DNA Ligase 4

**Semantic type:** Amino Acid, Peptide, or Protein|Enzyme

**Definition:** DNA ligase 4 (911 aa, ~104 kDa) is encoded by the human LIG4 gene. This protein plays a role in non-homologous end joining during both DNA repair and V(D)J recombination.

**Synonyms:** - DNA Joinase - DNA Ligase IV - DNA Repair Enzyme - EC 6.5.1.1 - LIG4 - Ligase IV, DNA, ATP-Dependent - Polydeoxyribonucleotide Synthase 4 - Polydeoxyribonucleotide Synthase [ATP] 4 - Polynucleotide Ligase - Sealase