Evidence map›Paper›PMID 41081558›Full record

ReviewProtein science : a publication of the Protein Society2025

Constitutive activity of the sweet taste receptor: Heavy water sweetness and beyond.

Annalisa Pastore, Piero Andrea Temussi

Abstract readReview
In one paragraph

Review in Protein science : a publication of the Protein Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Constitutive activity of the sweet taste receptor: Heavy water sweetness and beyond.Protein science : a publication of the Protein Society · 2025
    Review
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

2 authors.

Annalisa PastoreDepartment of Clinical and Basic Science, King's College London, The Wohl Institute, London, UK.ORCID 0000-0002-3047-654X
Piero Andrea TemussiDepratment Of Chemical Sciences, Universita' di Napoli "Federico II", Naples, Italy.ORCID 0000-0001-6032-4291

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The present work proposes an explanation for a recent observation that has conclusively proven that heavy water, that is, water containing the non-radioactive isotope of hydrogen deuterium, is mildly sweet, at variance with the tasteless common water. No firm explanation was proposed for this unexpected behavior. Yet, the subject is far from being an irrelevant curiosity, as the explanation of yet unidentified properties of the sweet receptor can help us to understand the molecular bases of food appreciation that have direct repercussions on pathologies such as diabetes and obesity. Here, a simple but convincing structural explanation of the taste of heavy water is proposed that is based on the influence of heavy water on the conformation of the active form of the receptor. The explanation requires the concept of "constitutive receptor activity", that is, a notion well accepted in many areas of pharmacology but clearly neglected in reference to taste receptors. We discuss how constitutive activity also explains other properties such as the recognition of sweet proteins that are several thousand times sweeter than small carbohydrates.

Indexed as

DeuteriumReceptors, G-Protein-CoupledSweetening AgentsTasteWaterAnimalsHumansDeuteriumReceptors, G-Protein-CoupledSweetening AgentsWaterconstitutive activityisotopessweet proteinssweet taste

Identifiers

PMID41081558
PMCPMC12516913

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.