<qa>  What is the name of the protein called rod cGMP phosphodiesterase 6This study focuses on the form of RP caused by mutations modifications in the genetic information necessary to make the protein called rod cGMP phosphodiesterase 6 β subunit or PDE6β. Clinical diagnosis is made by function tests of the eye and confirmed using a specific method called molecular testing to verify that the PDE6B gene is not correct. 