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Mempro™ Cell-Free Integrin Production

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Creative Biostructure can provide costum Mempro™ protein production services for integrins using cell-free expression system. You can count on us all through your project.

Mempro™ cell-free protein production system is the innovated system to produce transmembrane proteins, which bypasses the limitations that encountered in cell-based production system, such as host cell toxicity, low yield and solubilization and purification using detergents. Integrins are a family of cell adhesion receptors that can bind to cell surface ligands, extracellular matrix (ECM) ligands and soluble ligands. Integrins have two main biological functions, including attaching the cell to the ECM and transducing the biological signals from the ECM to the cell. In addition, integrins are also involved in a large variety of other biological functions, such as immune patrolling, cell migration, and binding to cells by certain viruses (e.g. adenovirus, echovirus, hantavirus, and foot and mouth disease viruses).

Figure 1. The schematic diagram of integrin activation. (MBInfo)

Creative Biostructure has strong expertise in high-yield integrin production based on cell-free protein expression system, we can provide various strategies for Mempro™ cell-free protein production, including:

  • Mempro™ Cell-Free Protein Production in E. coli;
  • Mempro™ Cell-Free Protein Production in Wheat Germ;
  • Mempro™ Cell-Free Protein Production in Rabbit Reticulocyte;
  • Mempro™ Cell-Free Protein Production in Baculovirus.

Among Mempro™ cell-free membrane protein production systems, E. coli S30 extract is widely used for integrin production. Wheat germ extract can provide eukaryotic translation system for integrin expression. Baculovirus expression system from Autographa californica nucleopolyhedrovirus (AcNPV) is also a major system for integrin expression. Rabbit reticulocyte lysate is another useful tool for eukaryotic cell-free transmembrane protein expression. To select an appropriate source of the extract, many factors, such as the availability of materials, protein origin and complexity, downstream processing, etc., should be considered.

With the Mempro™ cell-free protein production platform, Creative Biostructure are capable of expressing, purifying and crystallizing integrins to perform further structural and functional studies.

One challenge associated with cell-free protein production is that degradation of the DNA by endogenous nucleases. Creative Biostructure can optimize Mempro™ cell-free protein production for integrins using plasmids due to they are circular and have no end for the exonucleases to attach.

Creative Biostructure provides other various Mempro™ membrane protein production services. Please feel free to contact us for a detailed quote.

References:
A. van der Flier and A. Sonnenberg (2001). Function and interactions of integrins. Cell Tissue Res., 305(3): 285-298.
C. Brakebusch and R. Fässler. (2003). The integrin-actin connection, an eternal love affair. EMBO J., 22(10):2324-2333.
F. Bernhard, et al. (2013). Cell-free expression - making a mark. Cur. Opin. Struct. Biol., 23: 374-380.
Y. Takada, et al., (2007). The integrins. Genome Biol., 8(5): 215.

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