Krt19 encodes the human gene, Keratin 19, type I. It may also be known as: Keratin, type I cytoskeletal 19; Cytokeratin-19; CK-19; Keratin-19; K19; keratin, type I, 40-kd; cytokeratin 19; 40-kDa keratin intermediate filament; CK19; K1CS. The encoded protein has an amino acid length of 400 and a mass of 44.1 kDa. Krt19 is a member of the Intermediate filament family. Homologs of this gene exist in other organisms, including: Mouse, Chicken.