Distribution and functional significance of the endothelin receptor subtypes in the rat adrenal gland.
Cell Tissue Res. 1997
. The receptors, ETA-R and ETB-R, belong to the superfamily of G protein-coupled receptors. The ETA subtype is selective for ET-1 and ET-2 compared to ET-3, whereas the ETB subtype is unable to distinguish among these three peptides.