The development of effective overproduction and purification approaches for ExuR transcription factor of Escherichia coli using affine chromatography

  • Anna V. Potapova master student of educational centre «Cell Biology» Pushchino State Institute of Natural Sciences, engineer in the laboratory of Functional genomics and cellular stress, Institute of Cell Biophysics RAS, Pushchino, Moscow region, e-mail: annapotapova1991@gmail.com
  • Olga N. Ozoline Dr.Sci., professor, Head of the laboratory of Functional genomics and cellular stress, Institute of Cell Biophysics RAS, Pushchino, e-mail.: ozoline@rambler.ru
  • Maria N. Tutukina PhD in Molecular biology, senior research scientist in the laboratory of Functional genomics and cellular stress, Institute of Cell Biophysics RAS, Pushchino, email: masha306@gmail.com
Keywords: affine chromatography, cloning, transcription factors, ExuR, E. coli.

Abstract

A method for isolation and purification of the recombinant ExuR protein from Escherichia coli was
developed. Process includes cloning of the exuR gene into pGEMEX1 vector, followed by overproduction of
soluble protein in BL21 *(DE3) E. coli cells and a series of affine chromatography cycles on a column with
Ni-NTA agarose charged with nickel sulfate. This approach allows obtaining of electrophoretically
homogenious and functionally active ExuR protein for further investigation.

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Published
2019-11-19
How to Cite
Potapova, A. V., Ozoline, O. N., & Tutukina, M. N. (2019). The development of effective overproduction and purification approaches for ExuR transcription factor of Escherichia coli using affine chromatography. Sorbtsionnye I Khromatograficheskie Protsessy, 14(3). Retrieved from https://journals.vsu.ru/sorpchrom/article/view/1500