CCS — Zea mays

Summary

ZM00001EB073490 (ZmCCS, also known as CCS, ZmSOD, or HMP03) on maize chromosome 2 encodes a protein containing SOD-like Cu/Zn and heavy-metal-associated domains, and is annotated with superoxide dismutase copper carrier activity, superoxide dismutase activity, and copper binding. The gene is associated with cellular response to ozone, UV-B, light intensity, and salinity, as well as lateral root branching, cellular copper ion homeostasis, and removal of superoxide radicals. It localises to the chloroplast stroma and cytoplasm. ZmCCS is linked to several agronomically important traits including drought and heat tolerance, rooting depth, root branching and length, leaf relative water content, photosynthetic rate, stomatal resistance, chlorophyll content, shoot dry weight, and nitrogen and protein content. Studies of related genes in other species connect the family to copper homeostasis and chloroplastic, cytosolic, and peroxisomal CuZnSOD activity.