Haloacid Dehalogenase-Like Hydrolase Domain Containing 1A, or Pseudouridine 5'-phosphatase, is a human gene encoded by PUDP. It may also be known as: Pseudouridine-5'-phosphatase; Haloacid dehalogenase-like hydrolase domain-containing protein 1A; Protein GS1; Pseudouridine-5'-monophosphatase; 5'-PsiMPase; Haloacid dehalogenase-like hydrolase domain-containing protein 1; Pseudouridine-5'-phosphatase ; DXF68S1E; FAM16AX; HDHD1; HDHD1A; haloacid dehalogenase-like hydrolase domain containing 1. The encoded protein is an enzyme with an amino acid length of 228 and a mass of 25.2 kDa. Other isoforms may exist. Haloacid Dehalogenase-Like Hydrolase Domain Containing 1A is a member of the HAD-like hydrolase superfamily, CbbY/CbbZ/Gph/YieH family. Homologs of this gene exist in other organisms, including: Chicken.