Fast Screening of Tobacco Leaves for Recombinant Protein Expression

28 Mar 2014

Protein expression in plants is affected by many factors. For instance, in specific environmental conditions, some proteins are under or over-expressed by certain plants or in certain plant organs. In this application note, the objective is the fast screening of Tobacco plants to select the best producers of a recombinant protein used for allergic patients’ desensitization.

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Genome AnalysisGenomics, the study of genomes, includes functional genomics, evolutionary genomics and comparative genomics. There are many genomic technologies such as DNA sequencing of whole genomes, computational biology and bioinformatics. DNA and nucleic acids must be isolated and concentrated from cells for analysis with kits, automated analyzers and software. Other useful technologies for studying genomics include PCR, microarrays and electrophoresis.ProteomicsProteomics is the systemic bioinformatics study of proteins and amino acids, including their structure, size, function and identification. Tools used in proteomics include chromatography, blotting and gels, protein arrays, mass spectrometry and ELISA and associated analysis software. Analyzers and proteomic systems should be sensitive, high resolution, fast and may be automated for high-throughput.Protein PurificationProtein purification is a vital step in drug discovery, therapeutics, biotech and life science research. The purification process typically involves subcellular or membrane protein extraction with cell lysis kits, separation of proteins from cell debris by filtration or spin columns, and the isolation of proteins of interest from other proteins and impurities with affinity purification (including fusion protein tags and antibody binding proteins A, G and L), immunoprecipitation or chromatographic methods, such as ion exchange, size exclusion and immobilized metal affinity chromatography. All purification methods come in multiple formats for your laboratory needs, including agarose or magnetic beads, resins, columns and filter plates. Find the best protein purification equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Environmental Monitoring and TestingEnvironmental monitoring and testing uses handheld portable analyzers, kits, spectrometers or chromatography systems for air, water, soil, food and other sample testing. Useful features of analyzers such as BOD and COD include portability, easy calibration, automation and sensitivity.  Environmental test kits for pH, water, moisture, etc, should be accurate, sensitive, reliable, fast and easy to use.Protein ExpressionProtein expression is the utilization of cell machinery for the synthesis of proteins and has become a critical tool in biotherapeutic, genomic, and proteomic research. Produce recombinant proteins with expression vectors in combination with a host cell suitable for high-level protein expression. For production of toxic proteins, consider cell-free expression vectors. Create and monitor post-translational modifications with protein modification kits. Find the best protein expression products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Tobacco LeavesProtein Recombination