Evidence map›Paper›PMID 34724614›Full record

ArticleJournal of the American Chemical Society2021

In-Cell Sensitivity-Enhanced NMR of Intact Viable Mammalian Cells.

Rupam Ghosh, Yiling Xiao, Jaka Kragelj, Kendra K Frederick

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

42 citing papers in PubMed, 66 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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  5. Article
  6. Solid-state NMR of membrane proteins in situ.Current opinion in structural biology · 2025
    Review
  7. Pushing Sensitivity and Specificity Limits in Native Structural Biology:Journal of the American Chemical Society · 2025
    Article
  8. Article
  9. Article
  10. Spatially resolved DNP-assisted NMR illuminates the conformational ensemble of α-synuclein in intact viable cells.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  11. Stability of the polarization agent AsymPolPOK in intact and lysed mammalian cells.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2025
    Article
  12. Article
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  14. 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

4 authors at 1 institution in 1 country.

Rupam GhoshDepartment of Biophysics, UT Southwestern Medical Center, Dallas, Texas 75390-8816, United States.ORCID 0000-0002-3095-621X
Yiling XiaoDepartment of Biophysics, UT Southwestern Medical Center, Dallas, Texas 75390-8816, United States.
Jaka KrageljDepartment of Biophysics, UT Southwestern Medical Center, Dallas, Texas 75390-8816, United States.ORCID 0000-0001-6472-8429
Kendra K FrederickDepartment of Biophysics, UT Southwestern Medical Center, Dallas, Texas 75390-8816, United States.ORCID 0000-0002-1656-5167
Southwestern Medical Center · US

Funding

UT Southwestern Medical Center Simmons Comprehensive Cancer CenterP30CA142543 · NCI · UT SOUTHWESTERN MEDICAL CENTER · PI MELANIE H. COBB · 2010 to 2026
$53.7M
High sensitivity NMR for structure determination of neurodegenerative disease associated protein aggregates in native contextsDP2NS111236 · NINDS · UT SOUTHWESTERN MEDICAL CENTER · PI FREDERICK, KENDRA KING · 2018 to 2018
$2.4M
NCI NIH HHS P30 CA142543NINDS NIH HHS DP2 NS111236
6 · The paper itself

Abstract

NMR has the resolution and specificity to determine atomic-level protein structures of isotopically labeled proteins in complex environments, and with the sensitivity gains conferred by dynamic nuclear polarization (DNP), NMR has the sensitivity to detect proteins at their endogenous concentrations. However, DNP sensitivity enhancements are critically dependent on experimental conditions and sample composition. While some of these conditions are theoretically compatible with cellular viability, the effects of others on cellular sample integrity are unknown. Uncertainty about the integrity of cellular samples limits the utility of experimental outputs of in-cell experiments. Using several measures, we establish conditions that support DNP enhancements that can enable detection of micromolar concentrations of proteins in experimentally tractable times that are compatible with cellular viability. Taken together, we establish DNP-assisted MAS NMR as a technique for structural investigations of biomolecules in intact viable cells that can be phenotyped both before and after NMR experiments.

Indexed as

Cell SurvivalCryopreservationHEK293 CellsHumansMagnetic Resonance SpectroscopySingle-Cell Analysis

Identifiers

PMID34724614
PMCPMC8961430
OpenAlexW3211287374

What OpenQuestion holds

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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.