Chemicals and Drugs

Elongin

A heterotrimeric protein complex composed of 110 kDa elongin A, 18 kDa elongin B, and 15 kDa elongin C subunits. It functions as a positive regulator of RNA POLYMERASE II, increasing its rate of transcriptional elongation by suppressing transient pausing along the DNA template. Elongin A is the transcriptionally active component; elongins B and C enhance its activity.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A heterotrimeric protein complex composed of 110 kDa elongin A, 18 kDa elongin B, and 15 kDa elongin C subunits. It functions as a positive regulator of RNA POLYMERASE II, increasing its rate of transcriptional elongation by suppressing transient pausing along the DNA template. Elongin A is the transcriptionally active component; elongins B and C enhance its activity.

MeSH Record

Classification

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MeSH Record

Synonyms

13 entry terms
  • Elongin Complex
  • SIII Elongation Factor
  • TF-SIII
  • Transcription Factor SIII
  • Complex, Elongin
  • Elongation Factor, SIII
  • SIII, Transcription Factor
  • EloA Protein
  • EloB Protein
  • EloC Protein
  • Elongin A
  • Elongin B
  • Elongin C

MeSH Record

Aspects Covered

30 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, 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

2018 (1995)

MeSH Hierarchy

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AMA Style

References

  1. National Library of Medicine. Elongin. Medical Subject Headings (MeSH). 2026. Unique ID D000075065. http://id.nlm.nih.gov/mesh/2026/D000075065
  2. Elongin. In: Wikidata. https://www.wikidata.org/wiki/Q21114386