The DNA maturation domain of gpA, the DNA packaging motor protein of bacteriophage lambda, contains an ATPase site associated with endonuclease activity.
Ortega ME, Gaussier H, Catalano CE. The DNA maturation domain of gpA, the DNA packaging motor protein of bacteriophage lambda, contains an ATPase site associated with endonuclease activity. J Mol Biol. 2007 Nov 02; 373(4):851-65.