Component
ROMK endocytosis
Removal of ROMK channels from the plasma membrane into intracellular vesicles.
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
ARH bound the ROMK internalization motif and promoted endocytosis in COS-7 cells; Arh deletion altered dietary regulation of renal ROMK.
Experimental context and source evidence
- evidence_location
- Abstract; binding motif experiments and renal Arh-null comparison.
- experimental_model
- Binding, knockdown and Arh-null dietary experiments
- limitations
- Cell uptake mechanism and mouse dietary phenotype are complementary experiments.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Chlorocebus-derived COS-7 cells; Mus musculus
- plain_language
- An adaptor helps pull ROMK from the membrane and contributes to potassium-dependent channel adjustment.
- primary_references
- [fang-2009-arh-romk] The ARH adaptor protein regulates endocytosis of the ROMK potassium secretory channel in mouse kidney (2009). https://pmc.ncbi.nlm.nih.gov/articles/PMC2769171/ DOI: 10.1172/JCI37950
- tissue_or_cell_type
- Cell system and distal nephron
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 332–342
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Binding, knockdown and Arh-null dietary experiments · source_derived_draft · unverified_draft
### renal-arh-targets-romk-endocytosis ARH bound the ROMK internalization motif and promoted endocytosis in COS-7 cells; Arh deletion altered dietary regulation of renal ROMK. Condition category: normal nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: An adaptor helps pull ROMK from the membrane and contributes to potassium-dependent channel adjustment. organism: Chlorocebus-derived COS-7 cells; Mus musculus tissue_or_cell_type: Cell system and distal nephron experimental_model: Binding, knockdown and Arh-null dietary experiments limitations: Cell uptake mechanism and mouse dietary phenotype are complementary experiments. evidence_location: Abstract; binding motif experiments and renal Arh-null comparison. [fang-2009-arh-romk] The ARH adaptor protein regulates endocytosis of the ROMK potassium secretory channel in mouse kidney (2009). https://pmc.ncbi.nlm.nih.gov/articles/PMC2769171/ DOI: 10.1172/JCI37950
Complete structured claim and evidenceAfter 48 hours of dietary K deficiency, rat CCD ROMK shifted from apical membrane toward endosomal/lysosomal locations.
Experimental context and source evidence
- availability_state
- nutrient_deficiency Imported condition classification; unverified.
- evidence_location
- Abstract; early/late endosomal marker colocalization.
- experimental_model
- Dietary restriction; confocal localization
- limitations
- Localization supports internalization/degradation; microscopy does not directly measure secretion.
- nutrient_topic
- Potassium research collection; topical membership is not evidence of a direct dietary effect. · Potassium
- organism
- Rattus norvegicus
- plain_language
- The kidney removes potassium exit channels from the surface when potassium is scarce.
- primary_references
- [chu-2003-romk-endocytosis] Dietary potassium restriction stimulates endocytosis of ROMK channel in rat cortical collecting duct (2003). https://journals.physiology.org/doi/10.1152/ajprenal.00150.2003 DOI: 10.1152/ajprenal.00150.2003
- tissue_or_cell_type
- Cortical collecting duct
- trigger_kind
- nutrient_deficiency Imported condition classification; unverified.
Potassium: cross-nutrient mechanisms and deficiency (2026-09-17) · lines 320–330
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Dietary restriction; confocal localization · source_derived_draft · unverified_draft
### renal-low-k-romk-internalization After 48 hours of dietary K deficiency, rat CCD ROMK shifted from apical membrane toward endosomal/lysosomal locations. Condition category: nutrient_deficiency nutrient_topic: Potassium research collection; topical membership is not evidence of a direct dietary effect. plain_language: The kidney removes potassium exit channels from the surface when potassium is scarce. organism: Rattus norvegicus tissue_or_cell_type: Cortical collecting duct experimental_model: Dietary restriction; confocal localization limitations: Localization supports internalization/degradation; microscopy does not directly measure secretion. evidence_location: Abstract; early/late endosomal marker colocalization. [chu-2003-romk-endocytosis] Dietary potassium restriction stimulates endocytosis of ROMK channel in rat cortical collecting duct (2003). https://journals.physiology.org/doi/10.1152/ajprenal.00150.2003 DOI: 10.1152/ajprenal.00150.2003
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.