Deoxyribonucleic acid and DNA-modifying enzymes (DNA, null for the group of associated enzymes (individual enzymes have abbreviations, e.g., DNA ligase, POL, PARP))

Deoxyribonucleic acid (DNA) is the hereditary material in cells and viruses, composed of a double-stranded helix of nucleotides encoding genetic information essential for all living organisms. DNA is acted upon by a range of associated enzymes—including DNA polymerases (replication), ligases (joining/stitching of strands), topoisomerases (supercoiling management), nucleases (strand cutting), methyltransferases (epigenetic modification), and DNA repair enzymes (damage correction)—each with specialized roles in cellular homeostasis, division, and response to environmental stress. Both DNA and its associated enzymes are central to disease pathogenesis, notably in cancer, inflammation, neurodegeneration, genetic disorders, and infection, making them major therapeutic targets for drugs that either damage, protect, or modulate repair pathways. However, listing ‘DNA and associated enzymes’ together is not standard nomenclature and should typically be decomposed into individual targets for research or therapeutic applications.

Other names

DNAdeoxyribonucleic acidDNA polymerasesDNA ligasesDNA repair enzymesnucleic acid

Inhibition of DNA repair (sensitizes cancer cells to DNA damage, induces cell death); Induction of DNA damage (cytotoxic agents target DNA directly); Blockade of specific DNA-modifying enzymes (prevents repair, alters gene expression); Stimulation of DNA repair (therapeutic upregulation for degenerative or inflammatory diseases)