Chemicals and Drugs

Complement C3b Inactivator Proteins

Endogenous proteins that inhibit or inactivate COMPLEMENT C3B. They include COMPLEMENT FACTOR H and COMPLEMENT FACTOR I (C3b/C4b inactivator). They cleave or promote the cleavage of C3b into inactive fragments, and thus are important in the down-regulation of COMPLEMENT ACTIVATION and its cytolytic sequence.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Endogenous proteins that inhibit or inactivate COMPLEMENT C3B. They include COMPLEMENT FACTOR H and COMPLEMENT FACTOR I (C3b/C4b inactivator). They cleave or promote the cleavage of C3b into inactive fragments, and thus are important in the down-regulation of COMPLEMENT ACTIVATION and its cytolytic sequence.

MeSH Record

Classification

Related Concepts

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

13 entry terms
  • C3b Inactivators
  • C3b Inhibitors
  • Complement 3b Inactivators
  • Complement 3b Inhibitors
  • Complement C3b Inactivators
  • Complement C3b Inhibitor Proteins
  • Conglutinogen Activating Factors
  • Factors, Conglutinogen Activating
  • Inactivators, C3b
  • Inactivators, Complement 3b
  • Inactivators, Complement C3b
  • Inhibitors, C3b
  • Inhibitors, Complement 3b

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 (1978)

MeSH Record

Previous Indexing

  • Complement 3 (1975-1977)
  • Serum Globulins (1970-1977)

MeSH Hierarchy

Tree Number

AMA Style

References

  1. National Library of Medicine. Complement C3b Inactivator Proteins. Medical Subject Headings (MeSH). 2026. Unique ID D003180. http://id.nlm.nih.gov/mesh/2026/D003180
  2. Complement C3b Inactivator Proteins. In: Wikidata. https://www.wikidata.org/wiki/Q78345957