Evidence map›Paper›PMID 26049447›Full record

ArticleThe Journal of chemical physics2015

Line shape analysis of two-dimensional infrared spectra.

Qi Guo, Philip Pagano, Yun-Liang Li, Amnon Kohen, Christopher M Cheatum

Abstract read
In one paragraph

Article in The Journal of chemical physics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Review
  2. Directional information flow as a tool for analyzing protein allostery.bioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Elucidating the role of water in collagen self-assembly by isotopically modulating collagen hydration.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Ultrafast Dynamics at Lipid-Water Interfaces.Accounts of chemical research · 2020
    Article
  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

5 authors.

Qi GuoDepartment of Chemistry, University of Iowa, Iowa City, Iowa 52242, USA and Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, USA.
Philip PaganoDepartment of Chemistry, University of Iowa, Iowa City, Iowa 52242, USA and Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, USA.
Yun-Liang LiDepartment of Chemistry, University of Iowa, Iowa City, Iowa 52242, USA and Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, USA.
Amnon KohenDepartment of Chemistry, University of Iowa, Iowa City, Iowa 52242, USA and Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, USA.
Christopher M CheatumDepartment of Chemistry, University of Iowa, Iowa City, Iowa 52242, USA and Optical Science and Technology Center, University of Iowa, Iowa City, Iowa 52242, USA.

Funding

The Role of fs-ps Dynamics in Enzymatic H-TransferR01GM079368 · NIGMS · UNIVERSITY OF IOWA · PI CHEATUM, CHRISTOPHER M · 2010 to 2014
$1.4M
NIGMS NIH HHS R01 GM079368NIGMS NIH HHS R01 GM79368
6 · The paper itself

Abstract

Ultrafast two-dimensional infrared (2D IR) spectroscopy probes femtosecond to picosecond time scale dynamics ranging from solvation to protein motions. The frequency-frequency correlation function (FFCF) is the quantitative measure of the spectral diffusion that reports those dynamics and, within certain approximations, can be extracted directly from 2D IR line shapes. A variety of methods have been developed to extract the FFCF from 2D IR spectra, which, in principle, should give the same FFCF parameters, but the complexity of real experimental systems will affect the results of these analyses differently. Here, we compare five common analysis methods using both simulated and experimental 2D IR spectra to understand the effects of apodization, anharmonicity, phasing errors, and finite signal-to-noise ratios on the results of each of these analyses. Our results show that although all of the methods can, in principle, yield the FFCF under idealized circumstances, under more realistic experimental conditions they behave quite differently, and we find that the centerline slope analysis yields the best compromise between the effects we test and is most robust to the distortions that they cause.

Indexed as

AzidesDeuterium OxideProteinsSpectrophotometry, InfraredAzidesDeuterium OxideProteins

Identifiers

PMID26049447
PMCPMC4409623

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.