InterPro domain: IPR017214

This entry represents a group of DOMON domain (named after DOpamine beta-MOnooxygenase N-terminal domain) containing proteins from plants. They also contain a cytochrome b561 domain C-terminal to the DOMON domain. DOMON domain could bind catecholamines and thereby could regulate the cytochrome b561 domain function. Proteins in this family may act as a catecholamine-responsive trans-membrane electron transporter [ 1 ].

1. Analysis of an Arabidopsis thaliana protein family, structurally related to cytochromes b561 and potentially involved in catecholamine biochemistry in plants. J. Plant Physiol. 161, 175-81