Anti-DEAD box helicase 39a antibodies enable researchers to detect and measure the DEAD box helicase 39a antigen in biological samples. This target is a reported synonym of the DDX39A gene, which encodes DExD-box helicase 39A. This protein is known to function in RNA splicing, among other biological roles. The human version of DEAD box helicase 39a has a canonical amino acid length of 427 residues and a protein mass of 49.1 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the nucleus and cytoplasm of cells and notably expressed in many tissues, such as the bronchus, vagina, and adrenal gland. DEAD box helicase 39a is a member of the DEAD box helicase protein family.