in summary , these results demonstrate that the principal cells of the cortical collecting tubule possess two distinct receptor systems for vasopressin , the well-known v2 receptor coupled to adenylate cyclase , and a v1 receptor system that leads to the mobilization of cytosolic calcium , coupled through a pertussis toxin substrate ( g protein ) to a production of inositol phosphates .
C0007634
the
C1383501
cytosolic