Evidence map›Paper›PMID 30755655›Full record

ArticleScientific reports2019

Analysis of SMALP co-extracted phospholipids shows distinct membrane environments for three classes of bacterial membrane protein.

Alvin C K Teo, Sarah C Lee, Naomi L Pollock, Zoe Stroud, Stephen Hall, Alpesh Thakker, Andrew R Pitt, Timothy R Dafforn, Corinne M Spickett, David I Roper

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
5.2field-weighted citation impact, top 3% 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

36 citing papers in PubMed, 86 citations in OpenAlex.

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  9. Do Nanodisc Assembly Conditions Affect Natural Lipid Uptake?Journal of the American Society for Mass Spectrometry · 2023
    Article
  10. Article
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  15. Role of the membrane anchor in the regulation of Lck activity.The Journal of biological chemistry · 2022
    Article
  16. Review
  17. Review
  18. Article
  19. Review
  20. Detergent-Free Membrane Protein Purification Using SMA Polymer.Methods in molecular biology (Clifton, N.J.) · 2022
    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

10 authors at 3 institutions in 1 country.

Alvin C K TeoSchool of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry, CV4 7AL, UK.ORCID 0000-0001-5750-4793
Sarah C LeeSchool of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.ORCID 0000-0002-0557-6266
Naomi L PollockSchool of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.ORCID 0000-0003-0345-0923
Zoe StroudSchool of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
Stephen HallSchool of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.ORCID 0000-0003-0753-5123
Alpesh ThakkerSchool of Life and Health Sciences, Aston University, Aston Triangle, Birmingham, B4 7ET, UK.
Andrew R PittSchool of Life and Health Sciences, Aston University, Aston Triangle, Birmingham, B4 7ET, UK.ORCID 0000-0003-3619-6503
Timothy R DaffornSchool of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.ORCID 0000-0003-2257-6679
Corinne M SpickettSchool of Life and Health Sciences, Aston University, Aston Triangle, Birmingham, B4 7ET, UK. c.m.spickett@aston.ac.uk.ORCID 0000-0003-4054-9279
David I RoperSchool of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry, CV4 7AL, UK. david.roper@warwick.ac.uk.ORCID 0000-0003-0009-621X
University of Birmingham · GBAston University · GBUniversity of Warwick · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biological characterisation of membrane proteins lags behind that of soluble proteins. This reflects issues with the traditional use of detergents for extraction, as the surrounding lipids are generally lost, with adverse structural and functional consequences. In contrast, styrene maleic acid (SMA) copolymers offer a detergent-free method for biological membrane solubilisation to produce SMA-lipid particles (SMALPs) containing membrane proteins together with their surrounding lipid environment. We report the development of a reverse-phase LC-MS/MS method for bacterial phospholipids and the first comparison of the profiles of SMALP co-extracted phospholipids from three exemplar bacterial membrane proteins with different topographies: FtsA (associated membrane protein), ZipA (single transmembrane helix), and PgpB (integral membrane protein). The data showed that while SMA treatment per se did not preferentially extract specific phospholipids from the membrane, SMALP-extracted ZipA showed an enrichment in phosphatidylethanolamines and depletion in cardiolipins compared to the bulk membrane lipid. Comparison of the phospholipid profiles of the 3 SMALP-extracted proteins revealed distinct lipid compositions for each protein: ZipA and PgpB were similar, but in FtsA samples longer chain phosphatidylglycerols and phosphatidylethanolamines were more abundant. This method offers novel information on the phospholipid interactions of these membrane proteins.

Indexed as

Bacterial ProteinsCardiolipinsCarrier ProteinsCell Cycle ProteinsChromatography, LiquidEscherichia coli ProteinsMaleatesMembrane ProteinsPhosphatidate PhosphatasePhosphatidylethanolaminesPhosphatidylglycerolsPhospholipidsTandem Mass SpectrometryBacterial ProteinsCardiolipinsCarrier ProteinsCell Cycle ProteinsEscherichia coli ProteinsFtsA protein, BacteriaMaleatesmaleic acidMembrane ProteinsPgpB protein, E coliPhosphatidate PhosphatasePhosphatidylethanolaminesPhosphatidylglycerolsPhospholipidsZipA protein, E coli

Identifiers

PMID30755655
PMCPMC6372662
OpenAlexW2911469881

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.