Evidence map›Paper›PMID 33641210›Full record

ArticleProtein science : a publication of the Protein Society2021

Measuring gas vesicle dimensions by electron microscopy.

Przemysław Dutka, Dina Malounda, Lauren Ann Metskas, Songye Chen, Robert C Hurt, George J Lu, Grant J Jensen, Mikhail G Shapiro

Open access · bronzeAbstract read
In one paragraph

Article in Protein science : a publication of the Protein Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 36 citations in OpenAlex.

  1. Protein engineering: status report.Protein engineering, design & selection : PEDS · 2026
    Review
  2. Acoustic percolation switches enable targeted drug delivery controlled by diagnostic ultrasound.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Article
  4. Article
  5. UltrasensitiveAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  6. Article
  7. Article
  8. Pressure estimation of ultra-high frequency ultrasound using gas vesicles.The Journal of the Acoustical Society of America · 2024
    Article
  9. Review
  10. Protein Gas Vesicles ofACS nano · 2024
    Article
  11. Article
  12. Truly Tiny Acoustic Biomolecules for Ultrasound Imaging and Therapy.Advanced materials (Deerfield Beach, Fla.) · 2024
    Article
  13. Review
  14. Article
  15. Truly tiny acoustic biomolecules for ultrasound imaging and therapy.bioRxiv : the preprint server for biology · 2023
    Article
  16. Article
  17. 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

8 authors at 2 institutions in 1 country.

Przemysław DutkaDivision of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, USA.ORCID 0000-0003-3819-1618
Dina MaloundaDivision of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, USA.ORCID 0000-0001-7086-9877
Lauren Ann MetskasDivision of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA.ORCID 0000-0002-8073-6960
Songye ChenDivision of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA.ORCID 0000-0001-5407-5049
Robert C HurtDivision of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA.ORCID 0000-0002-4347-6901
George J LuDivision of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, USA.ORCID 0000-0003-1556-4864
Grant J JensenDivision of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA.
Mikhail G ShapiroDivision of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, USA.ORCID 0000-0002-0291-4215
California Institute of Technology · USBrigham Young University · US

Funding

Biogenic Gas Nanostructures As Molecular Imaging Reporters For UltrasoundR01EB018975 · NIBIB · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI Mikhail Shapiro · 2014 to 2026
$5.9M
Imaging large macromolecular complexes inside cells with electron cryotomographyR35GM122588 · NIGMS · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI JENSEN, GRANT J · 2017 to 2020
$1.9M
Sonomagnetic Imaging and Sonomechanical Control of Biological Processes in Deep TissuesK99EB024600 · NIBIB · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI LU, GEORGE J · 2018 to 2019
$180k
NIBIB NIH HHS R01 EB018975NIGMS NIH HHS R35 GM122588
6 · The paper itself

Abstract

Gas vesicles (GVs) are cylindrical or spindle-shaped protein nanostructures filled with air and used for flotation by various cyanobacteria, heterotrophic bacteria, and Archaea. Recently, GVs have gained interest in biotechnology applications due to their ability to serve as imaging agents and actuators for ultrasound, magnetic resonance and several optical techniques. The diameter of GVs is a crucial parameter contributing to their mechanical stability, buoyancy function and evolution in host cells, as well as their properties in imaging applications. Despite its importance, reported diameters for the same types of GV differ depending on the method used for its assessment. Here, we provide an explanation for these discrepancies and utilize electron microscopy (EM) techniques to accurately estimate the diameter of the most commonly studied types of GVs. We show that during air drying on the EM grid, GVs flatten, leading to a ~1.5-fold increase in their apparent diameter. We demonstrate that GVs' diameter can be accurately determined by direct measurements from cryo-EM samples or alternatively indirectly derived from widths of flat collapsed and negatively stained GVs. Our findings help explain the inconsistency in previously reported data and provide accurate methods to measure GVs dimensions.

Indexed as

Microscopy, ElectronNanostructuresPlanktothrixcritical collapse pressurecryo-electron microscopydiameterelectron microscopygas vesiclesnegative staining

Identifiers

PMID33641210
PMCPMC8040859
OpenAlexW3135814287

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.