This domain belongs to a more diverse superfamily, including Pfam:PF01331 and Pfam:PF01653 [3].

1: Crystal structure of an ATP-dependent DNA ligase from bacteriophage T7. Subramanya HS, Doherty AJ, Ashford SR, Wigley DB; Cell 1996;85:607-615. PMID:8653795

2: Mammalian DNA ligases. Tomkinson AE, Levin DS; Bioessays 1997;19:893-901. PMID:9363683

3: Gleaning non-trivial structural, functional and evolutionary information about proteins by iterative database searches. Aravind L, Koonin EV; J Mol Biol 1999;287:1023-1040. PMID:10222208