SPACA9 ELISA kits are immunoassay tools for the measurement of the protein sperm acrosome associated 9, which is encoded by the SPACA9 gene in humans. Functionally, this protein is a known microtubule inner protein (MIP) part of the dynein-decorated doublet microtubules (DMTs) of multiciliated respiratory cells and the distal singlet microtubules of monoflagellated spermatozoa. The canonical protein structure is reported to have an amino acid sequence of 222 residues and a mass of 25.2 kDa. It is known to be localized in the nucleus, cytoplasmic vesicles, and cytoplasm. As many as 2 protein isoforms have been reported. Other alias names for this target include Mast, sperm acrosome-associated protein 9, Rsb66 homolog, and C9orf9. Click on the products below for more detailed ELISA kit information, such as target reactivity and assay sensitivity.