Prostate Specific Antigen (PSA) Ag >96%-Liquid

PSA (Prostate Specific Antigen) is a kallikrein-like serine protease secreted by prostate epithelial cells and serves as one of the most studied biomarkers in prostate cancer research. This purified antigen preparation from Antibodies.com is supplied as a ready-to-use liquid at >96% purity, removing the need for solubilization steps that can disrupt native folding and activity.

The 1mg format suits method development, calibration curve generation, and immunoassay standardization rather than single-experiment consumption. Researchers commonly deploy this reagent as an immunogen for monoclonal and polyclonal antibody production, as a coating or reference standard in ELISA workflows, and as a positive control band on Western Blot membranes when characterizing anti-PSA antibodies or probing prostate-derived samples.

Provided in liquid format, the antigen integrates directly into existing buffer systems. As a Prostate Specific target reagent, it supports studies of KLK3 expression, prostate cancer diagnostic development, and validation of clinical PSA immunoassays. Storage conditions stated on the accompanying product documentation preserve the >96% purity benchmark over the working shelf life, and aliquoting upon first use limits freeze-thaw cycles that can degrade protein integrity.

Working concentration should be optimized empirically for each application: coating densities for ELISA, loading mass for SDS-PAGE and Western Blot, and immunization dose for antibody production all require different ranges. Pairing this antigen with a matched detection antibody from Antibodies.com enables consistent two-site detection configurations, while its use as a spike-in standard helps quantify endogenous PSA in cell lysates, seminal plasma, or conditioned media from prostate cell lines.