Component
Chicken tubulin tyrosine ligase / Ttl
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
TTL recognized the curved tubulin dimer and its alpha-tubulin tail, discriminating between tubulin subunits and modification states.
Experimental context and source evidence
- evidence_access
- Primary full text; Results
- experimental_model
- Chicken TTL structural reconstitution; tubulin-binding and activity comparisons.
- limitations
- Tubulin modification state controls access; the finding does not show dietary tyrosine is rate limiting.
- nutrient_topic
- L-Tyrosine collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · L-Tyrosine
- plain_language
- The enzyme needs the correct protein shape and tail, not just free amino acid.
- primary_references
- Structural basis of tubulin tyrosination by tubulin tyrosine ligase. · 2013 · https://pubmed.ncbi.nlm.nih.gov/23358242/ · DOI 10.1083/jcb.201211017
L-Tyrosine: catecholamines, thyroid chemistry, pigment, metabolism and cross-nutrient mechanisms (2026-09-19) · lines 324–330
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Chicken TTL structural reconstitution; tubulin-binding and activity comparisons. · source_derived_draft · unverified_draft
## l-tyrosine-tubulin-recognition The enzyme needs the correct protein shape and tail, not just free amino acid. TTL recognized the curved tubulin dimer and its alpha-tubulin tail, discriminating between tubulin subunits and modification states. Model: Chicken TTL structural reconstitution; tubulin-binding and activity comparisons. Limitations: Tubulin modification state controls access; the finding does not show dietary tyrosine is rate limiting. Evidence access: Primary full text; Results Structural basis of tubulin tyrosination by tubulin tyrosine ligase. · 2013 · https://pubmed.ncbi.nlm.nih.gov/23358242/ · DOI 10.1083/jcb.201211017
Complete structured claim and evidenceRecombinant chicken TTL incorporated radiolabeled tyrosine into mammalian brain alpha-tubulin in ATP/Mg-containing assays.
Experimental context and source evidence
- evidence_access
- Primary full text; Methods and structure
- experimental_model
- Chicken enzyme with bovine/porcine tubulin; 400 micromolar ATP, 2.4 millimolar MgCl2 and 5 micromolar labeled tyrosine in activity assays.
- limitations
- Mixed-species reconstitution is not a human supplementation experiment. This is retyrosination, not tyrosine phosphorylation.
- nutrient_topic
- L-Tyrosine collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · L-Tyrosine
- plain_language
- Tyrosine can be attached to an existing protein after translation.
- primary_references
- Structural basis of tubulin tyrosination by tubulin tyrosine ligase. · 2013 · https://pubmed.ncbi.nlm.nih.gov/23358242/ · DOI 10.1083/jcb.201211017
L-Tyrosine: catecholamines, thyroid chemistry, pigment, metabolism and cross-nutrient mechanisms (2026-09-19) · lines 316–322
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Chicken enzyme with bovine/porcine tubulin; 400 micromolar ATP, 2.4 millimolar MgCl2 and 5 micromolar labeled tyrosine in activity assays. · source_derived_draft · unverified_draft
## l-tyrosine-tubulin-retyrosination Tyrosine can be attached to an existing protein after translation. Recombinant chicken TTL incorporated radiolabeled tyrosine into mammalian brain alpha-tubulin in ATP/Mg-containing assays. Model: Chicken enzyme with bovine/porcine tubulin; 400 micromolar ATP, 2.4 millimolar MgCl2 and 5 micromolar labeled tyrosine in activity assays. Limitations: Mixed-species reconstitution is not a human supplementation experiment. This is retyrosination, not tyrosine phosphorylation. Evidence access: Primary full text; Methods and structure Structural basis of tubulin tyrosination by tubulin tyrosine ligase. · 2013 · https://pubmed.ncbi.nlm.nih.gov/23358242/ · DOI 10.1083/jcb.201211017
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.