Evidence map›Paper›PMID 19571230›Full record

ArticleThe American journal of clinical nutrition2009

Taste receptors for umami: the case for multiple receptors.

Nirupa Chaudhari, Elizabeth Pereira, Stephen D Roper

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of clinical nutrition, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
16.0field-weighted citation impact, top 1% 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

66 citing papers in PubMed, 209 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Bitter taste receptors as sensors of gut luminal contents.Nature reviews. Gastroenterology & hepatology · 2025
    Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Isolation and Identification of Novel Taste-ModulatingJournal of agricultural and food chemistry · 2024
    Article
  12. Review
  13. Article
  14. Heterodimerization of Chemoreceptors TAS1R3 and mGluInternational journal of molecular sciences · 2023
    Article
  15. Review
  16. Article
  17. Review
  18. Pharmacology of the Umami Taste Receptor.Handbook of experimental pharmacology · 2022
    Article
  19. Article
  20. Review

6 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Nirupa ChaudhariDepartment of Physiology and Biophysics, University of Miami, FL 33136, USA. nchaudhari@med.miami
Elizabeth Pereira
Stephen D Roper
University of Miami · US

Funding

SIGNALING IN TASTE CELLSR01DC006308 · NIDCD · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI CHAUDHARI, NIRUPA · 2005 to 2020
$4.9M
CHEMOSENSORY TRANSDUCTION IN TASTE CELLSR01DC000374 · NIDCD · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI ROPER, STEPHEN D. · 1989 to 2012
$4.2M
PHYSIOLOGY OF GLUTAMATE RECEPTORS IN TASTE BUDSP01DC003013 · NIDCD · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI CHAUDHARI, NIRUPA · 1995 to 2002
$2.1M
NIDCD NIH HHS P01DC03013NIDCD NIH HHS R01DC000374NIDCD NIH HHS R01 DC006308NIDCD NIH HHS R01DC06308
6 · The paper itself

Abstract

Umami taste is elicited by many small molecules, including amino acids (glutamate and aspartate) and nucleotides (monophosphates of inosinate or guanylate, inosine 5'-monophosphate and guanosine-5'-monophosphate). Mammalian taste buds respond to these diverse compounds via membrane receptors that bind the umami tastants. Over the past 15 y, several receptors have been proposed to underlie umami detection in taste buds. These receptors include 2 glutamate-selective G protein-coupled receptors, mGluR4 and mGluR1, and the taste bud-expressed heterodimer T1R1+T1R3. Each of these receptors is expressed in small numbers of cells in anterior and posterior taste buds. The mGluRs are activated by glutamate and certain analogs but are not reported to be sensitive to nucleotides. In contrast, T1R1+T1R3 is activated by a broad range of amino acids and displays a strongly potentiated response in the presence of nucleotides. Mice in which the Grm4 gene is knocked out show a greatly enhanced preference for umami tastants. Loss of the Tas1r1 or Tas1R3 genes is reported to depress but not eliminate neural and behavioral responses to umami. When intact mammalian taste buds are apically stimulated with umami tastants, their functional responses to umami tastants do not fully resemble the responses of a single proposed umami receptor. Furthermore, the responses to umami tastants persist in the taste cells of T1R3-knockout mice. Thus, umami taste detection may involve multiple receptors expressed in different subsets of taste cells. This receptor diversity may underlie the complex perception of umami, with different mixtures of amino acids, peptides, and nucleotides yielding subtly distinct taste qualities.

Indexed as

Amino AcidsAnimalsMiceMice, KnockoutRatsReceptors, G-Protein-CoupledReceptors, Metabotropic GlutamateRNA, MessengerTasteTaste BudsAmino Acidsmetabotropic glutamate receptor 4metabotropic glutamate receptor type 1Receptors, G-Protein-CoupledReceptors, Metabotropic GlutamateRNA, Messengertaste receptors, type 1

Identifiers

PMID19571230
PMCPMC3136002
OpenAlexW2000296915

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.