Component
Human ASS1 magnesium-ATP binding
Human ASS1 magnesium-ATP binding. Species, exposure and limitations are retained in each linked 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
Mg-ATP almost completely protected human ASS1 against alpha-dicarbonyl inactivation, implicating arginine residues in its binding site.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/citrulline-research/2788888.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "29b1553359d37a53c529b8a2b53ba646cca6b4b401ba7a9722e0e1f15510e676", "start_char": 0, "end_char": 1043, "text_sha256": "29b1553359d37a53c529b8a2b53ba646cca6b4b401ba7a9722e0e1f15510e676"}
- experimental_model
- Chemical modification and substrate protection of enzyme
- exposure
- Alpha-dicarbonyl modification with Mg-ATP protection
- limitations
- Protection assay identifies binding requirements; it is not a magnesium supplementation or depletion study.
- nutrient_topic
- Citrulline research collection; topical membership is not evidence of a direct dietary effect. · L-Citrulline
- organism
- Human ASS1
- plain_language
- The active energy substrate is linked to magnesium, but more magnesium is not automatically rate-limiting.
- primary_references
- [citrulline-p2788888] Identification of essential arginine residue(s) for Mg-ATP binding of human argininosuccinate synthetase. (1989). https://pubmed.ncbi.nlm.nih.gov/2788888/
- tissue_or_cell_type
- ATP-binding region
Citrulline: arginine recycling, nitrogen disposal and nutrient connections (2026-09-17) · lines 164–175
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Chemical modification and substrate protection of enzyme · source_derived_draft · unverified_draft
### citrulline-ass1-mg-atp Mg-ATP almost completely protected human ASS1 against alpha-dicarbonyl inactivation, implicating arginine residues in its binding site. Condition category: normal nutrient_topic: Citrulline research collection; topical membership is not evidence of a direct dietary effect. plain_language: The active energy substrate is linked to magnesium, but more magnesium is not automatically rate-limiting. organism: Human ASS1 tissue_or_cell_type: ATP-binding region experimental_model: Chemical modification and substrate protection of enzyme limitations: Protection assay identifies binding requirements; it is not a magnesium supplementation or depletion study. exposure: Alpha-dicarbonyl modification with Mg-ATP protection evidence_span: {"source_cache": "artifacts/citrulline-research/2788888.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "29b1553359d37a53c529b8a2b53ba646cca6b4b401ba7a9722e0e1f15510e676", "start_char": 0, "end_char": 1043, "text_sha256": "29b1553359d37a53c529b8a2b53ba646cca6b4b401ba7a9722e0e1f15510e676"} [citrulline-p2788888] Identification of essential arginine residue(s) for Mg-ATP binding of human argininosuccinate synthetase. (1989). https://pubmed.ncbi.nlm.nih.gov/2788888/
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.