| S.NO | Uniprot ID | Protein Name | Sequence Length | HMA Repeated Region | Function |
| 1 | P35670 | Copper-transporting ATPase 2 | 1465 | "Copper ion transmembrane transporter involved in the export of copper out of the cells, such as the efflux of hepatic copper into the bile". | |
| 2 | Q04656 | Copper-transporting ATPase 1 | 1500 | "May supply copper to copper-requiring proteins within the secretory pathway, when localized in the trans-Golgi network. Under conditions of elevated extracellular copper, it relocalized to the plasma membrane where it functions in the efflux of copper from cells". |