Component
Mouse mitochondrial phenylalanyl-tRNA synthetase / Fars2
Context-specific entity; species, compartment and exposure are stated on each claim.
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 it acts on
Cardiac Fars2 deficiency impaired mitochondrial tRNA(Phe) aminoacylation and mitochondrial protein synthesis in mice.
Experimental context and source evidence
- availability_state
- machinery_impairment Imported condition classification; unverified.
- evidence_access
- Primary full text
- experimental_model
- Heart-specific Fars2-deficient mice and mitochondrial translation assays.
- limitations
- Genetic enzyme loss is not the same as inadequate dietary phenylalanine; human variant binding predictions were not direct kinetic measurements.
- nutrient_topic
- L-Phenylalanine collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · L-Phenylalanine
- plain_language
- Mitochondria need their own phenylalanine-loading enzyme.
- primary_references
- FARS2 Deficiency Causes Cardiomyopathy by Disrupting Mitochondrial Homeostasis and the Mitochondrial Quality Control System. · 2024 · https://pubmed.ncbi.nlm.nih.gov/38362779/ · DOI 10.1161/CIRCULATIONAHA.123.064489
- trigger_kind
- machinery_impairment Imported condition classification; unverified.
L-Phenylalanine: transport, protein synthesis, cofactor recycling and cross-nutrient mechanisms (2026-09-19) · lines 142–148
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Heart-specific Fars2-deficient mice and mitochondrial translation assays. · source_derived_draft · unverified_draft
## l-phenylalanine-mitochondrial-charging Mitochondria need their own phenylalanine-loading enzyme. Cardiac Fars2 deficiency impaired mitochondrial tRNA(Phe) aminoacylation and mitochondrial protein synthesis in mice. Model: Heart-specific Fars2-deficient mice and mitochondrial translation assays. Limitations: Genetic enzyme loss is not the same as inadequate dietary phenylalanine; human variant binding predictions were not direct kinetic measurements. Evidence access: Primary full text FARS2 Deficiency Causes Cardiomyopathy by Disrupting Mitochondrial Homeostasis and the Mitochondrial Quality Control System. · 2024 · https://pubmed.ncbi.nlm.nih.gov/38362779/ · DOI 10.1161/CIRCULATIONAHA.123.064489
Complete structured claim and evidenceHeart-specific Fars2 loss produced hypertrophy, ventricular dilation and progressive cardiac failure with mitochondrial dysfunction.
Experimental context and source evidence
- availability_state
- machinery_impairment Imported condition classification; unverified.
- evidence_access
- Primary full text
- experimental_model
- Conditional mouse cardiac Fars2 knockout; separate R415L model also studied.
- limitations
- No evidence here that phenylalanine supplements rescue the genetic defect.
- nutrient_topic
- L-Phenylalanine collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · L-Phenylalanine
- plain_language
- Failure at the protein-loading step can affect an organ that needs substantial energy.
- primary_references
- FARS2 Deficiency Causes Cardiomyopathy by Disrupting Mitochondrial Homeostasis and the Mitochondrial Quality Control System. · 2024 · https://pubmed.ncbi.nlm.nih.gov/38362779/ · DOI 10.1161/CIRCULATIONAHA.123.064489
- trigger_kind
- machinery_impairment Imported condition classification; unverified.
L-Phenylalanine: transport, protein synthesis, cofactor recycling and cross-nutrient mechanisms (2026-09-19) · lines 150–156
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Conditional mouse cardiac Fars2 knockout; separate R415L model also studied. · source_derived_draft · unverified_draft
## l-phenylalanine-mitochondrial-heart Failure at the protein-loading step can affect an organ that needs substantial energy. Heart-specific Fars2 loss produced hypertrophy, ventricular dilation and progressive cardiac failure with mitochondrial dysfunction. Model: Conditional mouse cardiac Fars2 knockout; separate R415L model also studied. Limitations: No evidence here that phenylalanine supplements rescue the genetic defect. Evidence access: Primary full text FARS2 Deficiency Causes Cardiomyopathy by Disrupting Mitochondrial Homeostasis and the Mitochondrial Quality Control System. · 2024 · https://pubmed.ncbi.nlm.nih.gov/38362779/ · DOI 10.1161/CIRCULATIONAHA.123.064489
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.