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Sigma Aldrich Fine Chemicals Biosciences Prostate Specific Antigen
Supplier: Sigma Aldrich Fine Chemicals Biosciences P333825UG

Prostate specific antigen (PSA) is a 28.43 kDa single-chain glycoprotein containing 237 amino acids encoded by the kallikrein gene mapped to human chromosome 19. It is specifically expressed by human prostate tissue and is one of the highly abundant proteolytic enzyme expressed in the seminal fluid.
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