Provided below are ELISA kits targeting glutamyl-prolyl-tRNA synthetase, a human protein encoded by EPRS. This protein is 1512 amino acids long, with a mass of 170.6 kDa, and is a member of the Class-I aminoacyl-tRNA synthetase family, Glutamate--tRNA ligase type 2 subfamily; Class-II aminoacyl-tRNA synthetase family. This is reported to be a cytoplasmic protein. There is a noted implication in Leukodystrophy, hypomyelinating, 15. Other alias names for this protein include: bifunctional aminoacyl-tRNA synthetase, cell proliferation-inducing gene 32 protein, glutamate tRNA ligase, proliferation-inducing gene 32 protein, and proliferation-inducing protein 32.