118 resultados para GroES
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Soitinnus: viulu, orkesteri.
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Soitinnus: orkesteri.
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Iron is an essential metal for all living organisms. However, iron homeostasis needs to be tightly controlled since iron can mediate the production of reactive oxygen species, which can damage cell components and compromise the integrity and/or cause DNA mutations, ultimately leading to cancer. In eukaryotes, iron-regulatory protein 1 (IRP1) plays a central role in the control of intracellular iron homeostasis. This occurs by interaction of IRP1 with iron-responsive element regions at 5' of ferritin mRNA and 3' of transferrin mRNA which, respectively, represses translation and increases mRNA stability. We have expressed IRP1 using the plasmid pT7-His-hIRP1, which codifies for human IRP1 attached to an NH2-terminal 6-His tag. IRP1 was expressed in Escherichia coli using the strategy of co-expressing chaperonins GroES and GroEL, in order to circumvent inclusion body formation and increase the yield of soluble protein. The protein co-expressed with these chaperonins was obtained mostly in the soluble form, which greatly increased the efficiency of protein purification. Metal affinity and FPLC ion exchange chromatography were used in order to obtain highly purified IRP1. Purified protein was biologically active, as assessed by electrophoretic mobility shift assay, and could be converted to the cytoplasmic aconitase form. These results corroborate previous studies, which suggest the use of folding catalysts as a powerful strategy to increase protein solubility when expressing heterologous proteins in E. coli.
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Welsch (Projektbearbeiter): Parodie auf reaktionäre politische Auffassungen: "... von dem 23. August datirt die Aera der ächten der durch das Gesetz geschützten und verbürgten Freiheit" ... "... sammelt Euch als ein Freischärlein und zieht dem edlen Czar zu Hülfe, rettet seinen absoluten Thron, der schon etwas zu wackelen beginnt"
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M. Z.
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H. B.
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Aufs neue zum Druck befördert von Carl Traugott Wolf, Churfürstl. Hof-Böttger allda
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von J. Haydn
Das hohe Lied vom Leben und Sterben : für Einzelstimmen, gemischten Chor, großes Orchester und Orgel
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von Waldemar von Baußnern
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Lothar
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von Aloys Schmitt
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von Aloys Schmitt