This entry (previously known as DUF1524) represents a domain found C-terminal in the GmrSD family of modification-dependent restriction endonucleases including SspE proteins [1]. SspE is a dual-function protein that exerts both N-terminal NTPase and ...
This entry (previously known as DUF1524) represents a domain found C-terminal in the GmrSD family of modification-dependent restriction endonucleases including SspE proteins [1]. SspE is a dual-function protein that exerts both N-terminal NTPase and C-terminal DNA nicking nuclease activities to defend against phage infection [2]. SspE has a phosphorothioate (PT) modification-binding preference and utilises epigenetic PT modification to accomplish self-nonself discrimination and to coordinate its NTPase and DNA nicking activities to fight against phages. The domain represented in this entry has a DNA nicking nuclease activity and belongs to HNH nuclease superfamily.
