title: Placental protein 5 (PP5)-like immunoreactivity in human urine.
abstract: Placental protein 5 (PP5)-like immunoreactive material was detected in human male urine in small concentrations (17-60 pg/ml). Part of the PP5 immunoreactivity in the urine had a molecular weight of 36 000-42 500, which is the molecular weight of purified PP5 from the human placenta. In radioimmunoassay, serial dilutions of the 36 000-42 500 molecular weight material gave an inhibition curve parallel to that of the PP5 standard. The source of PP5-like immunoreactivity in the urine is not known. It may be related to urokinase, which coeluted with PP5-immunoreactive material in gel filtration.
mesh_terms: D002850:Chromatography, Gel; D006023:Glycoproteins; D006801:Humans; D008297:Male; D008970:Molecular Weight; D011257:Pregnancy Proteins / Q000276:immunology / Q000652:urine*; D011863:Radioimmunoassay; D014568:Urokinase-Type Plasminogen Activator / Q000652:urine
chemical_list: D006023:Glycoproteins; D011257:Pregnancy Proteins; C021240:tissue-factor-pathway inhibitor 2; D014568:Urokinase-Type Plasminogen Activator