Calcium / calmodulin - dependent 3 ' ; , 5 ' ; -cyclic nucleotide phosphodiesterase 1A is an enzyme that is encoded in humans by the `` PDE1A '' gene .
Calcium/calmodulin-dependent 3 ' , 5 ' -cyclic nucleotide phosphodiesterase 1A is an enzyme that in humans is encoded by the `` PDE1A '' gene .