Component
Inositol (stereoisomer family)
Inositol is a family of ring-shaped sugar alcohols. The body can make myo-inositol, which supplies membrane lipids and signaling molecules that connect calcium release, ion channels, phosphate handling and protein anchoring. Free inositol, its stereoisomers, and phosphorylated derivatives have different actions; clinical effects depend on the form, tissue and study context.
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.
Where it participates (unsigned role)
Human placental phosphatidylinositol synthase used myo-inositol and CDP-diacylglycerol to form phosphatidylinositol.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/inositol-research/8110188.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "c05bb5272b443bde4f99d4af375d31988a4812150450d6c4462059a59aa8a09e", "start_char": 0, "end_char": 940, "text_sha256": "c05bb5272b443bde4f99d4af375d31988a4812150450d6c4462059a59aa8a09e"}
- experimental_model
- Purification and kinetics of placental PI synthase
- exposure
- Substrate and ion titrations
- limitations
- Assay optima and inhibitory concentrations are not dietary advice or proof of in vivo nutrient competition.
- nutrient_topic
- Inositol research collection; topical membership is not evidence of a direct dietary effect. · Inositol (stereoisomer family)
- organism
- Homo sapiens
- plain_language
- This step attaches the inositol head group to a membrane lipid.
- primary_references
- [ino-p8110188] Purification and characterization of phosphatidylinositol synthase from human placenta. (1994). https://pubmed.ncbi.nlm.nih.gov/8110188/ DOI: 10.1042/bj2970517
- tissue_or_cell_type
- Placental microsomal enzyme
Inositol: synthesis, signaling, mineral interactions and conditional deficiency (2026-09-17) · lines 496–507
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Purification and kinetics of placental PI synthase · source_derived_draft · unverified_draft
### ino-cdipt-synthesis Human placental phosphatidylinositol synthase used myo-inositol and CDP-diacylglycerol to form phosphatidylinositol. Condition category: normal nutrient_topic: Inositol research collection; topical membership is not evidence of a direct dietary effect. plain_language: This step attaches the inositol head group to a membrane lipid. organism: Homo sapiens tissue_or_cell_type: Placental microsomal enzyme experimental_model: Purification and kinetics of placental PI synthase limitations: Assay optima and inhibitory concentrations are not dietary advice or proof of in vivo nutrient competition. exposure: Substrate and ion titrations evidence_span: {"source_cache": "artifacts/inositol-research/8110188.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "c05bb5272b443bde4f99d4af375d31988a4812150450d6c4462059a59aa8a09e", "start_char": 0, "end_char": 940, "text_sha256": "c05bb5272b443bde4f99d4af375d31988a4812150450d6c4462059a59aa8a09e"} [ino-p8110188] Purification and characterization of phosphatidylinositol synthase from human placenta. (1994). https://pubmed.ncbi.nlm.nih.gov/8110188/ DOI: 10.1042/bj2970517
Complete structured claim and evidenceRecombinant human ISYNA1 converted D-glucose 6-phosphate to 1D-myo-inositol 3-phosphate, an entry step in de novo inositol synthesis.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/inositol-research/15024000.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "5ab3a8eda77989c3e4a681b4a971fb7e969c285d3e5c8e41bc31713a7f88c9ac", "start_char": 0, "end_char": 1427, "text_sha256": "5ab3a8eda77989c3e4a681b4a971fb7e969c285d3e5c8e41bc31713a7f88c9ac"}
- experimental_model
- Recombinant human enzyme and complementation of yeast ino1 deletion
- exposure
- Substrate, NAD+, cation and valproate experiments
- limitations
- Purified-enzyme and yeast results do not establish supplement effects or a human dietary deficiency threshold.
- nutrient_topic
- Inositol research collection; topical membership is not evidence of a direct dietary effect. · Inositol (stereoisomer family)
- organism
- Human protein expressed in bacteria and yeast
- plain_language
- Cells have a route to build the inositol ring from a glucose-derived molecule.
- primary_references
- [ino-p15024000] Human 1-D-myo-inositol-3-phosphate synthase is functional in yeast. (2004). https://pubmed.ncbi.nlm.nih.gov/15024000/ DOI: 10.1074/jbc.m312078200
- tissue_or_cell_type
- Purified enzyme; yeast cultures
Inositol: synthesis, signaling, mineral interactions and conditional deficiency (2026-09-17) · lines 171–182
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Recombinant human enzyme and complementation of yeast ino1 deletion · source_derived_draft · unverified_draft
### ino-isyna-synthesis Recombinant human ISYNA1 converted D-glucose 6-phosphate to 1D-myo-inositol 3-phosphate, an entry step in de novo inositol synthesis. Condition category: normal nutrient_topic: Inositol research collection; topical membership is not evidence of a direct dietary effect. plain_language: Cells have a route to build the inositol ring from a glucose-derived molecule. organism: Human protein expressed in bacteria and yeast tissue_or_cell_type: Purified enzyme; yeast cultures experimental_model: Recombinant human enzyme and complementation of yeast ino1 deletion limitations: Purified-enzyme and yeast results do not establish supplement effects or a human dietary deficiency threshold. exposure: Substrate, NAD+, cation and valproate experiments evidence_span: {"source_cache": "artifacts/inositol-research/15024000.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "5ab3a8eda77989c3e4a681b4a971fb7e969c285d3e5c8e41bc31713a7f88c9ac", "start_char": 0, "end_char": 1427, "text_sha256": "5ab3a8eda77989c3e4a681b4a971fb7e969c285d3e5c8e41bc31713a7f88c9ac"} [ino-p15024000] Human 1-D-myo-inositol-3-phosphate synthase is functional in yeast. (2004). https://pubmed.ncbi.nlm.nih.gov/15024000/ DOI: 10.1074/jbc.m312078200
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.