Component
Mouse fibroblast glycosaminoglycan sulfation
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 acts on it
Wild-type Bpnt2 restored GAG sulfation in knockout fibroblasts; catalytic-dead D108A did not.
Experimental context and source evidence
- availability_state
- machinery_impairment Imported condition classification; unverified.
- evidence_access
- Primary full text
- experimental_model
- Mouse embryonic fibroblast pellets; complementation and sulfation assays.
- limitations
- Sulfation depends on compartment and substrate; not a universal human sulfur requirement.
- nutrient_topic
- Lithium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Lithium
- plain_language
- The enzyme must work, not merely be present.
- primary_references
- Sulfation of glycosaminoglycans depends on the catalytic activity of lithium-inhibited phosphatase BPNT2 in vitro. · 2021 · https://pubmed.ncbi.nlm.nih.gov/34634304/ · DOI 10.1016/j.jbc.2021.101293
- trigger_kind
- machinery_impairment Imported condition classification; unverified.
Lithium: metal-sensitive enzymes, transport and cross-nutrient mechanisms (2026-09-19) · lines 152–158
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Mouse embryonic fibroblast pellets; complementation and sulfation assays. · source_derived_draft · unverified_draft
## lithium-bpnt2-catalysis The enzyme must work, not merely be present. Wild-type Bpnt2 restored GAG sulfation in knockout fibroblasts; catalytic-dead D108A did not. Model: Mouse embryonic fibroblast pellets; complementation and sulfation assays. Limitations: Sulfation depends on compartment and substrate; not a universal human sulfur requirement. Evidence access: Primary full text Sulfation of glycosaminoglycans depends on the catalytic activity of lithium-inhibited phosphatase BPNT2 in vitro. · 2021 · https://pubmed.ncbi.nlm.nih.gov/34634304/ · DOI 10.1016/j.jbc.2021.101293
Complete structured claim and evidenceLiCl reduced intracellular and secreted GAG sulfation in wild-type mouse fibroblasts, with no further reduction after Bpnt2 knockout.
Experimental context and source evidence
- evidence_access
- Primary full text
- experimental_model
- Mouse embryonic fibroblasts; 10 mM LiCl versus matched NaCl.
- limitations
- High experimental exposure; knockout occlusion supports a pathway but does not prove clinical cartilage damage.
- nutrient_topic
- Lithium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Lithium
- plain_language
- The lithium response depended on this Golgi enzyme.
- primary_references
- Sulfation of glycosaminoglycans depends on the catalytic activity of lithium-inhibited phosphatase BPNT2 in vitro. · 2021 · https://pubmed.ncbi.nlm.nih.gov/34634304/ · DOI 10.1016/j.jbc.2021.101293
Lithium: metal-sensitive enzymes, transport and cross-nutrient mechanisms (2026-09-19) · lines 160–166
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Mouse embryonic fibroblasts; 10 mM LiCl versus matched NaCl. · source_derived_draft · unverified_draft
## lithium-bpnt2-lithium-gag The lithium response depended on this Golgi enzyme. LiCl reduced intracellular and secreted GAG sulfation in wild-type mouse fibroblasts, with no further reduction after Bpnt2 knockout. Model: Mouse embryonic fibroblasts; 10 mM LiCl versus matched NaCl. Limitations: High experimental exposure; knockout occlusion supports a pathway but does not prove clinical cartilage damage. Evidence access: Primary full text Sulfation of glycosaminoglycans depends on the catalytic activity of lithium-inhibited phosphatase BPNT2 in vitro. · 2021 · https://pubmed.ncbi.nlm.nih.gov/34634304/ · DOI 10.1016/j.jbc.2021.101293
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.