Phosphodiesterase 6G, CGMP-Specific, Rod, gamma, or Phosphodiesterase 6G, is a human gene encoded by PDE6G. It may also be known as: Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma; PDEG; RP57; phosphodiesterase 6G, cGMP-specific, rod, gamma. The encoded protein is an enzyme with an amino acid length of 87 and a mass of 9.6 kDa. Phosphodiesterase 6G, CGMP-Specific, Rod, gamma is a member of the Rod/cone cGMP-PDE gamma subunit family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.