Component
Escherichia coli acetate kinase / AckA
Context-specific entity; species, compartment and exposure are stated on each 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.
Where it participates (unsigned role)
E. coli TdcD or AckA converted propionyl phosphate to propionate with ATP generation in the anaerobic threonine-degradation pathway.
Experimental context and source evidence
- evidence_access
- Primary abstract
- experimental_model
- Mutant pathway analysis and enzyme characterization.
- limitations
- Whether this pathway changes human host exposure depends on community, substrate supply and environmental conditions.
- nutrient_topic
- L-Threonine collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · L-Threonine
- plain_language
- A microbial fermentation step releases energy as well as a short-chain fatty acid.
- primary_references
- Novel keto acid formate-lyase and propionate kinase enzymes are components of an anaerobic pathway in Escherichia coli that degrades L-threonine to propionate. · 1998 · https://pubmed.ncbi.nlm.nih.gov/9484901/ · DOI 10.1046/j.1365-2958.1998.00696.x
L-Threonine: translation, intestinal barrier, metabolism and cross-nutrient mechanisms (2026-09-19) · lines 434–440
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Mutant pathway analysis and enzyme characterization. · source_derived_draft · unverified_draft
## l-threonine-microbial-atp A microbial fermentation step releases energy as well as a short-chain fatty acid. E. coli TdcD or AckA converted propionyl phosphate to propionate with ATP generation in the anaerobic threonine-degradation pathway. Model: Mutant pathway analysis and enzyme characterization. Limitations: Whether this pathway changes human host exposure depends on community, substrate supply and environmental conditions. Evidence access: Primary abstract Novel keto acid formate-lyase and propionate kinase enzymes are components of an anaerobic pathway in Escherichia coli that degrades L-threonine to propionate. · 1998 · https://pubmed.ncbi.nlm.nih.gov/9484901/ · DOI 10.1046/j.1365-2958.1998.00696.x
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.