Translational tuning optimizes nascent protein folding in cells

Soo Jung Kim, Jae Seok Yoon, Hideki Shishido, Zhongying Yang, LeeAnn A. Rooney, Jose M. Barral, William Skach

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

In cells, biosynthetic machinery coordinates protein synthesis and folding to optimize efficiency and minimize off-pathway outcomes. However, it has been difficult to delineate experimentally the mechanisms responsible. Using fluorescence resonance energy transfer, we studied cotranslational folding of the first nucleotide-binding domain from the cystic fibrosis transmembrane conductance regulator. During synthesis, folding occurred discretely via sequential compaction of N-terminal, α-helical, and α/β-core subdomains. Moreover, the timing of these events was critical; premature α-subdomain folding prevented subsequent core formation. This process was facilitated by modulating intrinsic folding propensity in three distinct ways: delaying a-subdomain compaction, facilitating β-strand intercalation, and optimizing translation kinetics via codon usage. Thus, de novo folding is translationally tuned by an integrated cellular response that shapes the cotranslational folding landscape at critical stages of synthesis.

Original languageEnglish (US)
Pages (from-to)444-448
Number of pages5
JournalScience
Volume348
Issue number6233
DOIs
StatePublished - Apr 24 2015

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Cystic Fibrosis Transmembrane Conductance Regulator
Fluorescence Resonance Energy Transfer
Protein Folding
Codon
Nucleotides

ASJC Scopus subject areas

  • General
  • Medicine(all)

Cite this

Kim, S. J., Yoon, J. S., Shishido, H., Yang, Z., Rooney, L. A., Barral, J. M., & Skach, W. (2015). Translational tuning optimizes nascent protein folding in cells. Science, 348(6233), 444-448. https://doi.org/10.1126/science.aaa3974

Translational tuning optimizes nascent protein folding in cells. / Kim, Soo Jung; Yoon, Jae Seok; Shishido, Hideki; Yang, Zhongying; Rooney, LeeAnn A.; Barral, Jose M.; Skach, William.

In: Science, Vol. 348, No. 6233, 24.04.2015, p. 444-448.

Research output: Contribution to journalArticle

Kim, SJ, Yoon, JS, Shishido, H, Yang, Z, Rooney, LA, Barral, JM & Skach, W 2015, 'Translational tuning optimizes nascent protein folding in cells', Science, vol. 348, no. 6233, pp. 444-448. https://doi.org/10.1126/science.aaa3974
Kim SJ, Yoon JS, Shishido H, Yang Z, Rooney LA, Barral JM et al. Translational tuning optimizes nascent protein folding in cells. Science. 2015 Apr 24;348(6233):444-448. https://doi.org/10.1126/science.aaa3974
Kim, Soo Jung ; Yoon, Jae Seok ; Shishido, Hideki ; Yang, Zhongying ; Rooney, LeeAnn A. ; Barral, Jose M. ; Skach, William. / Translational tuning optimizes nascent protein folding in cells. In: Science. 2015 ; Vol. 348, No. 6233. pp. 444-448.
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