Asymmetric DNA recognition by the OkrAI endonuclease, an isoschizomer of BamHI. - Éva Scheuring Vanamee; Hector Viadiu; Siu-Hong Chan; Ajay Ummat; Adrian M. Hartline; Shuang-yong Xu; Aneel K. Aggarwal (Nucleic Acids Res., 2011)