Fold: Restriction endonuclease-like [52979]
core: 3 layers, a/b/a; mixed beta-sheet of 5 strands, order 12345; strands 2 &, in some families, 5 are antiparallel to the rest
Family: YaeQ-like [159605]
Pfam 07152; contains extra N- and C-terminal beta-structures forming additional five-stranded beta-sheet; retains the PD motif in the putative active site