Prostate Specific Antigen
Prostate specific antigen (PSA) is a 34 kD protein belonging to the kallikrein family of serine proteases and was originally isolated and purified from human seminal plasma. It was found to be immunologically identical and biologically similar to a protein isolated from the prostate gland. PSA is distinct from prostatic acid phosphatase.Low levels of expression of PSA have been reported in non-prostatic tissues and tumors such as breast carcinomas.
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|PA0431||7ml PSA Bond RTU Primary|