Evidence map›Paper›PMID 18840693›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

Molecular code for protein insertion in the endoplasmic reticulum membrane is similar for N(in)-C(out) and N(out)-C(in) transmembrane helices.

Carolina Lundin, Hyun Kim, IngMarie Nilsson, Stephen H White, Gunnar von Heijne

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed.

  1. Article
  2. Article
  3. Spiers Memorial Lecture: Analysis andFaraday discussions · 2021
    Article
  4. Efficient integration of transmembrane domains depends on the folding properties of the upstream sequences.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Marginally hydrophobic transmembrane α-helices shaping membrane protein folding.Protein science : a publication of the Protein Society · 2015
    Review
  15. Review
  16. Article
  17. Article
  18. Folding of Aquaporin 1: multiple evidence that helix 3 can shift out of the membrane core.Protein science : a publication of the Protein Society · 2014
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Carolina LundinCenter for Biomembrane Research, Department of Biochemistry and Biophysics, Stockholm University, SE-106 91 Stockholm, Sweden.
Hyun Kim
IngMarie Nilsson
Stephen H White
Gunnar von Heijne

Funding

Membrane Protein Folding and AssemblyR01GM074637 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI WHITE, STEPHEN H. · 2006 to 2020
$4.5M
6 · The paper itself

Abstract

Transmembrane alpha-helices in integral membrane proteins can have two orientations in the membrane: N(in)-C(out) or N(out)-C(in). Previous studies of model N(out)-C(in) transmembrane segment have led to a detailed, quantitative picture of the "molecular code" that relates amino acid sequence to membrane insertion efficiency in vivo [Hessa T, et al. (2007) Molecular code for transmembrane helix recognition by the Sec61 translocon. Nature 450:1026-1030], but whether the same code applies also to N(in)-C(out) transmembrane helices is unknown. Here, we show that the contributions of individual amino acids to the overall efficiency of membrane insertion are similar for the two kinds of helices and that the threshold hydrophobicity for membrane insertion can be up to approximately 1 kcal/mol lower for N(in)-C(out) compared with N(out)-C(in) transmembrane helices, depending on the neighboring helices.

Indexed as

Models, BiologicalAmino Acid SequenceEndoplasmic ReticulumHydrophobic and Hydrophilic InteractionsIntracellular MembranesProteinsProtein Structure, SecondaryProtein TransportProteins

Identifiers

PMID18840693
PMCPMC2572976

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.