Editing Prostate-specific antigen (section)

==Biochemistry==

Prostate-specific antigen (PSA, also known as kallikrein III, seminin, semenogelase, γ-seminoprotein and P-30 antigen) is a 34-[[Atomic mass unit|kD]] [[glycoprotein]] produced almost exclusively by the [[prostate gland]]. It is a [[serine protease]] ({{EC number|3.4.21.77}}) [[enzyme]], the [[gene]] of which is located on the 19th [[chromosome]] (19q13) in humans.<ref name="Lilja-2003">{{cite journal | vauthors = Lilja H | title = Biology of prostate-specific antigen | journal = Urology | volume = 62 | issue = 5 Suppl 1 | pages = 27–33 | date = November 2003 | pmid = 14607215 | doi = 10.1016/S0090-4295(03)00775-1 }}</ref>