title: Expression of human interleukin-17 in Pichia pastoris: purification and characterization.
abstract: A Pichia pastoris expression clone has been developed to produce the human cytokine interleukin-17 (hIL-17). Characterization of purified recombinant hIL-17 made with this clone demonstrated that it shared many characteristics with hIL-17 produced in mammalian cells. The hIL-17 produced in Pichia had the correct N-terminus of natural mature hIL-17 and a glycosylation pattern similar to hIL-17 produced in mammalian cells; both Pichia and human cells add approximately 5 kDa of sugars via N-linked glycosylation and both express a mixture of the glycosylated and nonglycosylated forms. Gel filtration provides evidence that the Pichia produced hIL-17 exists as a dimer in solution. A combination of cation-exchange and gel-filtration chromatography yielded 3.5 mg of highly purified and biologically active hIL-17 from a 10-liter fermentation. These results show that P. pastoris is a useful system to produce recombinant hIL-17 in structure/function studies of this molecule.
authors.affiliation: Endogen, Inc., Woburn, Massachusetts 01801-1059, USA.
authors.forename: K P
authors.initials: KP
authors.lastname: Murphy
authors.forename: P
authors.initials: P
authors.lastname: Gagne
authors.forename: C
authors.initials: C
authors.lastname: Pazmany
authors.forename: M D
authors.initials: MD
authors.lastname: Moody
mesh_terms: D000581:Amidohydrolases / Q000378:metabolism; D001483:Base Sequence; D016207:Cytokines / Q000096:biosynthesis / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D017931:DNA Primers / Q000737:chemistry; D019281:Dimerization; D004305:Dose-Response Relationship, Drug; D004591:Electrophoresis, Polyacrylamide Gel; D005347:Fibroblasts / Q000378:metabolism; D006023:Glycoproteins / Q000096:biosynthesis* / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D006801:Humans; D020381:Interleukin-17; D015850:Interleukin-6 / Q000378:metabolism; D007378:Interleukins / Q000096:biosynthesis* / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D008969:Molecular Sequence Data; D043524:Peptide-N4-(N-acetyl-beta-glucosaminyl) Asparagine Amidase; D010843:Pichia / Q000235:genetics / Q000378:metabolism; D016133:Polymerase Chain Reaction; D011994:Recombinant Proteins / Q000096:biosynthesis / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism
chemical_list: D016207:Cytokines; D017931:DNA Primers; D006023:Glycoproteins; D020381:Interleukin-17; D015850:Interleukin-6; D007378:Interleukins; D011994:Recombinant Proteins; D000581:Amidohydrolases; D043524:Peptide-N4-(N-acetyl-beta-glucosaminyl) Asparagine Amidase