What is "amicyanin"

n. (context protein English) A specific protein that plays a role in electron transfer, containing a copper atom.

Amicyanin is a type I copper protein that plays an integral role in electron transfer. In bacteria such as Paracoccus denitrificans, amicyanin is part of a three-member redox complex, along with methylamine dehydrogenase (MADH) and cytochrome c-551i.