Chemicals and Drugs

Cysteine Synthase

An enzyme that catalyzes the biosynthesis of cysteine in microorganisms and plants from O-acetyl-L-serine and hydrogen sulfide. This enzyme was formerly listed as EC 4.2.99.8.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

An enzyme that catalyzes the biosynthesis of cysteine in microorganisms and plants from O-acetyl-L-serine and hydrogen sulfide. This enzyme was formerly listed as EC 4.2.99.8.

MeSH Record

Classification

Related Concepts

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MeSH Record

Synonyms

5 entry terms
  • O-Acetylserine (Thiol)-Lyase
  • O-Acetylserine Sulfhydrylase
  • O Acetylserine Sulfhydrylase
  • Sulfhydrylase, O-Acetylserine
  • Cysteine Synthase A

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

91(77); was see under LYASES 1977-90

MeSH Record

Previous Indexing

  • Cysteine (1966-1976)
  • Lyases (1966-1976)
  • Serine (1966-1976)

MeSH Hierarchy

Tree Number

AMA Style

References

  1. National Library of Medicine. Cysteine Synthase. Medical Subject Headings (MeSH). 2026. Unique ID D003547. http://id.nlm.nih.gov/mesh/2026/D003547
  2. Cysteine Synthase. In: Wikipedia. https://en.wikipedia.org/wiki/Cysteine_synthase
  3. Cysteine Synthase. In: Wikidata. https://www.wikidata.org/wiki/Q5201197