Component
Sodium-pump-mediated sodium efflux
Outward sodium transport attributable to the ouabain-sensitive pump.
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 acts on it
In Mg-loaded human red-cell ghosts, ouabain-sensitive hydrolysis of one ATP accompanied loss of about three sodium ions.
Experimental context and source evidence
- cross_nutrient
- Magnesium-dependent ATP chemistry is coupled to sodium and potassium handling by the pump; serum magnesium is not the enzyme-site concentration.
- experimental_model
- Human red cells and resealed ghosts; ATP/Mg loading, ouabain, sodium-24, potassium-42 and gamma-phosphorus-32 ATP.
- limitations
- Measured stoichiometry applies to specified ionic conditions; no Mg titration was performed.
- nutrient_topic
- Magnesium research collection; topical membership is not evidence of a direct dietary effect. · Magnesium
- organism
- Homo sapiens
- plain_language
- ATP turnover was directly linked to outward sodium pumping in a magnesium-containing preparation.
- primary_references
- [garrahan-1967-nka] The stoicheiometry of the sodium pump (1967). https://doi.org/10.1113/jphysiol.1967.sp008297 DOI: 10.1113/jphysiol.1967.sp008297
- tissue_or_cell_type
- Resealed erythrocyte ghosts
- transport_direction
- Sodium: intracellular ghost compartment to external medium.
Magnesium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 819–830
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Human red cells and resealed ghosts; ATP/Mg loading, ouabain, sodium-24, potassium-42 and gamma-phosphorus-32 ATP. · source_derived_draft · unverified_draft
### mg-nka-isotope-atp-sodium-coupling In Mg-loaded human red-cell ghosts, ouabain-sensitive hydrolysis of one ATP accompanied loss of about three sodium ions. Condition category: normal nutrient_topic: Magnesium research collection; topical membership is not evidence of a direct dietary effect. plain_language: ATP turnover was directly linked to outward sodium pumping in a magnesium-containing preparation. organism: Homo sapiens tissue_or_cell_type: Resealed erythrocyte ghosts experimental_model: Human red cells and resealed ghosts; ATP/Mg loading, ouabain, sodium-24, potassium-42 and gamma-phosphorus-32 ATP. limitations: Measured stoichiometry applies to specified ionic conditions; no Mg titration was performed. cross_nutrient: Magnesium-dependent ATP chemistry is coupled to sodium and potassium handling by the pump; serum magnesium is not the enzyme-site concentration. transport_direction: Sodium: intracellular ghost compartment to external medium. [garrahan-1967-nka] The stoicheiometry of the sodium pump (1967). https://doi.org/10.1113/jphysiol.1967.sp008297 DOI: 10.1113/jphysiol.1967.sp008297
Complete structured claim and evidenceOuabain-sensitive extrusion was approximately three sodium ions per ATP hydrolyzed in resealed erythrocyte ghosts.
Experimental context and source evidence
- cross_nutrient
- Sodium export couples to potassium-supported pump cycling and magnesium-dependent energy use.
- experimental_model
- Radiotracer sodium and ATP-hydrolysis assay.
- limitations
- This measurement does not itself establish an exact two-potassium ratio.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Human
- plain_language
- ATP consumption pays for sodium extrusion while potassium is available externally.
- primary_references
- [garrahan-1967-pump] The stoicheiometry of the sodium pump (1967). https://pmc.ncbi.nlm.nih.gov/articles/PMC1365482/ DOI: 10.1113/jphysiol.1967.sp008297
- tissue_or_cell_type
- Erythrocyte membrane
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 587–597
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Radiotracer sodium and ATP-hydrolysis assay. · source_derived_draft · unverified_draft
### k-pump-sodium-atp-coupling Ouabain-sensitive extrusion was approximately three sodium ions per ATP hydrolyzed in resealed erythrocyte ghosts. Condition category: normal nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: ATP consumption pays for sodium extrusion while potassium is available externally. organism: Human tissue_or_cell_type: Erythrocyte membrane experimental_model: Radiotracer sodium and ATP-hydrolysis assay. limitations: This measurement does not itself establish an exact two-potassium ratio. cross_nutrient: Sodium export couples to potassium-supported pump cycling and magnesium-dependent energy use. [garrahan-1967-pump] The stoicheiometry of the sodium pump (1967). https://pmc.ncbi.nlm.nih.gov/articles/PMC1365482/ DOI: 10.1113/jphysiol.1967.sp008297
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.