Chemicals and Drugs

Cytochromes a

A subclass of heme a containing cytochromes that have two imidazole nitrogens as axial ligands and an alpha-band absorption of 605 nm. They are found in a variety of microorganisms and in eucaryotes as a low-spin cytochrome component of MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX IV.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A subclass of heme a containing cytochromes that have two imidazole nitrogens as axial ligands and an alpha-band absorption of 605 nm. They are found in a variety of microorganisms and in eucaryotes as a low-spin cytochrome component of MITOCHONDRIAL ELECTRON TRANSPORT COMPLEX IV.

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

1 entry terms
  • Cytochrome 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

2004; use CYTOCHROME A GROUP 1994-2004, use CYTOCHROME A (NM) 1979-1993

MeSH Record

Previous Indexing

  • Cytochrome a Group (1994-2003)
  • Cytochromes (1979-1993)

MeSH Hierarchy

Tree Numbers

  1. D08.244w.175.249
  2. D12.776w.422w.220w.175.249

AMA Style

References

  1. National Library of Medicine. Cytochromes a. Medical Subject Headings (MeSH). 2026. Unique ID D045264. http://id.nlm.nih.gov/mesh/2026/D045264
  2. Cytochromes a. In: Wikidata. https://www.wikidata.org/wiki/Q76642071