Chemicals and Drugs

Ornithine Decarboxylase

A pyridoxal-phosphate protein, believed to be the rate-limiting compound in the biosynthesis of polyamines. It catalyzes the decarboxylation of ornithine to form putrescine, which is then linked to a propylamine moiety of decarboxylated S-adenosylmethionine to form spermidine.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A pyridoxal-phosphate protein, believed to be the rate-limiting compound in the biosynthesis of polyamines. It catalyzes the decarboxylation of ornithine to form putrescine, which is then linked to a propylamine moiety of decarboxylated S-adenosylmethionine to form spermidine.

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

4 entry terms
  • Ornithine Carboxy-lyase
  • Carboxy-lyase, Ornithine
  • Decarboxylase, Ornithine
  • Ornithine Carboxy lyase

MeSH Record

Aspects Covered

28 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, analysis, 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

84(75); was see under CARBOXY-LYASES 1975-83

MeSH Record

Previous Indexing

  • Carboxy-Lyases (1972-1974)
  • Ornithine (1972-1974)

MeSH Hierarchy

Tree Number

MeSH Record

NLM Classification

QU 139

AMA Style

References

  1. National Library of Medicine. Ornithine Decarboxylase. Medical Subject Headings (MeSH). 2026. Unique ID D009955. http://id.nlm.nih.gov/mesh/2026/D009955
  2. Ornithine Decarboxylase. In: Wikipedia. https://en.wikipedia.org/wiki/Ornithine_decarboxylase
  3. Ornithine Decarboxylase. In: Wikidata. https://www.wikidata.org/wiki/Q931579