Evidence map›Paper›PMID 21420976›Full record

ArticleJournal of molecular biology2011

WAXS studies of the structural diversity of hemoglobin in solution.

L Makowski, J Bardhan, D Gore, J Lal, S Mandava, S Park, D J Rodi, N T Ho, C Ho, R F Fischetti

Abstract read
In one paragraph

Article in Journal of molecular biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

19 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Hemoglobin: Structure, Function and Allostery.Sub-cellular biochemistry · 2020
    Review
  6. Article
  7. Article
  8. Energetics underlying hemin extraction from human hemoglobin byThe Journal of biological chemistry · 2018
    Article
  9. Modulation of hemoglobin dynamics by an allosteric effector.Protein science : a publication of the Protein Society · 2017
    Article
  10. Article
  11. Emerging applications of small angle solution scattering in structural biology.Protein science : a publication of the Protein Society · 2015
    Review
  12. New look at hemoglobin allostery.Chemical reviews · 2015
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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

10 authors at 4 institutions in 1 country.

L MakowskiDepartment of Electrical and Computer Engineering, Northeastern University, 360 Huntington Avenue, Boston, MA 02115, USA. makowski@ece.neu.edu
J Bardhan
D Gore
J Lal
S Mandava
S Park
D J Rodi
N T Ho
C Ho
R F Fischetti
Argonne National Laboratory · USCarnegie Mellon University · USIllinois Institute of Technology · USNortheastern University · US

Funding

X-RAY STUDIES OF NEUROFIBRILLARY TANGLES IN ALZHEIMER'S DISEASE BRAIN TISSUEP41RR008630 · NCRR · ILLINOIS INSTITUTE OF TECHNOLOGY · PI IRVING, THOMAS C · 2001 to 2011
$14.4M
BIOPHYSICAL & MOLECULAR BIOLOGICAL STUDIES OF HEMOGLOBINR01GM084614 · NIGMS · CARNEGIE-MELLON UNIVERSITY · PI HO, CHIEN · 2007 to 2013
$2.1M
MADMAX: Precise Measurement of Conformational Changes in ProteinsR01GM085648 · NIGMS · UNIVERSITY OF CHICAGO · PI MAKOWSKI, LEE · 2008 to 2011
$1.2M
NCRR NIH HHS P41 RR008630NCRR NIH HHS RR-08630NIGMS NIH HHS R01 GM084614NIGMS NIH HHS R01GM-084614NIGMS NIH HHS R01 GM085648NIGMS NIH HHS R01GM-085648
6 · The paper itself

Abstract

Specific ligation states of hemoglobin are, when crystallized, capable of taking on multiple quaternary structures. The relationship between these structures, captured in crystal lattices, and hemoglobin structure in solution remains uncertain. Wide-angle X-ray solution scattering (WAXS) is a sensitive probe of protein structure in solution that can distinguish among similar structures and has the potential to contribute to these issues. We used WAXS to assess the relationships among the structures of human and bovine hemoglobins in different liganded forms in solution. WAXS data readily distinguished among the various forms of hemoglobins. WAXS patterns confirm some of the relationships among hemoglobin structures that have been defined through crystallography and NMR and extend others. For instance, methemoglobin A in solution is, as expected, nearly indistinguishable from HbCO A. Interestingly, for bovine hemoglobin, the differences between deoxy-Hb, methemoglobin and HbCO are smaller than the corresponding differences in human hemoglobin. WAXS data were also used to assess the spatial extent of structural fluctuations of various hemoglobins in solution. Dynamics has been implicated in allosteric control of hemoglobin, and increased dynamics has been associated with lowered oxygen affinity. Consistent with that notion, WAXS patterns indicate that deoxy-Hb A exhibits substantially larger structural fluctuations than HbCO A. Comparisons between the observed WAXS patterns and those predicted on the basis of atomic coordinate sets suggest that the structures of Hb in different liganded forms exhibit clear differences from known crystal structures.

Indexed as

Scattering, Small AngleAllosteric RegulationAnimalsCarboxyhemoglobinCattleCrystallography, X-RayHumansMethemoglobinModels, MolecularSolutionsX-Ray DiffractionCarboxyhemoglobinMethemoglobinSolutions

Identifiers

PMID21420976
PMCPMC3081904
OpenAlexW2054936279

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.