Preparation of tau oligomers after the protein extraction from bacteria and brain cortices

Elentina K. Argyrousi, Agnieszka Staniszewski, Russell E. Nicholls, Ottavio Arancio*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic

Abstract

Oligomerization of soluble tau protein is attracting the attention of an increasingly larger number of scientists involved in research on Alzheimer’s disease and other tauopathies. A variety of methods have been developed for the purification of proteins from biological tissues and bacterial cells. Various types of high performance liquid chromatography (HPLC) and affinity tags represent the most common techniques for isolating proteins. Here, we describe a procedure for extracting recombinant tau protein from bacterial cells, utilizing a 6×His affinity tag, or endogenous tau from brain cortices using acid extraction followed by fast protein liquid chromatography (FPLC). Additionally, we introduce a method for oligomerization based on reduction and oxidation of cysteine residues. Our preparation assures high yield of tau protein, while preserving its physiological function.
Original languageEnglish
Title of host publicationAmyloid Proteins
EditorsEinar M. Sigurdsson, Miguel Calero, María Gasset
PublisherHumana Press
Pages85-97
Number of pages13
Volume1779
DOIs
Publication statusPublished - 1 Jan 2018

Publication series

SeriesMethods in Molecular Biology
Volume1779
ISSN1064-3745

Keywords

  • Affinity tag purification
  • Alzheimer’s disease
  • Fast protein liquid chromatography
  • Recombinant tau
  • Tau extraction
  • Tau oligomerization
  • Tauopathy

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