Chemicals and Drugs

Complement C5

C5 plays a central role in both the classical and the alternative pathway of COMPLEMENT ACTIVATION. C5 is cleaved by C5 CONVERTASE into COMPLEMENT C5A and COMPLEMENT C5B. The smaller fragment C5a is an ANAPHYLATOXIN and mediator of inflammatory process. The major fragment C5b binds to the membrane initiating the spontaneous assembly of the late complement components, C5-C9, into the MEMBRANE ATTACK COMPLEX.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

C5 plays a central role in both the classical and the alternative pathway of COMPLEMENT ACTIVATION. C5 is cleaved by C5 CONVERTASE into COMPLEMENT C5A and COMPLEMENT C5B. The smaller fragment C5a is an ANAPHYLATOXIN and mediator of inflammatory process. The major fragment C5b binds to the membrane initiating the spontaneous assembly of the late complement components, C5-C9, into the MEMBRANE ATTACK COMPLEX.

MeSH Record

Classification

Related Concepts

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

15 entry terms
  • C5 Complement
  • Complement 5
  • Complement Component 5
  • C5, Complement
  • Complement, C5
  • Component 5, Complement
  • Complement C5, Precursor
  • Precursor C5
  • Pro-C5
  • Pro-complement 5
  • C5, Precursor
  • C5, Precursor Complement
  • Precursor Complement C5
  • Pro C5
  • Pro complement 5

MeSH Record

Aspects Covered

29 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, antagonists & inhibitors, biosynthesis, 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

2006 (1975)

MeSH Record

Previous Indexing

  • Complement (1968-1974)
  • Histamine Liberation (1966-1974)

MeSH Hierarchy

Tree Number

AMA Style

References

  1. National Library of Medicine. Complement C5. Medical Subject Headings (MeSH). 2026. Unique ID D003182. http://id.nlm.nih.gov/mesh/2026/D003182
  2. Complement C5. In: Wikipedia. https://en.wikipedia.org/wiki/Complement_component_5
  3. Complement C5. In: Wikidata. https://www.wikidata.org/wiki/Q426181