. "Reviewed: D'Eustachio, P, 2008-05-28 08:30:54"^^ . "Edited: Jassal, B, 2008-05-19 12:57:01"^^ . "Authored: Jassal, B, 2008-05-19 12:57:01"^^ . "19-hydroxyprostaglandins E1 and E2 (19-OH PGE1/2) are major components of human seminal fluid. The initial step in their formation is the 19-hydroxylation of prostaglandin H1 and H2 (PGH1/2). CYP4F8 performs this initial conversion. The example of PGH2 is used here."^^ . . . . . . . "CYP4F8 hydroxylates prostaglandin H2"^^ . . . . . . . . . . .