Evidence map›Paper›PMID 20433169›Full record

ArticleJournal of the American Chemical Society2010

Use of a copper-chelated lipid speeds up NMR measurements from membrane proteins.

Kazutoshi Yamamoto, Jiadi Xu, Karen E Kawulka, John C Vederas, Ayyalusamy Ramamoorthy

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
5.2field-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

31 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Metal-Chelated Polymer Nanodiscs for NMR Studies.Angewandte Chemie (International ed. in English) · 2019
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. GdJournal of biomolecular NMR · 2017
    Article
  9. Article
  10. Article
  11. Article
  12. Structural studies of proteins by paramagnetic solid-state NMR spectroscopy.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2015
    Article
  13. Article
  14. Article
  15. Article
  16. Article
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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 2 institutions in 2 countries.

Kazutoshi YamamotoDepartment of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, USA.
Jiadi Xu
Karen E Kawulka
John C Vederas
Ayyalusamy Ramamoorthy
University of Alberta · CAUniversity of Michigan–Ann Arbor · US

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
Purchase of a 500 MHz Solid State NMR SpectrometerS10RR023597 · NCRR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI RAMAMOORTHY, AYYALUSAMY · 2007 to 2007
$500k
NCRR NIH HHS RR023597NCRR NIH HHS S10 RR023597NIGMS NIH HHS GM084018NIGMS NIH HHS R01 GM084018
6 · The paper itself

Abstract

Recent studies have demonstrated the abilities of solid-state NMR techniques to solve atomic-level-resolution structures and dynamics of membrane-associated proteins and peptides. However, high-throughput applications of solid-state NMR spectroscopy are hampered by long acquisition times due to the low sensitivity of the technique. In this study, we demonstrate the use of a paramagnetic copper-chelated lipid to enhance the spin-lattice relaxation and thereby speed up solid-state NMR measurements. Fluid lamellar-phase bicelles composed of a lipid, detergent, and the copper-chelated lipid and containing a uniformly (15)N-labeled antimicrobial peptide, subtilosin A, were used at room temperature. The use of a chelating lipid reduces the concentration of free copper and limits RF-induced heating, a major problem for fluid samples. Our results demonstrate a 6.2-fold speed increase and a 2.7-fold improvement in signal-to-noise ratio for solid-state NMR experiments under magic-angle spinning and static conditions, respectively. Furthermore, solid-state NMR measurements are shown to be feasible even for nanomole concentrations of a membrane-associated peptide.

Indexed as

Chelating AgentsCopperLipid BilayersMagnetic Resonance SpectroscopyMembrane ProteinsTime FactorsChelating AgentsCopperLipid BilayersMembrane Proteins

Identifiers

PMID20433169
PMCPMC2874097
OpenAlexW1983190403

What OpenQuestion holds

Textmetadata
LicenceTDM
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.