Component

Biocytin / N-epsilon-biotinyl-L-lysine

Biocytin / N-epsilon-biotinyl-L-lysine. Species, exposure and limitations are retained in each linked claim.

2 recorded relationships. Experimental role, claim status and evidence remain attached to each record.

Read recorded mechanisms Open recursive mind map

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.

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.

Recorded relationships

What acts on it

  1. Biotinidase releases biotin from its linkage to the epsilon-amino group of lysine, allowing the cofactor to be reused.

    Human biotinidase / BTD → Biocytin / N-epsilon-biotinyl-L-lysine source_derived_draftungraded
    Experimental context and source evidence
    evidence_span
    {"source_cache": "artifacts/biotin-research/6883721.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "0f881dd651d45537377661fc515239c3babb7160c3dbd53b8b0611ba33625aaa", "start_char": 0, "end_char": 1500, "text_sha256": "0f881dd651d45537377661fc515239c3babb7160c3dbd53b8b0611ba33625aaa"}
    experimental_model
    Serum enzyme assays in 5 children with late-onset multiple carboxylase deficiency and family members
    exposure
    Inherited deficiency; patient/control comparison
    limitations
    Early small case series; the serum enzyme phenotype is genetic machinery impairment, not proof of low dietary intake.
    nutrient_topic
    Biotin research collection; topical membership is not evidence of a direct dietary effect. · Biotin
    organism
    Homo sapiens
    plain_language
    Biotinidase recovers biotin after biotin-containing material is broken down.
    primary_references
    [b7-p6883721] Biotinidase deficiency: the enzymatic defect in late-onset multiple carboxylase deficiency. (1983). https://pubmed.ncbi.nlm.nih.gov/6883721/ DOI: 10.1016/0009-8981(83)90096-7
    tissue_or_cell_type
    Serum and biochemical disease phenotype

    Biotin: carboxylases, recycling, deficiency and nutrient interactions (2026-09-17) · lines 455–466

    AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Serum enzyme assays in 5 children with late-onset multiple carboxylase deficiency and family members · source_derived_draft · unverified_draft

    ### b7-btd-recycling Biotinidase releases biotin from its linkage to the epsilon-amino group of lysine, allowing the cofactor to be reused. Condition category: normal nutrient_topic: Biotin research collection; topical membership is not evidence of a direct dietary effect. plain_language: Biotinidase recovers biotin after biotin-containing material is broken down. organism: Homo sapiens tissue_or_cell_type: Serum and biochemical disease phenotype experimental_model: Serum enzyme assays in 5 children with late-onset multiple carboxylase deficiency and family members limitations: Early small case series; the serum enzyme phenotype is genetic machinery impairment, not proof of low dietary intake. exposure: Inherited deficiency; patient/control comparison evidence_span: {"source_cache": "artifacts/biotin-research/6883721.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "0f881dd651d45537377661fc515239c3babb7160c3dbd53b8b0611ba33625aaa", "start_char": 0, "end_char": 1500, "text_sha256": "0f881dd651d45537377661fc515239c3babb7160c3dbd53b8b0611ba33625aaa"} [b7-p6883721] Biotinidase deficiency: the enzymatic defect in late-onset multiple carboxylase deficiency. (1983). https://pubmed.ncbi.nlm.nih.gov/6883721/ DOI: 10.1016/0009-8981(83)90096-7
    Complete structured claim and evidence

Where it participates (unsigned role)

  1. The five affected children had serum biotinidase activity at 0–3% of the control mean, with combined carboxylase abnormalities.

    Human biotinidase / BTD → Human serum biotinidase activity source_derived_draftungraded
    Experimental context and source evidence
    availability_state
    machinery_impairment Imported condition classification; unverified.
    evidence_span
    {"source_cache": "artifacts/biotin-research/6883721.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "0f881dd651d45537377661fc515239c3babb7160c3dbd53b8b0611ba33625aaa", "start_char": 0, "end_char": 1500, "text_sha256": "0f881dd651d45537377661fc515239c3babb7160c3dbd53b8b0611ba33625aaa"}
    experimental_model
    Serum enzyme assays in 5 children with late-onset multiple carboxylase deficiency and family members
    exposure
    Inherited deficiency; patient/control comparison
    limitations
    Early small case series; the serum enzyme phenotype is genetic machinery impairment, not proof of low dietary intake.
    nutrient_topic
    Biotin research collection; topical membership is not evidence of a direct dietary effect. · Biotin
    organism
    Homo sapiens
    plain_language
    A recycling defect can affect several enzyme pathways at once.
    primary_references
    [b7-p6883721] Biotinidase deficiency: the enzymatic defect in late-onset multiple carboxylase deficiency. (1983). https://pubmed.ncbi.nlm.nih.gov/6883721/ DOI: 10.1016/0009-8981(83)90096-7
    tissue_or_cell_type
    Serum and biochemical disease phenotype
    trigger_kind
    machinery_impairment Imported condition classification; unverified.

    Biotin: carboxylases, recycling, deficiency and nutrient interactions (2026-09-17) · lines 468–479

    AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Serum enzyme assays in 5 children with late-onset multiple carboxylase deficiency and family members · source_derived_draft · unverified_draft

    ### b7-btd-low-activity The five affected children had serum biotinidase activity at 0–3% of the control mean, with combined carboxylase abnormalities. Condition category: machinery_impairment nutrient_topic: Biotin research collection; topical membership is not evidence of a direct dietary effect. plain_language: A recycling defect can affect several enzyme pathways at once. organism: Homo sapiens tissue_or_cell_type: Serum and biochemical disease phenotype experimental_model: Serum enzyme assays in 5 children with late-onset multiple carboxylase deficiency and family members limitations: Early small case series; the serum enzyme phenotype is genetic machinery impairment, not proof of low dietary intake. exposure: Inherited deficiency; patient/control comparison evidence_span: {"source_cache": "artifacts/biotin-research/6883721.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "0f881dd651d45537377661fc515239c3babb7160c3dbd53b8b0611ba33625aaa", "start_char": 0, "end_char": 1500, "text_sha256": "0f881dd651d45537377661fc515239c3babb7160c3dbd53b8b0611ba33625aaa"} [b7-p6883721] Biotinidase deficiency: the enzymatic defect in late-onset multiple carboxylase deficiency. (1983). https://pubmed.ncbi.nlm.nih.gov/6883721/ DOI: 10.1016/0009-8981(83)90096-7
    Complete structured claim and evidence

In the sources

Preserved passages that mention this component, quoted exactly. Open one to read it in context.

    This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.

    Evidence, AI assistance and curation standards