Chemicals and Drugs

Nonsense Codon

An amino acid-specifying codon that has been converted to a stop codon (CODON, TERMINATOR) by mutation. Its occurance is abnormal causing premature termination of protein translation and results in production of truncated and non-functional proteins. A nonsense mutation is one that converts an amino acid-specific codon to a stop codon.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

An amino acid-specifying codon that has been converted to a stop codon (CODON, TERMINATOR) by mutation. Its occurance is abnormal causing premature termination of protein translation and results in production of truncated and non-functional proteins. A nonsense mutation is one that converts an amino acid-specific codon to a stop codon.

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

60 entry terms
  • Codon, Nonsense
  • Codon, Termination, Premature
  • Premature Stop Codon
  • Premature Termination Codon
  • Codon, Premature Stop
  • Codon, Premature Termination
  • Codons, Nonsense
  • Codons, Premature Stop
  • Codons, Premature Termination
  • Nonsense Codons
  • Premature Stop Codons
  • Premature Termination Codons
  • Stop Codon, Premature
  • Stop Codons, Premature
  • Termination Codon, Premature
  • Termination Codons, Premature
  • Amber Nonsense Codon
  • Amber Nonsense Mutation
  • Codon, Unassigned
  • Mutation, Nonsense
  • Nonsense Codon, Amber
  • Nonsense Mutation
  • Ochre Nonsense Codon
  • Ochre Nonsense Mutation
  • Opal Nonsense Codon
  • Opal Nonsense Mutation
  • Unassigned Codon
  • Amber Nonsense Codons
  • Amber Nonsense Mutations
  • Codon, Amber Nonsense
  • Codon, Ochre Nonsense
  • Codon, Opal Nonsense
  • Codons, Amber Nonsense
  • Codons, Ochre Nonsense
  • Codons, Opal Nonsense
  • Codons, Unassigned
  • Mutation, Amber Nonsense
  • Mutation, Ochre Nonsense
  • Mutation, Opal Nonsense
  • Mutations, Amber Nonsense
  • Mutations, Nonsense
  • Mutations, Ochre Nonsense
  • Mutations, Opal Nonsense
  • Nonsense Codon, Ochre
  • Nonsense Codon, Opal
  • Nonsense Codons, Amber
  • Nonsense Codons, Ochre
  • Nonsense Codons, Opal
  • Nonsense Mutation, Amber
  • Nonsense Mutation, Ochre
  • Nonsense Mutation, Opal
  • Nonsense Mutations
  • Nonsense Mutations, Amber
  • Nonsense Mutations, Ochre
  • Nonsense Mutations, Opal
  • Ochre Nonsense Codons
  • Ochre Nonsense Mutations
  • Opal Nonsense Codons
  • Opal Nonsense Mutations
  • Unassigned Codons

MeSH Record

Aspects Covered

29 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, antagonists & inhibitors, biosynthesis, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, 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

Indexing Annotation

for amber or ochre suppressor mutations use SUPPRESSION, GENETIC

MeSH Record

History Note

95

MeSH Record

Previous Indexing

  • Codon (1975-1994)
  • Genetic Code (1966-1974)

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Nonsense Codon. Medical Subject Headings (MeSH). 2026. Unique ID D018389. http://id.nlm.nih.gov/mesh/2026/D018389
  2. Nonsense Codon. In: Wikidata. https://www.wikidata.org/wiki/Q30060492