Evidence map›Paper›PMID 18334215›Full record

ArticleStructure (London, England : 1993)2008

Structural dynamics of an isolated voltage-sensor domain in a lipid bilayer.

Sudha Chakrapani, Luis G Cuello, D Marien Cortes, Eduardo Perozo

Abstract read
In one paragraph

Article in Structure (London, England : 1993), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing 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

69 citing papers in PubMed.

  1. Article
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  4. Comparison of KHandbook of experimental pharmacology · 2021
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  12. Gating-induced large aqueous volumetric remodeling and aspartate tolerance in the voltage sensor domain of Shaker KProceedings of the National Academy of Sciences of the United States of America · 2018
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  13. Review
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  15. Article
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  19. Review
  20. Review

9 more citing papers are in PubMed but not listed here.

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

4 authors.

Sudha ChakrapaniInstitute for Biophysical Dynamics, Center for Integrative Science, University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA.
Luis G Cuello
D Marien Cortes
Eduardo Perozo

Funding

HIGH RESOLUTION STRUCTURAL DYNAMICS OF K CHANNELSR01GM057846 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI PEROZO, EDUARDO A · 1998 to 2018
$7.4M
NIGMS NIH HHS R01 GM057846
6 · The paper itself

Abstract

A strong interplay between the voltage-sensor domain (VSD) and the pore domain (PD) underlies voltage-gated channel functions. In a few voltage-sensitive proteins, the VSD has been shown to function without a canonical PD, although its structure and oligomeric state remain unknown. Here, using EPR spectroscopy, we show that the isolated VSD of KvAP can remain monomeric in a reconstituted bilayer and retain a transmembrane conformation. We find that water-filled crevices extending deep into the membrane around S3, a scaffold conducive to transport of protons/cations, are intrinsic to the VSD. Differences in solvent accessibility in comparison to the full-length KvAP allowed us to define an interacting footprint of the PD on the VSD. This interaction is centered around S1 and S2 and suggests a rotation of 70 degrees -100 degrees relative to Kv1.2-Kv2.1 chimera. Sequence-conservation patterns in Kv channels, Hv channels, and voltage-sensitive phosphatases reveal several near-universal features suggesting a common molecular architecture for all VSDs.

Indexed as

Amino Acid SequenceIon Channel GatingKv1.2 Potassium ChannelLipid BilayersModels, BiologicalModels, MolecularMolecular Sequence DataPotassium Channels, Voltage-GatedProtein Structure, TertiarySequence Homology, Amino AcidKv1.2 Potassium ChannelLipid BilayersPotassium Channels, Voltage-Gated

Identifiers

PMID18334215
PMCPMC2703488

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.