Ready-to-use ELISA kits are available for the detection of Granulin, an alias of the protein, granulin precursor. The official gene symbol is GRN. The kits can detect several species variants of the protein, including: human, mouse, rat, bovine, chicken, primate, guinea pig, fish, plant, and other mammalian. The protein, with a mass of 63.5 kDa and length of 593 residues, is reported to be secreted. It is a member of the Granulin family and may be known by other names, including: granulin-epithelin, glycoprotein of 88 Kda, epithelin, acrogranin, PC cell-derived growth factor, and progranulin, and proepithelin.