PITK is an alias for the gene, Ankyrin repeat domain 28, in humans. Other names include: Serine/threonine-protein phosphatase 6 regulatory ankyrin repeat subunit A; PP6-ARS-A; Serine/threonine-protein phosphatase 6 regulatory subunit ARS-A; Ankyrin repeat domain-containing protein 28; Phosphatase interactor targeting protein hnRNP K; phosphatase interactor targeting K protein; protein phosphatase 6 ankyrin repeat subunit A; protein phosphatase 1, regulatory subunit 65; PPP1R65. The encoded protein has an amino acid length of 1053 and a mass of 113.0 kDa. Other isoforms may exist. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.