Detection of Rat Oncomodulin by Western Blot. Western blot shows lysates of rat placenta tissue. PVDF Membrane was probed with 1 µg/mL of Rat Oncomodulin Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6345) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for Oncomodulin at approximately 12 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.
Preparation and Storage
Sterile PBS to a final concentration of 0.2 mg/mL.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Oncomodulin (OM; also parvalbumin beta) is a 12 - 14 kDa member of the parvalbumin family of Ca++binding proteins. It is expressed in early embryonic cells, placenta, and in tumors. OM was originally thought to have expression restricted to neoplastic tissues, early embryonic cells and certain tumor cell lines. Recent research shows that oncomodulin is also expressed and secreted by macrophages where, in the retina, it binds to retinal ganglion cells (RGCs) and functions to promote axon regenerationin early embryonic cells, placenta, and in tumors. OM is both cytoplasmic, and secreted. Rat OM is 109 amino acids (aa) in length. It contains a vestigial Ca++binding site (aa 733) and two EF hand domains, the latter of which contains one highaffinity Ca++binding site (aa 78108). Relative to parvalbumin alpha, OM has a lower pI (<4.8), a higher affinity for Ca++, and they share only 50% aa identity. Full length rat OM shares 95% and 89% aa identity with mouse and human OM, respectively.
The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.