What is a prostate?
This walnut-sized gland is a crucial part of the male reproductive system, serving an important sexual function. Found at the base of your bladder, the prostate gland surrounds the urethra, which is the tube that carries urine from the bladder to the male reproductive organ. The prostate gland secretes some of the seminal fluid that's combined with sperm during ejaculation. This fluid acts as both a lubricant, helping to prevent infection in the urethra, and as a booster, protecting and energizing the sperm. Protecting the health of the prostate should be a priority for all men.
Beta microseminoprotein is not a prostate-specific protein. Its identification in mucous glands and secretions.
Beta microseminoprotein (beta inhibin, PSP94), an unglycosylated protein of 94 amino acids with unknown function, is one of the predominating proteins in the secretion of the human prostate gland.
According to radioimmunoassay, beta microseminoprotein immunoreactivity is present in many nonprostatic body fluids.
According to gel chromatography, the molecular size of the beta microseminoprotein immunoreactivity present in tracheal fluid, gastric juice, and secretion from the uterine cervix did not differ from that of beta microseminoprotein in seminal plasma. The beta microseminoprotein immunoreactive component present in gastric juice had the same amino-terminal amino acid sequence as prostatic beta microseminoprotein (14 residues identified in material purified from gastric juice), providing further evidence for chemical identity of a nonprostatic beta microseminoprotein with the prostatic protein.
The pattern of tissue distribution of beta microseminoprotein found in this work indicates a connection of beta microseminoprotein with mucous secretions.
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