TadZ_N is the N-terminal region of the Flp pilus assembly protein TadZ, which carries an AAA, ATPase domain immediately downstream, AAA_31, pfam13614. The domain is an example of a signal-transduction-response receiver. It is localized to the cytoplasmic side of the inner bacterial cell-membrane, contacting also with both tadA and RcpC.
Jiyao W et al.(2023). "The conserved domain database in 2023.",