This domain directs oriented DNA translocation and forms a winged helix structure [1]. Mutated proteins with substitutions in the FtsK gamma DNA-recognition helix are impaired in DNA binding [1].

1: The FtsK gamma domain directs oriented DNA translocation by interacting with KOPS. Sivanathan V, Allen MD, de Bekker C, Baker R, Arciszewska LK, Freund SM, Bycroft M, Lowe J, Sherratt DJ; Nat Struct Mol Biol. 2006;13:965-972. PMID:17057717