This domain has an OB-like fold, but does not appear to be related to Pfam:PF03120. It is found at the C-terminus of the ATP dependent DNA ligase domain Pfam:PF01068 [1-3].

1: Analysis of the DNA joining repertoire of Chlorella virus DNA ligase and a new crystal structure of the ligase-adenylate intermediate. Odell M, Malinina L, Sriskanda V, Teplova M, Shuman S; Nucleic Acids Res. 2003;31:5090-5100. PMID:12930960

2: Crystal structure of eukaryotic DNA ligase-adenylate illuminates the mechanism of nick sensing and strand joining. Odell M, Sriskanda V, Shuman S, Nikolov DB; Mol Cell. 2000;6:1183-1193. PMID:11106756

3: Structural basis for nick recognition by a minimal pluripotent DNA ligase. Nair PA, Nandakumar J, Smith P, Odell M, Lima CD, Shuman S; Nat Struct Mol Biol. 2007;14:770-778. PMID:17618295