Anti-DEAH-box helicase 40 antibodies are used for the immunodetection of the protein encoded by the DHX40 gene. In humans, the canonical protein has a reported length of 779 amino acid residues and a mass of 88.6 kDa. Alternative splicing is reported to yield 4 different isoforms for this protein. It is ubiquitously expressed across many tissue types. A member of the DEAD box helicase protein family, it is a suspected ATP-dependent RNA helicase. Other names for this target antigen include DEAD/H (Asp-Glu-Ala-Asp/His) box polypeptide 40 (RNA helicase), DEAH (Asp-Glu-Ala-His) box polypeptide 40, DEAH box protein 40, and probable ATP-dependent RNA helicase DHX40. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some DEAH-box helicase 40 antibodies may have been used in research and have associated citations. These antibodies are most commonly used in Western Blot experiments, among other applications.