Chemicals and Drugs

RNA Polymerase III

A DNA-dependent RNA polymerase present in bacterial, plant, and animal cells. It functions in the nucleoplasmic structure where it transcribes DNA into RNA. It has specific requirements for cations and salt and has shown an intermediate sensitivity to alpha-amanitin in comparison to RNA polymerase I and II.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A DNA-dependent RNA polymerase present in bacterial, plant, and animal cells. It functions in the nucleoplasmic structure where it transcribes DNA into RNA. It has specific requirements for cations and salt and has shown an intermediate sensitivity to alpha-amanitin in comparison to RNA polymerase I and II.

MeSH Record

Classification

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MeSH Record

Synonyms

5 entry terms
  • DNA-Dependent RNA Polymerase III
  • RNA Polymerase C
  • DNA Dependent RNA Polymerase III
  • Polymerase C, RNA
  • Polymerase III, RNA

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

91(77); was see under RNA POLYMERASES 1977-90

MeSH Record

Previous Indexing

  • RNA Nucleotidyltransferases (1968-1972)
  • RNA Polymerases (1973-1976)

MeSH Hierarchy

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AMA Style

References

  1. National Library of Medicine. RNA Polymerase III. Medical Subject Headings (MeSH). 2026. Unique ID D012320. http://id.nlm.nih.gov/mesh/2026/D012320
  2. RNA Polymerase III. In: Wikipedia. https://en.wikipedia.org/wiki/RNA_polymerase_III
  3. RNA Polymerase III. In: Wikidata. https://www.wikidata.org/wiki/Q3501658