DNA ligase 4

mammalian protein found in Homo sapiens
Protein Protein Q21116593

Facts

9 properties
Instance of
protein
Part of
BRCT domain superfamily, DNA ligase 4, DNA ligase, ATP-dependent, N-terminal domain superfamily, Nucleic acid-binding, OB-fold, DNA ligase, ATP-dependent, central domain, protein family, DNA ligase IV domain, protein family, DNA ligase, ATP-dependent, C-terminal domain, protein family, DNA ligase, ATP-dependent, N-terminal domain, protein family, BRCT domain, protein family, DNA ligase, ATP-dependent, conserved site, protein family[1][2][3][4][5][6][7][8][9][10]
Biological process
nucleotide-excision repair, DNA gap filling, double-strand break repair via classical nonhomologous end joining, response to ionizing radiation, DNA recombination, lagging strand elongation, DNA biosynthetic process, cellular response to lithium ion, single strand break repair, cellular response to DNA damage stimulus, cell division, DNA replication, positive regulation of chromosome organization, establishment of integrated proviral latency, cell cycle, response to X-ray, positive regulation of neurogenesis, DNA ligation involved in DNA recombination, DNA ligation, DNA ligation involved in DNA repair, somatic stem cell population maintenance, chromosome organization, T cell receptor V(D)J recombination, neuron apoptotic process, isotype switching, T cell differentiation in thymus, central nervous system development, immunoglobulin V(D)J recombination, double-strand break repair via nonhomologous end joining, positive regulation of fibroblast proliferation, in utero embryonic development, cell population proliferation, V(D)J recombination, pro-B cell differentiation, DNA repair, response to gamma radiation, double-strand break repair, negative regulation of neuron apoptotic process, nucleotide-excision repair, DNA gap filling, double-strand break repair via nonhomologous end joining, cellular response to ionizing radiation[35][36][37][38][39][40][41][42][43][44][45][46][47][48]
Cell component
nucleoplasm, DNA ligase IV complex, nonhomologous end joining complex, condensed chromosome, nucleus, DNA-dependent protein kinase-DNA ligase 4 complex, cytoplasm, cytoplasmic ribonucleoprotein granule, DNA-dependent protein kinase-DNA ligase 4 complex, DNA ligase IV complex[27][28][29][30][31][32][33][34]
EC enzyme number
6.5.1.1[17]
Encoded by
LIG4
Found in taxon
Homo sapiens
Has part(s)
DNA ligase IV domain, DNA ligase, ATP-dependent, N-terminal, DNA ligase, ATP-dependent, C-terminal, DNA ligase, ATP-dependent, conserved site, BRCT domain, DNA ligase, ATP-dependent, central domain[11][12][13][14][15][16]
Molecular function
nucleotide binding, metal ion binding, protein C-terminus binding, protein binding, ATP binding, DNA ligase (ATP) activity, ligase activity, DNA binding, DNA ligase activity[18][19][20][21][22][23][24][25][26]
🏷️ Also known as
en DNA joinase en DNA ligase 4 en DNA ligase IV en DNA repair enzyme en LIG4 en ligase IV, DNA, ATP-dependent en polydeoxyribonucleotide synthase [ATP] 4 en polynucleotide ligase en sealase

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References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [1] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  2. [2] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  3. [3] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  4. [4] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  5. [5] ↑ . wikidata.org.
  6. [6] ↑ . wikidata.org.
  7. [7] ↑ . wikidata.org.
  8. [8] ↑ . wikidata.org.
  9. [9] ↑ . wikidata.org.
  10. [10] ↑ . wikidata.org.
  11. [11] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  12. [12] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  13. [13] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  14. [14] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  15. [15] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  16. [16] ↑ . InterPro Release 71.0. ebi.ac.uk. Provenance: wikidata.org.
  17. [17] ↑ . UniProt. Retrieved . wikidata.org.
  18. [18] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  19. [19] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  20. [20] ↑ . In vitro and in vivo interactions of DNA ligase IV with a subunit of the condensin complex. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  21. [21] ↑ . DNA ligase IV is essential for V(D)J recombination and DNA double-strand break repair in human precursor lymphocytes. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  22. [22] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  23. [23] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  24. [24] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  25. [25] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  26. [26] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  27. [27] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  28. [28] ↑ . DNA ligase IV is essential for V(D)J recombination and DNA double-strand break repair in human precursor lymphocytes. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  29. [29] ↑ . XLS (c9orf142) is a new component of mammalian DNA double-stranded break repair. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  30. [30] ↑ . In vitro and in vivo interactions of DNA ligase IV with a subunit of the condensin complex. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  31. [31] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  32. [32] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  33. [33] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  34. [34] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  35. [35] ↑ . Requirement for XRCC4 and DNA ligase IV in alignment-based gap filling for nonhomologous DNA end joining in vitro. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  36. [36] ↑ . DNA ligase III and DNA ligase IV carry out genetically distinct forms of end joining in human somatic cells. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  37. [37] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  38. [38] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  39. [39] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  40. [40] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  41. [41] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  42. [42] ↑ . DNA ligase IV from HeLa cell nuclei. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  43. [43] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  44. [44] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  45. [45] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  46. [46] ↑ . Human LIGIV is synthetically lethal with the loss of Rad54B-dependent recombination and is required for certain chromosome fusion events induced by telomere dysfunction. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  47. [47] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.
  48. [48] ↑ . GOA. Retrieved . ebi.ac.uk. Provenance: wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). DNA ligase 4. Retrieved October 30, 2026, from https://4ort.xyz/entity/dna-ligase-4
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BibTeX @misc{4ortxyz_dna-ligase-4_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{DNA ligase 4}}, year = {2026}, url = {https://4ort.xyz/entity/dna-ligase-4}, note = {Accessed: 2026-10-30}}
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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 15w ago · Boghog · 2026-07-24 view diff on Wikidata ↗
    Encoded by → LIG4
    Wikidata description → mammalian protein found in Homo sapiens
    Molecular function → nucleotide binding, metal ion binding, protein C-terminus binding +1
    Found in taxon → Homo sapiens
    + 10 other properties edited (see Wikidata diff for full list)
    "Created claim: EC enzyme number: 6.5.1.1, batch #261491"
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