Evidence map›Paper›PMID 16607493›Full record

ArticleJournal of molecular modeling2006

Modeling the human PTC bitter-taste receptor interactions with bitter tastants.

Wely B Floriano, Spencer Hall, Nagarajan Vaidehi, Unkyung Kim, Dennis Drayna, William A Goddard

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of molecular modeling, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

29 citing papers in PubMed, 71 citations in OpenAlex.

  1. Trial
  2. Bitter taste receptors.Chemical senses · 2025
    Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Taste receptors in the upper airway.World journal of otorhinolaryngology - head and neck surgery · 2018
    Review
  11. Article
  12. Article
  13. Review
  14. Taste receptors in innate immunity.Cellular and molecular life sciences : CMLS · 2015
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. 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

6 authors at 4 institutions in 2 countries.

Wely B FlorianoBiological Sciences Department, California State Polytechnic University Pomona, Pomona, CA 91768, USA.
Spencer Hall
Nagarajan Vaidehi
Unkyung Kim
Dennis Drayna
William A Goddard
California Institute of Technology · USCalifornia State Polytechnic University · USKyungpook National University · KRNational Institutes of Health · US

Funding

Linkage/Positional Cloning In Communication DisordersZ01DC000046 · NIDCD · NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS · PI DRAYNA, DENNIS · 1998 to 2008
$3.3M
BRAIN ENDOTHELIAL GLYCOPROTEIN INTERACTIVE WITH E COLIR29AI040567 · NIAID · CHILDREN'S HOSPITAL LOS ANGELES · PI NEMANI, PRASADARAO V · 1997 to 2001
$211k
INHIBITORS FOR E COLI INVASION OF THE BMECR03HD036385 · NICHD · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI GODDARD, WILLIAM A · 1998 to 1999
–
NIAID NIH HHS R29AI40567NICHD NIH HHS HD36385NIGMS NIH HHS R01-GM625523PHS HHS Z01-000046-04
6 · The paper itself

Abstract

We employed the first principles computational method MembStruk and homology modeling techniques to predict the 3D structures of the human phenylthiocarbamide (PTC) taste receptor. This protein is a seven-transmembrane-domain G protein-coupled receptor that exists in two main forms worldwide, designated taster and nontaster, which differ from each other at three amino-acid positions. 3D models were generated with and without structural similarity comparison to bovine rhodopsin. We used computational tools (HierDock and ScanBindSite) to generate models of the receptor bound to PTC ligand to estimate binding sites and binding energies. In these models, PTC binds at a site distant from the variant amino acids, and PTC binding energy was equivalent for both the taster and nontaster forms of the protein. These models suggest that the inability of humans to taste PTC is due to a failure of G protein activation rather than decreased binding affinity of the receptor for PTC. Amino-acid substitutions in the sixth and seventh transmembrane domains of the nontaster form of the protein may produce increased steric hindrance between these two alpha-helices and reduce the motion of the sixth helix required for G protein activation.

Indexed as

Models, MolecularAmino Acid SubstitutionAnimalsCattleGTP-Binding ProteinsHumansLigandsProtein BindingProtein ConformationReceptors, Cell SurfaceReceptors, G-Protein-CoupledRhodopsinStructural Homology, ProteinTasteTaste Receptors, Type 2GTP-Binding ProteinsLigandsReceptors, Cell SurfaceReceptors, G-Protein-CoupledRhodopsinTaste Receptors, Type 2

Identifiers

PMID16607493
OpenAlexW1971560305

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.