Evidence map›Paper›PMID 12524294›Full record

ArticleBiophysical journal2003

Measuring distances in supported bilayers by fluorescence interference-contrast microscopy: polymer supports and SNARE proteins.

Volker Kiessling, Lukas K Tamm

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

66 citing papers in PubMed, 180 citations in OpenAlex.

  1. Article
  2. PI(4,5)PBiochimica et biophysica acta. Molecular and cell biology of lipids · 2025
    Review
  3. Article
  4. Article
  5. Review
  6. SNARE Proteins in Synaptic Vesicle Fusion.Advances in neurobiology · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Molecular height measurement by cell surface optical profilometry (CSOP).Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  13. Membrane-tethered mucin-like polypeptides sterically inhibit binding and slow fusion kinetics of influenza A virus.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  14. Article
  15. Interleaflet Coupling of Lipid Nanodomains - Insights FromFrontiers in cell and developmental biology · 2020
    Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Interfacing Cells with Vertical Nanoscale Devices: Applications and Characterization.Annual review of analytical chemistry (Palo Alto, Calif.) · 2018
    Review

6 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

2 authors at 1 institution in 1 country.

Volker KiesslingDepartment of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville 22908-0736, USA.
Lukas K Tamm
University of Virginia · US

Funding

Structural Dynamics of the Exocytotic Fusion Machine in Neurons.P01GM072694 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI TAMM, LUKAS K · 2005 to 2021
$17.4M
VIRAL SPIKE GLYCOPROTEIN-MEDIATED MEMBRANE POTENTIALR01AI030557 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI TAMM, LUKAS K · 1991 to 2022
$6.2M
MOLECULAR MECHANISMS OF VIRAL MEMBRANE FUSIONR37AI030557 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI TAMM, LUKAS K · 2003 to 2011
$3.4M
NIAID NIH HHS AI30557NIAID NIH HHS R01 AI030557NIAID NIH HHS R37 AI030557NIGMS NIH HHS P01 GM072694
6 · The paper itself

Abstract

Fluorescence interference-contrast (FLIC) microscopy is a powerful new technique to measure vertical distances from reflective surfaces. A pattern of varying intensity is created by constructive and destructive interference of the incoming and reflected light at the surface of an oxidized silicon chip. Different levels of this pattern are probed by manufacturing silicon chips with terraces of oxide layers of different heights. Fluorescence collected from membranes that are deposited on these terraces is then used to measure the distance of the fluorescent probes from the silicon oxide surface. Here, we applied the method to measure the distance between supported lipid bilayers and the surface of oxidized silicon chips. For plain fluid phosphatidylcholine bilayers, this distance was 1.7 +/- 1.0 nm. The cleft distance was increased to 3.9 +/- 0.9 nm in bilayers that were supported on a 3400-Da polyethylene glycol cushion. This distance is close to the Flory distance (4.8 nm) that would be expected for a grafted random coil of this polymer. In a second application, the distance of a membrane-bound protein from the membrane surface was measured. The integral membrane protein syntaxin1A/SNAP25 (t-SNARE) was reconstituted into tethered polymer-supported bilayers. A soluble form of the green fluorescent protein/vesicle-associated membrane protein (GFP-VAMP) was bound to the reconstituted t-SNAREs. The distance of the GFP from the membrane surface was 16.5 +/- 2.8 nm, indicating an upright orientation of the rod-shaped t-SNARE/v-SNARE complex from the membrane surface.

Indexed as

Vesicular Transport ProteinsAntigens, SurfaceGreen Fluorescent ProteinsLipid BilayersLiposomesLuminescent ProteinsMacromolecular SubstancesMembrane FluidityMembrane FusionMembrane ProteinsMembranes, ArtificialMicroscopy, FluorescenceMicroscopy, InterferenceMicrovilliMolecular ConformationNanotechnologyAntigens, SurfaceGreen Fluorescent ProteinsLipid BilayersLiposomesLuminescent ProteinsMacromolecular SubstancesMembrane ProteinsMembranes, ArtificialNerve Tissue ProteinsPolymersQuartzSNARE ProteinsSyntaxin 1Vesicular Transport Proteins

Identifiers

PMID12524294
PMCPMC1302622
OpenAlexW2089623748

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.