In vitro renaturation of proteins from inclusion bodies
Journal Title: Advances in Hygiene and Experimental Medicine - Year 2012, Vol 66, Issue 0
Abstract
Recombinant proteins and enzymes are commonly used in many areas of our life, such as diagnostics, industry and medicine, due to heterologous synthesis in prokaryotic expression systems. However, a high expression level of foreign protein in bacteria cells results in formation of inactive and insoluble aggregates – inclusion bodies. Reactivation of aggregated proteins is a complex and time-consuming process. Every protein requires experimental optimization of the process conditions. The choice of the refolding method depends on the type of recombinant protein and its physical, chemical and biological properties. Recovery of the activity of proteins accumulated in inclusion bodies can be divided into 4 steps: 1) inclusion bodies isolation, 2) solubilization of aggregates, 3) renaturation, 4) purification of catalytically active molecules. Efficiency of the refolding process depends on many physical factors and chemical and biological agents. The above parameters determine the time of the folding and prevent protein aggregation. They also assist the folding and have an influence on the solubility and stability of native molecules. To date, dilution, dialysis and chromatography are the most often used methods for protein refolding.
Authors and Affiliations
Dorota Porowińska, Ewelina Marszałek, Paulina Wardęcka, Michał Komoszyński
Keywords
Related Articles
- EP ID EP66699
- DOI -
- Views 144
- Downloads 0
Poszukiwanie genetycznego i psychospołecznego podłoża uzależnienia od benzodiazepin. Analiza w oparciu o wyniki pracy własnej
Noncovalent cation-π interactions – their role in nature
Non-covalent interactions play an extremely important role in organisms. The main non-covalent interactions in nature are: ion-ion interactions, dipole-dipole interactions, hydrogen bonds, and van der Waals interactions....
Antigen presenting cells costimulatory signaling during pre-implantation pregnancy
Success of pregnancy depends on many factors. Three phenomena inducing immune tolerance against semi-allogeneic conceptus may play a crucial role in the pre-implantation period of pregnancy: influence of sex hormones in...
Serum carnitine concentration is decreased in patients with Lyme borreliosis
Background: Lyme borreliosis (LB) is a serious infectious disease. Carnitine plays a crucial role in metabolism and inflammatory responses. Carnitine may be important in improving neuronal dysfunction and loss of neurons...
Acridines as antitumor drugs
Acridines belong to a group of polycyclic heteroaromatic compounds and exhibit a broad spectrum of biological activity including antiprotozoal, antibacterial, antiviral and antitumor activity. Acridine derivatives with...