Prostate-specific antigen (PSA)
Definition
A serine protease glycoprotein (also called p30) secreted in high concentrations by the prostate gland into seminal plasma. The primary immunological marker for semen in forensic casework. Detected by antibody-based assays including ELISA and lateral-flow immunochromatographic strips.
Related terms
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Explained in these topics
- Immunological Methods in Sexual Assault InvestigationsA serine protease glycoprotein (also called p30) secreted in high concentrations by the prostate gland into seminal plasma. The primary immunological marker fo...
- Semen, Saliva and Other Body Fluids as EvidenceA glycoprotein produced by the prostate gland and secreted in high concentrations into seminal plasma. PSA detection confirms the presence of seminal material...