Evidence map›Paper›PMID 30707909›Full record

ReviewChemistry and physics of lipids2019

Polymer nanodiscs: Advantages and limitations.

Thirupathi Ravula, Nathaniel Z Hardin, Ayyalusamy Ramamoorthy

Abstract readReview
In one paragraph

Review in Chemistry and physics of lipids, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing 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

53 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. The Nanodisc System for Investigating Protein-Lipid Interactions.Methods in molecular biology (Clifton, N.J.) · 2026
    Review
  11. Review
  12. Review
  13. Examining the thermotropic properties of large circularized nanodiscs.Biochimica et biophysica acta. Biomembranes · 2025
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  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

3 authors.

Thirupathi RavulaBiophysics Program, The University of Michigan, Ann Arbor, MI 48109-1055, USA; Department of Chemistry, The University of Michigan, Ann Arbor, MI 48109-1055, USA.
Nathaniel Z HardinDepartment of Chemistry, The University of Michigan, Ann Arbor, MI 48109-1055, USA.
Ayyalusamy RamamoorthyBiophysics Program, The University of Michigan, Ann Arbor, MI 48109-1055, USA; Department of Chemistry, The University of Michigan, Ann Arbor, MI 48109-1055, USA; Biomedical Engineering, The University of Michigan, Ann Arbor, MI 48109-1055, USA; Macromolecular Science and Engineering, The University of Michigan, Ann Arbor, MI 48109-1055, USA. Electronic address: ramamoor@umich.edu.

Funding

Supplement: Investigation of Membrane-Bound Cytochromes-P450-b5 InteractionsR01GM084018 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI RAMAMOORTHY, AYYALUSAMY · 2009 to 2018
$3.8M
Development of biophysical approaches to investigate high-resolution structure and dynamics of membrane proteinsR35GM139573 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Ayyalusamy Ramamoorthy · 2021 to 2026
$2.0M
NIGMS NIH HHS R01 GM084018NIGMS NIH HHS R35 GM139573
6 · The paper itself

Abstract

There is considerable interest in the development of membrane mimetics to study the structure, dynamics and function of membrane proteins. Polymer nanodiscs have been useful as a membrane mimetic by not only providing a native-like membrane environment, but also have the ability to extract the desired membrane protein directly from the cell membrane. In spite of such great potential, polymer nanodiscs have their disadvantages including lack of size control and instability at low pH and with divalent metals. In this review, we discuss how these limitations have been overcome by simple modifications of synthetic polymers commonly used to form nanodiscs. Recently, size control has been achieved using an ethanolamine functionalization of a low molecular weight polymer. This size control enabled the use of polymer-based lipid-nanodiscs in solution NMR and macro-nanodiscs in solid-state NMR applications. The introduction of quaternary ammonium functional groups has been shown to improve the stability in the presence of low pH and divalent metal ions, forming highly monodispersed nanodiscs. The polymer charge has been shown to play a significant role on the reconstitution of membrane proteins due to the high charge density on the nanodisc's belt. These recent developments have expanded the applications of polymer nanodiscs to study the membrane proteins using wide variety of techniques including NMR, Cryo-EM and other biophysical techniques.

Indexed as

EthanolamineHydrogen-Ion ConcentrationMagnetic Resonance SpectroscopyMembrane ProteinsNanostructuresPolymersPolystyrenesEthanolamineMembrane ProteinsPolymersPolystyrenesstyrofoamMembrane proteinspH resistantPolymer chargePolymer nanodiscsSize controlSolid-state NMR

Identifiers

PMID30707909
PMCPMC6497063

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Registered trials

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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.