Endothelin receptor
Encyclopedia
There are at least three known endothelin
receptors, ETA, ETB1 and ETB2, all of which are G protein-coupled receptor
s whose activation result in elevation of intracellular-free calcium
.
and some forms of Waardenburg syndrome
.
Endothelin
Endothelins are proteins that constrict blood vessels and raise blood pressure. They are normally kept in balance by other mechanisms, but when they are over-expressed, they contribute to high blood pressure and heart disease....
receptors, ETA, ETB1 and ETB2, all of which are G protein-coupled receptor
G protein-coupled receptor
G protein-coupled receptors , also known as seven-transmembrane domain receptors, 7TM receptors, heptahelical receptors, serpentine receptor, and G protein-linked receptors , comprise a large protein family of transmembrane receptors that sense molecules outside the cell and activate inside signal...
s whose activation result in elevation of intracellular-free calcium
Calcium
Calcium is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078 amu. Calcium is a soft gray alkaline earth metal, and is the fifth-most-abundant element by mass in the Earth's crust...
.
Clinical significance
It is associated with ABCD syndromeABCD syndrome
ABCD syndrome is the acronym for albinism, black lock, cell migration disorder of the neurocytes of the gut and sensorineural deafness. It has been found to be caused by mutation in the endothelin B receptor gene .-Classification:...
and some forms of Waardenburg syndrome
Waardenburg syndrome
Waardenburg syndrome Waardenburg syndrome Waardenburg syndrome (also Waardenburg Shah Syndrome, Waardenburg-Klein syndrome, Mende's syndrome II, Van der Hoeve-Halbertsma-Waardenburg syndrome, Ptosis-Epicanthus syndrome, Van der Hoeve-Halbertsma-Gualdi syndrome, Waardenburg type Pierpont,[5] Van...
.