This model represents a family of proteobacterial TonB-dependent outer membrane receptor/transporters which bind and translocate copper ions. Two characterized members of this family exist, outer membrane protein C (OprC) from Pseudomonas aeruginosa and NosA from Pseudomonas stutzeri which is responsible for providing copper for the copper-containing N2O reducatse. [Transport and binding proteins, Cations and iron carrying compounds, Transport and binding proteins, Porins]
Jiyao W et al.(2023). "The conserved domain database in 2023.",