PNKD is a symbol for the gene, Paroxysmal nonkinesigenic dyskinesia, in humans. Other names include: Probable hydrolase PNKD; Myofibrillogenesis regulator 1; MR-1; Paroxysmal nonkinesiogenic dyskinesia protein; Trans-activated by hepatitis C virus core protein 2; Probable hydrolase PNKD ; BRP17; DYT8; FKSG19; FPD1; KIPP1184; PKND1; TAHCCP2. The encoded protein is an enzyme with an amino acid length of 385 and a mass of 42.9 kDa. Other isoforms may exist. PNKD is a member of the Metallo-beta-lactamase superfamily, Glyoxalase II family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.