copper ion binding protein
This model describes an apparently copper-specific subfamily of the metal-binding domain HMA (pfam00403). Closely related sequences outside this model include mercury resistance proteins and repeated domains of eukaryotic eukaryotic copper transport proteins. Members of this family are strictly prokaryotic. The model identifies both small proteins consisting of just this domain and N-terminal regions of cation (probably copper) transporting ATPases. [Transport and binding proteins, Cations and iron carrying compounds]
Jiyao W et al.(2023). "The conserved domain database in 2023.",