CCH (COPPER CHAPERONE). similar to ATX1, metal ion binding [Arabidopsis thaliana] (TAIR:AT1G66240.1); similar to copper chaperone [Populus alba x Populus tremula var. glandulosa] (GB:AAT12488.1); contains InterPro domain Heavy metal transport/detoxification protein; (InterPro:IPR006121)