Evidence map›Paper›PMID 25494779›Full record

ArticleThe Journal of chemical physics2014

Accurate small and wide angle x-ray scattering profiles from atomic models of proteins and nucleic acids.

Hung T Nguyen, Suzette A Pabit, Steve P Meisburger, Lois Pollack, David A Case

Abstract read
In one paragraph

Article in The Journal of chemical physics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

24 citing papers in PubMed, 41 citations in OpenAlex.

  1. Fast calculation of small-angle scattering profiles of dense protein solutions modeled at the all-atom level.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Article
  3. Article
  4. Article
  5. An overview of structural approaches to study therapeutic RNAs.Frontiers in molecular biosciences · 2022
    Review
  6. Article
  7. Article
  8. Article
  9. Theory and simulations for RNA folding in mixtures of monovalent and divalent cations.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Counting the ions surrounding nucleic acids.Nucleic acids research · 2017
    Article
  17. Article
  18. Article
  19. Review
  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 at 2 institutions in 1 country.

Hung T NguyenBioMaPS Institute for Quantitative Biology, Rutgers University, Piscataway, New Jersey 08854, USA.
Suzette A PabitSchool of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.
Steve P MeisburgerSchool of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.
Lois PollackSchool of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.
David A CaseBioMaPS Institute for Quantitative Biology, Rutgers University, Piscataway, New Jersey 08854, USA.
Cornell University · USRutgers, The State University of New Jersey · US

Funding

The Center for HIV RNA Studies (CRNA)P50GM103297 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SALEMI, MARCO · 2012 to 2016
$21.7M
Overall (pp. 40-62)P41GM103485 · NIGMS · CORNELL UNIVERSITY · PI CERIONE, RICHARD A. · 2012 to 2018
$15.5M
TRAINING IN MOLECULAR PHYSICS OF BIOLOGICAL SYSTEMST32GM008267 · NIGMS · CORNELL UNIVERSITY ITHACA · PI WANG, MICHELLE D. · 1988 to 2021
$9.6M
RNA folding: from global structure to atomic detailR01GM085062 · NIGMS · CORNELL UNIVERSITY · PI ELBER, RON, POLLACK, LOIS · 2009 to 2017
$2.7M
NIGMS NIH HHS GM085062NIGMS NIH HHS GM103297NIGMS NIH HHS GM-103485NIGMS NIH HHS P41 GM103485NIGMS NIH HHS P50 GM103297NIGMS NIH HHS R01 GM085062NIGMS NIH HHS T32 GM008267
6 · The paper itself

Abstract

A new method is introduced to compute X-ray solution scattering profiles from atomic models of macromolecules. The three-dimensional version of the Reference Interaction Site Model (RISM) from liquid-state statistical mechanics is employed to compute the solvent distribution around the solute, including both water and ions. X-ray scattering profiles are computed from this distribution together with the solute geometry. We describe an efficient procedure for performing this calculation employing a Lebedev grid for the angular averaging. The intensity profiles (which involve no adjustable parameters) match experiment and molecular dynamics simulations up to wide angle for two proteins (lysozyme and myoglobin) in water, as well as the small-angle profiles for a dozen biomolecules taken from the BioIsis.net database. The RISM model is especially well-suited for studies of nucleic acids in salt solution. Use of fiber-diffraction models for the structure of duplex DNA in solution yields close agreement with the observed scattering profiles in both the small and wide angle scattering (SAXS and WAXS) regimes. In addition, computed profiles of anomalous SAXS signals (for Rb(+) and Sr(2+)) emphasize the ionic contribution to scattering and are in reasonable agreement with experiment. In cases where an absolute calibration of the experimental data at q = 0 is available, one can extract a count of the excess number of waters and ions; computed values depend on the closure that is assumed in the solution of the Ornstein-Zernike equations, with results from the Kovalenko-Hirata closure being closest to experiment for the cases studied here.

Indexed as

Molecular Dynamics SimulationMuramidaseMyoglobinNucleic AcidsProteinsScattering, Small AngleWaterX-Ray DiffractionMuramidaseMyoglobinNucleic AcidsProteinsWater

Identifiers

PMID25494779
PMCPMC4214430
OpenAlexW2023232035

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.