There are a number of ELISA Kits available for the measurement of polymerase (DNA directed), alpha 1, another term for the human protein, DNA polymerase alpha 1, catalytic subunit. Other synonyms may include: DNA polymerase alpha catalytic subunit, DNA polymerase alpha catalytic subunit p180, polymerase (DNA directed) alpha 1 catalytic subunit, polymerase (DNA) alpha 1 catalytic subunit, NSX, POLA, and p180. It is encoded by the POLA1 gene to yield a protein 1462 amino acids in length and 165.9 kDa in size. The protein, an enzyme, is categorized into the DNA polymerase type-B family. Versions of polymerase (DNA directed), alpha 1 are present in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.