Evidence map›Paper›PMID 24777684›Full record

ArticleAngewandte Chemie (International ed. in English)2014

Control of the conductance of engineered protein nanopores through concerted loop motions.

Tiandi Zhuang, Lukas K Tamm

Abstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Article
  2. Barrel expansion of outer membrane protein G nanopore through β-hairpin duplication.Protein science : a publication of the Protein Society · 2025
    Article
  3. Review
  4. Article
  5. Fast slow folding of an outer membrane porin.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Global redesign of a native β-barrel scaffold.Biochimica et biophysica acta · 2016
    Article
  18. 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

2 authors.

Tiandi ZhuangDepartment of Molecular Physiology and Biological Physics and Center for Membrane Biology, University of Virginia School of Medicine, P.O. Box 800886, Charlottesville, VA 22908 (USA) http://tammlab.medicine.virginia.edu/
Lukas K Tamm

Funding

Women's Oncology Program - WONP30CA044579 · NCI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI Thomas P. Loughran · 1987 to 2026
$72.1M
Structure, Assembly, and Function of Outer Membrane ProteinsR01GM051329 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI TAMM, LUKAS K · 1997 to 2018
$6.4M
NEW CATIONIC PHOSPHOLIPIDS FOR TRANSFECTIONR01GM052329 · NIGMS · NORTHWESTERN UNIVERSITY · PI MACDONALD, ROBERT C · 1995 to 2004
$941k
NCI NIH HHS P30 CA044579NIGMS NIH HHS R01 GM051329NIGMS NIH HHS R01 GM052329NIGMS NIH HHS R01 GM51329
6 · The paper itself

Abstract

Protein nanopores have attracted much interest for nucleic acid sequencing, chemical sensing, and protein folding at the single molecule level. The outer membrane protein OmpG from E. coli stands out because it forms a nanopore from a single polypeptide chain. This property allows the separate engineering of each of the seven extracellular loops that control access to the pore. The longest of these loops, loop 6, has been recognized as the main gating loop that closes the pore at low pH values and opens it at high pH values. A method was devised to pin each of the loops to the embedding membrane and measure the single-pore conductances of the resulting constructs. The electrophysiological and complementary NMR measurements show that the pinning of individual loops alters the structure and dynamics of neighboring and distant loops in a correlated fashion. Pinning loop 6 generates a constitutively open pore and patterns of concerted loop motions control access to the OmpG nanopore.

Indexed as

NanoporesMembrane ProteinsProtein EngineeringMembrane ProteinselectrophysiologyNMR spectroscopyporinsprotein engineeringprotein nanopores

Identifiers

PMID24777684
PMCPMC4091679

What OpenQuestion holds

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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.