Component
Rat Slc2a13 (HMIT)
Rat Slc2a13 (HMIT). Species, exposure and limitations are retained in each linked claim.
2 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 it acts on
HMIT expressed in Xenopus oocytes mediated electrogenic proton-coupled myo-inositol uptake that increased as pH fell, with maximal tested activity near pH 5.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/inositol-research/11500374.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "fb9efd53bbc0fae1bf1ada1525cdb7d10a4e700d3309bfba4e3a598c4a9c74b9", "start_char": 0, "end_char": 1270, "text_sha256": "fb9efd53bbc0fae1bf1ada1525cdb7d10a4e700d3309bfba4e3a598c4a9c74b9"}
- experimental_model
- Transporter expression and electrophysiology
- exposure
- Extracellular pH manipulation
- limitations
- Transport capacity after heterologous expression does not establish a neuronal plasma-membrane role in vivo.
- nutrient_topic
- Inositol research collection; topical membership is not evidence of a direct dietary effect. · Inositol (stereoisomer family)
- organism
- Rat brain transporter studied in Xenopus oocytes
- plain_language
- A different transporter can use a proton gradient, particularly in acidic experimental conditions.
- primary_references
- [ino-p11500374] Identification of a mammalian H(+)-myo-inositol symporter expressed predominantly in the brain. (2001). https://pubmed.ncbi.nlm.nih.gov/11500374/ DOI: 10.1093/emboj/20.16.4467
- tissue_or_cell_type
- Heterologous membranes and rat brain
- transport_effect
- raises Electrogenic proton-coupled myo-inositol uptake rising as pH fell.
- transport_pool
- the expressing cell Electrogenic proton-coupled myo-inositol uptake rising as pH fell.
Inositol: synthesis, signaling, mineral interactions and conditional deficiency (2026-09-17) · lines 366–377
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Transporter expression and electrophysiology · source_derived_draft · unverified_draft
### ino-hmit-acid HMIT expressed in Xenopus oocytes mediated electrogenic proton-coupled myo-inositol uptake that increased as pH fell, with maximal tested activity near pH 5. Condition category: normal nutrient_topic: Inositol research collection; topical membership is not evidence of a direct dietary effect. plain_language: A different transporter can use a proton gradient, particularly in acidic experimental conditions. organism: Rat brain transporter studied in Xenopus oocytes tissue_or_cell_type: Heterologous membranes and rat brain experimental_model: Transporter expression and electrophysiology limitations: Transport capacity after heterologous expression does not establish a neuronal plasma-membrane role in vivo. exposure: Extracellular pH manipulation evidence_span: {"source_cache": "artifacts/inositol-research/11500374.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "fb9efd53bbc0fae1bf1ada1525cdb7d10a4e700d3309bfba4e3a598c4a9c74b9", "start_char": 0, "end_char": 1270, "text_sha256": "fb9efd53bbc0fae1bf1ada1525cdb7d10a4e700d3309bfba4e3a598c4a9c74b9"} [ino-p11500374] Identification of a mammalian H(+)-myo-inositol symporter expressed predominantly in the brain. (2001). https://pubmed.ncbi.nlm.nih.gov/11500374/ DOI: 10.1093/emboj/20.16.4467
Complete structured claim and evidenceHMIT localized to the Golgi apparatus in primary cultured neurons; HMIT-mediated currents were not detected in rat neurons or brain slices.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/inositol-research/19607714.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "8b8bd010f44dd8b055efc345c57791e88547114b0a2f27d782183674fc53f984", "start_char": 0, "end_char": 1332, "text_sha256": "8b8bd010f44dd8b055efc345c57791e88547114b0a2f27d782183674fc53f984"}
- experimental_model
- Immunolocalization, neuronal electrophysiology and knockout
- exposure
- Native localization and HMIT-null comparisons
- limitations
- Native localization qualifies earlier heterologous uptake findings; it is an explained context difference, not evidence that one experiment is false.
- nutrient_topic
- Inositol research collection; topical membership is not evidence of a direct dietary effect. · Inositol (stereoisomer family)
- organism
- Rat and human brain; mouse knockout
- plain_language
- A transporter that works at an artificial cell surface may normally function inside the cell.
- primary_references
- [ino-p19607714] Evaluation of expression and function of the H+/myo-inositol transporter HMIT. (2009). https://pubmed.ncbi.nlm.nih.gov/19607714/ DOI: 10.1186/1471-2121-10-54
- tissue_or_cell_type
- Brain neurons and cultured neurons
Inositol: synthesis, signaling, mineral interactions and conditional deficiency (2026-09-17) · lines 379–390
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Immunolocalization, neuronal electrophysiology and knockout · source_derived_draft · unverified_draft
### ino-hmit-golgi HMIT localized to the Golgi apparatus in primary cultured neurons; HMIT-mediated currents were not detected in rat neurons or brain slices. Condition category: normal nutrient_topic: Inositol research collection; topical membership is not evidence of a direct dietary effect. plain_language: A transporter that works at an artificial cell surface may normally function inside the cell. organism: Rat and human brain; mouse knockout tissue_or_cell_type: Brain neurons and cultured neurons experimental_model: Immunolocalization, neuronal electrophysiology and knockout limitations: Native localization qualifies earlier heterologous uptake findings; it is an explained context difference, not evidence that one experiment is false. exposure: Native localization and HMIT-null comparisons evidence_span: {"source_cache": "artifacts/inositol-research/19607714.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "8b8bd010f44dd8b055efc345c57791e88547114b0a2f27d782183674fc53f984", "start_char": 0, "end_char": 1332, "text_sha256": "8b8bd010f44dd8b055efc345c57791e88547114b0a2f27d782183674fc53f984"} [ino-p19607714] Evaluation of expression and function of the H+/myo-inositol transporter HMIT. (2009). https://pubmed.ncbi.nlm.nih.gov/19607714/ DOI: 10.1186/1471-2121-10-54
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.