calcium- and calmodulin-dependent protein kinase complex
calpain complex
carbamoyl-phosphate synthase complex
A protein complex that catalyzes the formation of carbamoyl phosphate; comprises a small subunit that binds and cleaves glutamine, and a large subunit that accepts the ammonia group cleaved from glutamine, binds all of the remaining substrates and effectors, and carries out all of the other catalytic events.