Gap19 acetate (1507930-57-5, free)

Gap19 is a peptide that corresponds to a sequence on the cytoplasmic loop (CL) of Cx43.Hemichannel inhibition is due to the binding of Gap19 to the C-terminus (CT) thereby preventing intramolecular CT-CL interactions. The peptide inhibited Cx43 hemichannel unitary currents in both HeLa cells exogenously expressing Cx43 and acutely isolated pig ventricular cardiomyocytes.