Anti-DEAD-box helicase 21 antibodies are used in antigen-specific immunodetection in biological samples. The target DEAD-box helicase 21 is a known alias name of the protein DExD-box helicase 21, encoded by the DDX21 gene in humans. This 783-amino acid residue protein is reported to be a RNA helicase that acts as a sensor of the transcriptional status of both RNA polymerase (Pol) I and II: promotes ribosomal RNA (rRNA) processing and transcription from polymerase II (Pol II). It is localized to the nucleus, mitochondria, and cytoplasm of the cell and features acetylated post-translational modifications. It is reported to be widely expressed in many tissue types. Indicated applications for DEAD-box helicase 21 antibodies listed below include ELISA, Western Blot, Immunocytochemistry, Immunofluorescence, Immunoprecipitation, and Immunohistochemistry.