Anti-radial spoke 3 homolog antibodies enable researchers to detect and measure the radial spoke 3 homolog antigen in biological samples. This target is a reported synonym of the RSPH3 gene, which encodes radial spoke head 3. This 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). The human version of radial spoke 3 homolog has a canonical amino acid length of 560 residues and a protein mass of 63.7 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cytoplasm of cells and widely expressed in many tissue types. radial spoke 3 homolog is a member of the Flagellar radial spoke RSP3 protein family.