Chemicals and Drugs

UGT1A1 Enzyme

Glucuronosyltransferase encoded by UGT1 complex which encodes human bilirubin, phenol, and other UDP-glucuronosyltransferase isozymes with identical carboxyl termini. It catalyzes reactions where lipophilic substrates are conjugated with glucuronic acid to increase the metabolite's water solubility and excretion into either urine or bile. UGT1A1enzyme is essential for elimination and detoxification of drugs, xenobiotics and metabolites.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Glucuronosyltransferase encoded by UGT1 complex which encodes human bilirubin, phenol, and other UDP-glucuronosyltransferase isozymes with identical carboxyl termini. It catalyzes reactions where lipophilic substrates are conjugated with glucuronic acid to increase the metabolite's water solubility and excretion into either urine or bile. UGT1A1enzyme is essential for elimination and detoxification of drugs, xenobiotics and metabolites.

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Classification

Broader headings

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MeSH Record

Synonyms

7 entry terms
  • 1-Naphthol UDP-Glucuronosyltransferase
  • Bilirubin Uridine-Diphosphoglucuronosyl Transferase 1A1
  • Phenol GCStransferase
  • Phenol UDP-Glucuronosyltransferase
  • UDP Glucuronosyltransferase 1A1
  • UDP-Glucuronosyltransferase 1A1
  • UGT1A1 Protein

MeSH Record

Aspects Covered

29 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, deficiency, drug effects, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, ultrastructure, urine.

MeSH Record

History Note

2026; UGT1A1 ENZYME was indexed under GLUCURONOSYLTRANSFERASE 2001-2026

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References

  1. National Library of Medicine. UGT1A1 Enzyme. Medical Subject Headings (MeSH). 2026. Unique ID D000099148. http://id.nlm.nih.gov/mesh/2026/D000099148
  2. UGT1A1 Enzyme. In: Wikidata. https://www.wikidata.org/wiki/Q3547204