Parkinsonism with Polyneuropathy, also known as pknpy, is related to contractures, pterygia, and spondylocarpotarsal fusion syndrome 1a and parkinsonism. An important gene associated with Parkinsonism with Polyneuropathy is UQCRC1 (Ubiquinol-Cytochrome C Reductase Core Protein 1). Affiliated tissues include brain, and related phenotypes are anxiety and rigidity