Chemicals and Drugs

DNA Glycosylases

A family of DNA repair enzymes that recognize damaged nucleotide bases and remove them by hydrolyzing the N-glycosidic bond that attaches them to the sugar backbone of the DNA molecule. The process called BASE EXCISION REPAIR can be completed by a DNA-(APURINIC OR APYRIMIDINIC SITE) LYASE which excises the remaining RIBOSE sugar from the DNA.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A family of DNA repair enzymes that recognize damaged nucleotide bases and remove them by hydrolyzing the N-glycosidic bond that attaches them to the sugar backbone of the DNA molecule. The process called BASE EXCISION REPAIR can be completed by a DNA-(APURINIC OR APYRIMIDINIC SITE) LYASE which excises the remaining RIBOSE sugar from the DNA.

MeSH Record

Classification

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MeSH Record

Synonyms

8 entry terms
  • DNA Glycosylase
  • DNA N-glycosidase
  • DNA N glycosidase
  • Glycosylase, DNA
  • Glycosylases, DNA
  • Methylpurine DNA Glycosylase
  • DNA Glycosylase, Methylpurine
  • Glycosylase, Methylpurine DNA

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

2004; use DNA GLYCOSIDASES (NM) 1980-2003

MeSH Record

Previous Indexing

  • DNA (1978-1981)
  • Glycoside Hydrolases (1978-1981)
  • N-Glycosyl Hydrolases (1982-2003)

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. DNA Glycosylases. Medical Subject Headings (MeSH). 2026. Unique ID D045647. http://id.nlm.nih.gov/mesh/2026/D045647
  2. DNA Glycosylases. In: Wikipedia. https://en.wikipedia.org/wiki/DNA_glycosylase
  3. DNA Glycosylases. In: Wikidata. https://www.wikidata.org/wiki/Q413156