Component
Mouse residual umami response without T1R3
Context-specific entity; species, compartment and exposure are stated on each claim.
1 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What acts on it
Tas1r3-null mice retained diminished behavioral and nerve responses to umami compounds.
Experimental context and source evidence
- availability_state
- machinery_impairment Imported condition classification; unverified.
- evidence_access
- Primary abstract
- experimental_model
- Mouse receptor knockout.
- limitations
- This result does not identify one exclusive alternative receptor or negate human T1R1/T1R3 activation.
- nutrient_topic
- Monosodium Glutamate (MSG) collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · Monosodium L-glutamate
- plain_language
- The main receptor is not necessarily the only detectable route.
- primary_references
- Detection of sweet and umami taste in the absence of taste receptor T1r3. · 2003 · https://pubmed.ncbi.nlm.nih.gov/12869700/ · DOI 10.1126/science.1087155
- trigger_kind
- machinery_impairment Imported condition classification; unverified.
Monosodium Glutamate (MSG): taste, gut sensing, exposure and cross-nutrient mechanisms (2026-09-20) · lines 138–144
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Mouse receptor knockout. · source_derived_draft · unverified_draft
## monosodium-glutamate-residual-umami The main receptor is not necessarily the only detectable route. Tas1r3-null mice retained diminished behavioral and nerve responses to umami compounds. Model: Mouse receptor knockout. Limitations: This result does not identify one exclusive alternative receptor or negate human T1R1/T1R3 activation. Evidence access: Primary abstract Detection of sweet and umami taste in the absence of taste receptor T1r3. · 2003 · https://pubmed.ncbi.nlm.nih.gov/12869700/ · DOI 10.1126/science.1087155
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.