
PGP9.5isasolublecytoplasmicproteinwithamolecularweightofapproximately25,000kD.Itispresentinneuronsandincellsofthediffuseneuroendocrinesystem.PGP9.5functionsasatissue-specificubiquitincarboxylterminalhydrolaseisoenzyme.ThisenzymeisalsoknownasUCH-L1.Becauseofitsabundanceinnerves,ithasbeenwidelyusedasaMarkerforperipheralnervefibers.
It wasalsodiscoveredasagenemutatedinsomerarefamialformsofParkinsonsdisease.InterestinglyacommonallelicvariantofUCHL1,theS18YpolymorphismisactuallyprotectiveagainstParkinsonsdisease.Itisalsoamarkerfor cellsofthediffuseneuroendocrinesystemandtheirtumors.
PGP9.5176-191CustomerPublications