Evidence map›Paper›PMID 31000595›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Competitive binding predicts nonlinear responses of olfactory receptors to complex mixtures.

Vijay Singh, Nicolle R Murphy, Vijay Balasubramanian, Joel D Mainland

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing 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

37 citing papers in PubMed.

  1. Article
  2. Article
  3. Convergent motifs of early olfactory processing are recapitulated by layer-wise efficient coding.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Recalibrating Olfactory Neuroscience to the Range of Naturally Occurring Odor Concentrations.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Interactions among key residues regulate mammalian odorant receptor trafficking.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2022
    Article
  17. Article
  18. Biological constraints on configural odour mixture perception.The Journal of experimental biology · 2022
    Article
  19. Article
  20. Olfactory Sensing and Navigation in Turbulent Environments.Annual review of condensed matter physics · 2022
    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

4 authors.

Vijay SinghComputational Neuroscience Initiative, University of Pennsylvania, Philadelphia, PA 19104.ORCID 0000-0002-7886-9190
Nicolle R MurphyMonell Chemical Senses Center, Philadelphia, PA 19104.
Vijay BalasubramanianComputational Neuroscience Initiative, University of Pennsylvania, Philadelphia, PA 19104; vijay@physics.upenn.edu.
Joel D MainlandMonell Chemical Senses Center, Philadelphia, PA 19104.

Funding

Molecular BiologyP30DC011735 · NIDCD · MONELL CHEMICAL SENSES CENTER · PI REED, DANIELLE RENEE · 2011 to 2015
$2.5M
Perceptual effects of genetic variation in human odorant receptorsR01DC013339 · NIDCD · MONELL CHEMICAL SENSES CENTER · PI MAINLAND, JOEL D · 2013 to 2017
$1.9M
NIDCD NIH HHS P30 DC011735NIDCD NIH HHS R01 DC013339
6 · The paper itself

Abstract

In color vision, the quantitative rules for mixing lights to make a target color are well understood. By contrast, the rules for mixing odorants to make a target odor remain elusive. A solution to this problem in vision relied on characterizing receptor responses to different wavelengths of light and subsequently relating these responses to perception. In olfaction, experimentally measuring receptor responses to a representative set of complex mixtures is intractable due to the vast number of possibilities. To meet this challenge, we develop a biophysical model that predicts mammalian receptor responses to complex mixtures using responses to single odorants. The dominant nonlinearity in our model is competitive binding (CB): Only one odorant molecule can attach to a receptor binding site at a time. This simple framework predicts receptor responses to mixtures of up to 12 monomolecular odorants to within 15% of experimental observations and provides a powerful method for leveraging limited experimental data. Simple extensions of our model describe phenomena such as synergy, overshadowing, and inhibition. We demonstrate that the presence of such interactions can be identified via systematic deviations from the competitive-binding model.

Indexed as

Models, BiologicalOdorantsCell LineHumansReceptors, OdorantReceptors, Odorantodor mixturesolfactionolfactory receptor neuronsreceptor biophysicssensory coding

Identifiers

PMID31000595
PMCPMC6511041

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.