Human TRPC6 Synthetic Peptide. Trpc6 forms a receptor-activated calcium channel in the cell membrane. The Trpc6 channel is activated by diacylglycerol and is thought to be under the control of a phosphatidylinositol second messenger system. Activation of the Trpc6 channel occurs independently of protein kinase C and is not triggered by low levels of intracellular calcium. Defects in the Trpc6 gene are a cause of focal segmental glomerulosclerosis 2 (FSGS2). Further, Trpc6 is a member of the mammalian transient receptor potential (TRP) superfamily can be divided into three major families including the ``canonical TRP'' (TRPC) family. The seven members of this family share the activation through PLC-coupled receptors and have been suggested to