APOBEC2 is a highly conserved (slow-evolving) family of AID/APOBECs found in most vertebrates including cartilaginous fishes. APOBEC2 is poorly understood in terms of their molecular functions and substrate specificity [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