产品介绍： Copper is an essential element for function of chloroplasts. It is a co-factor for superoxide dismutase (SOD) and for plastocyanin. Copper is transported to chloroplasts with a help of Copper Chaperones, which carry out the delivery of copper from transporters to targets. In the last step chaperone binds to a copper dependent enzyme and inserts the copper ions into its active site. The Arabidopsis thaliana gene AtCCS encodes a copper chaperone for SOD. The AtCCS protein was localized to chloroplasts where it may supply copper to the stromal Cu/ZnSOD.