 2012 Nov 9

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Embryonic Stem Cells
Stem cells
Protein Biosynthesis
Messenger RNA
Genes
Suppressor Genes
Reticulum
Proteins
Secretory Pathway
MicroRNAs
Ribosomes
Immunoprecipitation
Metabolism
Crosslinking
Carcinogenesis
Genome
RNA
Glucose

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Cho, J., Chang, H., Kwon, S. C., Kim, B., Kim, Y., Choe, J., ... Kim, V. N. (2012). LIN28A is a suppressor of ER-associated translation in embryonic stem cells. Cell, 151(4), 765-777. https://doi.org/10.1016/j.cell.2012.10.019

LIN28A is a suppressor of ER-associated translation in embryonic stem cells. / Cho, Jun; Chang, Hyeshik; Kwon, S. Chul; Kim, Baekgyu; Kim, Yoosik; Choe, Junho; Ha, Minju; Kim, Yoon Ki; Kim, V. Narry.

In: Cell, Vol. 151, No. 4, 09.11.2012, p. 765-777.

Research output: Contribution to journalArticle

Cho, J, Chang, H, Kwon, SC, Kim, B, Kim, Y, Choe, J, Ha, M, Kim, YK & Kim, VN 2012, 'LIN28A is a suppressor of ER-associated translation in embryonic stem cells', Cell, vol. 151, no. 4, pp. 765-777. https://doi.org/10.1016/j.cell.2012.10.019
Cho J, Chang H, Kwon SC, Kim B, Kim Y, Choe J et al. LIN28A is a suppressor of ER-associated translation in embryonic stem cells. Cell. 2012 Nov 9;151(4):765-777. https://doi.org/10.1016/j.cell.2012.10.019
Cho, Jun ; Chang, Hyeshik ; Kwon, S. Chul ; Kim, Baekgyu ; Kim, Yoosik ; Choe, Junho ; Ha, Minju ; Kim, Yoon Ki ; Kim, V. Narry. / LIN28A is a suppressor of ER-associated translation in embryonic stem cells. In: Cell. 2012 ; Vol. 151, No. 4. pp. 765-777.
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