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COMM_Domain, a family of domains found at the C-terminus of HCarG, the copper metabolism gene MURR1 product, and related proteins. Presumably all COMM_Domain containing proteins are located in the nucleus and the COMM domain plays a role in protein-protein interactions. Several family members have been shown to bind and inhibit NF-kappaB. Murr1/Commd1 is a protein involved in copper homeostasis, which has also been identified as a regulator of the human delta epithelial sodium channel. HCaRG, a nuclear protein that might be involved in cell proliferation, is negatively regulated by extracellular calcium concentration, and its basal mRNA levels are higher in hypertensive animals.
Jiyao W et al.(2023). "The conserved domain database in 2023.",