Chemicals and Drugs

Cytochromes

Hemeproteins whose characteristic mode of action involves transfer of reducing equivalents which are associated with a reversible change in oxidation state of the prosthetic group. Formally, this redox change involves a single-electron, reversible equilibrium between the Fe(II) and Fe(III) states of the central iron atom (From Enzyme Nomenclature, 1992, p539). The various cytochrome subclasses are organized by the type of HEME and by the wavelength range of their reduced alpha-absorption bands.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Hemeproteins whose characteristic mode of action involves transfer of reducing equivalents which are associated with a reversible change in oxidation state of the prosthetic group. Formally, this redox change involves a single-electron, reversible equilibrium between the Fe(II) and Fe(III) states of the central iron atom (From Enzyme Nomenclature, 1992, p539). The various cytochrome subclasses are organized by the type of HEME and by the wavelength range of their reduced alpha-absorption bands.

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Classification

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Synonyms

1 entry terms
  • Cytochrome

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

Indexing Annotation

general or unspecified; prefer specific cytochrome

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NLM Classification

WH 190

AMA Style

References

  1. National Library of Medicine. Cytochromes. Medical Subject Headings (MeSH). 2026. Unique ID D003580. http://id.nlm.nih.gov/mesh/2026/D003580
  2. Cytochromes. In: Wikipedia. https://en.wikipedia.org/wiki/Cytochrome
  3. Cytochromes. In: Wikidata. https://www.wikidata.org/wiki/Q408068