Description_x000D_ General description_x000D_ Minor vault protein 193 is also known as poly (ADP-ribose) polymerase family member 4 (PARP4). Along with two other proteins, it is part of vaults (ribonucleoprotein particles present in the cytoplasm). The molecular weight of this protein is 193kDa._x000D_ Specificity_x000D_ Reacts with an internal epitope (aa 506-510, VALGK) of p193._x000D_ Immunogen_x000D_ E. coli lysate transformed with the pET28a(+) expression vector containing amino acids 408-611 of the p193 cDNA._x000D_ Physical form_x000D_ Supplied in serum-free culture medium containing 0.7% bovine serum albulin and 0.1% sodium azide._x000D_ Biochem/physiol Actions_x000D_ Minor vault protein 193 is highly expressed in tumors.