Evidence map›Paper›PMID 21641306›Full record

ArticleBiophysical journal2011

Membrane thickness sensitivity of prestin orthologs: the evolution of a piezoelectric protein.

Chisako Izumi, Jonathan E Bird, Kuni H Iwasa

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.6field-weighted citation impact, top 40% of its field
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

12 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Review
  3. Structural Mechanism of Prestin-Membrane Mechanotransduction.bioRxiv : the preprint server for biology · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
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  12. 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

3 authors at 2 institutions in 1 country.

Chisako IzumiBiophysics Section, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Rockville, Maryland, USA.
Jonathan E Bird
Kuni H Iwasa
National Institutes of Health · USNational Institute on Deafness and Other Communication Disorders · US

Funding

Identification of Genes Causing Syndromic And Nonsyndromic Hearing ImpairmentZIADC000039 · NIDCD · NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS · PI FRIEDMAN, THOMAS · 2009 to 2025
$48.7M
Intramural NIH HHS
6 · The paper itself

Abstract

How proteins evolve new functionality is an important question in biology; prestin (SLC26A5) is a case in point. Prestin drives outer hair cell somatic motility and amplifies mechanical vibrations in the mammalian cochlea. The motility of mammalian prestin is analogous to piezoelectricity, in which charge transfer is coupled to changes in membrane area occupied by the protein. Intriguingly, nonmammalian prestin orthologs function as anion exchangers but are apparently nonmotile. We previously found that mammalian prestin is sensitive to membrane thickness, suggesting that prestin's extended conformation has a thinner hydrophobic height in the lipid bilayer. Because prestin-based motility is a mammalian specialization, we initially hypothesized that nonmotile prestin orthologs, while functioning as anion transporters, should be much less sensitive to membrane thickness. We found the exact opposite to be true. Chicken prestin was the most sensitive to thickness changes, displaying the largest shift in voltage dependence. Platypus prestin displayed an intermediate response to membrane thickness and gerbil prestin was the least sensitive. To explain these observations, we present a theory where force production, rather than displacement, was selected for the evolution of prestin as a piezoelectric membrane motor.

Indexed as

Evolution, MolecularSequence Homology, Amino AcidAnimalsBiomechanical PhenomenaCell MembraneChickensCHO CellsCricetinaeCricetulusElectric CapacitanceGerbillinaeHEK293 CellsHumansMembrane Transport ProteinsPlatypusProtein ConformationMembrane Transport Proteins

Identifiers

PMID21641306
PMCPMC3117168
OpenAlexW1991701109

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.