This family consists of the N-terminus and thus the z-alpha domain of double-stranded RNA-specific adenosine deaminase (ADAR), an RNA- editing enzyme. The z-alpha domain is a Z-DNA binding domain, and binding of this region to B-DNA has been shown to be disfavoured by steric hindrance.
Jiyao W et al.(2023). "The conserved domain database in 2023.",