Evidence map›Paper›PMID 10725361›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2000

Electrospray ionization mass spectrometry as a tool to analyze hydrogen/deuterium exchange kinetics of transmembrane peptides in lipid bilayers.

J A Demmers, J Haverkamp, A J Heck, R E Koeppe, J A Killian

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
5.1field-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

39 citing papers in PubMed, 100 citations in OpenAlex.

  1. Review
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  4. The Archaeal NaFrontiers in chemistry · 2021
    Review
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  8. Dynamic distinctions in the NaThe Journal of biological chemistry · 2017
    Article
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  12. Review
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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

5 authors at 1 institution in 1 country.

J A DemmersDepartment of Biochemistry of Membranes, Center for Biomembranes and Lipid Enzymology, Institute of Biomembranes, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands.
J Haverkamp
A J Heck
R E Koeppe
J A Killian
Utrecht University · NL

Funding

MECHANISM OF ION TRANSPORT THROUGH MEMBRANE CHANNELSR01GM034968 · NIGMS · UNIVERSITY OF ARKANSAS AT FAYETTEVILLE · PI KOEPPE, ROGER E · 1985 to 2001
$301k
NIGMS NIH HHS GM 34968
6 · The paper itself

Abstract

A method is described to study the precise positioning of transmembrane peptides in a phospholipid bilayer combining hydrogen/deuterium (H/D) exchange and nanoelectrospray ionization mass spectrometry. The method was tested by using model systems consisting of designed alpha-helical transmembrane peptides [acetylGW(2)(LA)(5)W(2)Aethanolamine (WALP16) and acetyl-(GA)(3)W(2)(LA)(5)W(2)(AG)(3)ethanolamine (WALP16(+10))] incorporated in large unilamellar vesicles of 1, 2-dimyristoyl-sn-glycero-3-phosphocholine. Both peptides consist of an alternating leucine/alanine hydrophobic core sequence flanked by tryptophan residues as interfacial anchor residues. In the case of WALP16(+10), this sequence is extended at both ends by 5-aa glycine/alanine tails extending into the aqueous phase surrounding the bilayer. H/D exchange of labile hydrogens in these peptides was monitored in time after dilution of the vesicles in buffered deuterium oxide. It was found that the peptides can be measured by direct introduction of the proteoliposome suspension into the mass spectrometer. Several distinct H/D exchange rates were observed (corresponding to half-life values varying from </=2 to approximately 2 x 10(4) min). Fast exchange rates were assigned to the water-exposed tails of WALP16(+10). For both WALP16 and WALP16(+10), intermediate exchange rates were assigned to the residues close to the membrane/water interface, and the slow exchange rates to the membrane-embedded hydrophobic core. These assignments were confirmed by results from collision-induced dissociation tandem mass spectrometry experiments, which allowed analysis of exchange of individual peptide amide linkages. This proteoliposome nanoelectrospray ionization mass spectrometry technique is shown to be an extremely sensitive and powerful tool for revealing site-specific information on peptide-membrane interactions.

Indexed as

Amino Acid SequenceDeuteriumHydrogenKineticsLipid BilayersMass SpectrometryMembrane ProteinsMolecular Sequence DataPeptidesDeuteriumHydrogenLipid BilayersMembrane ProteinsPeptides

Identifiers

PMID10725361
PMCPMC16214
OpenAlexW2135309948

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.