Cnidarian and Algal homologs of the APOBEC4-like AID/APOBEC-like deaminases characterised by a distinct Zn chelating site involving residues from the conserved loops 1 and 3 [1].

1: Diversification of AID/APOBEC-like deaminases in metazoa: multiplicity of clades and widespread roles in immunity. Krishnan A, Iyer LM, Holland SJ, Boehm T, Aravind L; Proc Natl Acad Sci U S A. 2018;115:E3201. PMID:29555751