Chemicals and Drugs

Homocysteine

A thiol-containing amino acid formed by a demethylation of METHIONINE.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A thiol-containing amino acid formed by a demethylation of METHIONINE.

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

5 entry terms
  • 2-amino-4-mercaptobutyric acid
  • Homocysteine, L-Isomer
  • 2 amino 4 mercaptobutyric acid
  • Homocysteine, L Isomer
  • L-Isomer Homocysteine

MeSH Record

Aspects Covered

30 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analogs & derivatives, 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, urine.

MeSH Record

Indexing Annotation

do not confuse with HOMOCYSTINE

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Homocysteine. Medical Subject Headings (MeSH). 2026. Unique ID D006710. http://id.nlm.nih.gov/mesh/2026/D006710
  2. Homocysteine. In: Wikipedia. https://en.wikipedia.org/wiki/Homocysteine
  3. Homocysteine. In: Wikidata. https://www.wikidata.org/wiki/Q192466