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This distinct magnesium-dependent synthesis reaction should not be confused with magnesium binding to B1 enzymes.\norganism: Homo sapiens\ntissue_or_cell_type: Purified/expressed proteins\nexperimental_model: Recombinant human FLAD1 isoforms expressed in E. coli.\nlimitations: No tissue Mg threshold or combined B1/B2 deficiency experiment.\nevidence: [{\"paper_key\": \"brizio-2006-fad\", \"source_bundle\": \"artifacts/thiamine_metabolism_sources.json\", \"passage_ids\": [\"abstract\"], \"locator\": \"Primary publication abstract\", \"preservation\": \"Exact text retained in the source bundle; full source document retained when openly retrievable.\"}]\ncross_nutrient: B2 activation and Mg-dependent FAD synthesis provide a biochemical partner to B1-dependent complexes; direct transfer of newly made FAD to DLD was not tested.\nnutrient: Thiamine (vitamin B1)\n[brizio-2006-fad] Over-expression in Escherichia coli and characterization of two recombinant isoforms of human FAD synthetase (2006). https://pubmed.ncbi.nlm.nih.gov/16643857/ DOI: 10.1016/j.bbrc.2006.04.003","model_system":"Recombinant human FLAD1 isoforms expressed in E. coli.","directness":"author_interpretation","verification_status":"source_derived_draft","notes":"Exact curation-document quotation, not publisher quotation. Study references: [brizio-2006-fad] Over-expression in Escherichia coli and characterization of two recombinant isoforms of human FAD synthetase (2006). https://pubmed.ncbi.nlm.nih.gov/16643857/ DOI: 10.1016/j.bbrc.2006.04.003","relationship":"supports","weight":1.0,"link_notes":"","source":{"id":"158d2c03-ac8c-589f-8270-c468165ae346","stable_key":"import-46d15d9e-d3b5-544d-ba01-b785aa3e4f42","title":"Thiamine: mechanisms, deficiency and nutrient interactions (2026-09-17)","document_type":"imported_text","citation_label":"AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text.","file_path":"","sha256":"f376512fb3310141315548015b387833e3af45146e73fb73cd02cee20e4ddb9c","revision_id":"53bc5eda-dec8-58cc-a56f-a9eb4ab036ef","review_status":"unverified_draft","notes":""}}],"relations":[],"conflicts":[],"corrections":[],"research":null}