Extracellular Domain Biology Definition

What does extracellular mean.

Extracellular domain biology definition. Extracellular domain is part of the receptor so as to protrude from the outer membrane of the cell organelles and cells. Extracellular adjective the adjective extracellular has 1 sense. The ligand binding domain is also called the extracellular domain.

All g protein linked receptors have seven transmembrane domains but each receptor has its own specific extracellular domain and g protein binding site. By definition recognize specific ligand e g. Located or occurring outside a cell or cells familiarity information.

The size and extent of each of these domains vary widely depending on the type of receptor. When a ligand binds to the extracellular domain a signal is transferred through the membrane activating the enzyme. If you have multiple intersecting bilayer the polypeptide chains of the receptor may include a line of adherent plurality extracellular domain a membrane.