obsolete ANPR-A:ANP complex (obsolete GO:1990618)
OBSOLETE. The ANPR-A:ANP complex is composed of the hormone AMP bound to the extracellular domain of ANPR-A domain. It is formed in the atrium in response to atrial distension (high blood volume) and leads to guanylate cyclase activity of the ANPR-A receptor, thereby elevating intracellular cGMP levels. The end result is a reduction in blood volume and, therefore, a reduction in cardiac output and systemic blood pressure. Therefore, ANPR-A:ANP complex plays a major role in the regulation of blood pressure and salt-fluid volume homeostasis.
ANPR-A:ANP complex
exact