Anti-RSP3 antibodies are used in antigen-specific immunodetection in biological samples. The target RSP3 is a known alias name of the protein radial spoke head 3, encoded by the RSPH3 gene in humans. This 560-amino acid residue protein is known to functions as part of axonemal radial spoke complexes that play an important part in the motility of sperm and cilia (By similarity). It is localized to the cytoplasm of the cell. It is reported to be widely expressed in many tissue types.