A number of ELISA Kits are available that target ubiquitin-like modifier activating enzyme 1, an alias of the protein, ubiquitin like modifier activating enzyme 1. The human protein, encoded by the gene UBA1, is an enzyme and member of the Ubiquitin-activating E1 family. The protein's cellular localization is indicated to be cytoplasmic, nuclear and mitochondrial. Additional synonyms or past names for this protein may include: A1S9, A1S9T, A1ST, AMCX1, CFAP124, GXP1, POC20, SMAX2, UBA1A, UBE1, UBE1X. Homology is conserved in other species, such as Mouse, Rat, Zebrafish.