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Bernard R. Glick Molecular Biotechnology Text: Molecular Biotechnology B.R. Glick, J.J. Pasternak and C.L. Patten ASM Press, Fourth Edition. Biotech Companies Worldwide. in 2004. Fundamentals of recombinant DNA technology. Overview of recombinant DNA cloning procedure. Plasmid pBR322.
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Bernard R. Glick Molecular Biotechnology Text:Molecular BiotechnologyB.R. Glick, J.J. Pasternak and C.L. PattenASM Press, Fourth Edition
Biotech Companies Worldwide in 2004
Plasmid pBR322 Strategy for selecting E. coli cells transformed with pBR322
pBR322 Francisco Bolivar Raymond Rodriguez
Screening a gene library with a labeled DNA probe (colony hybridization)
Immunological screening of a gene library (colony immunoassay)
Tripartite conjugation Electroporation
The chemical synthesis of DNA Gobind Khorana
PCR amplification of full length cDNA. The terminal transferase activity of reverse transcriptase adds mostly dCs to the ends of each full length first strand cDNA
Addition of a disulfide bond between the N and C termini of B. circulans xylanase stabilizes the protein. The activity at room temperature is doubled and it is largely protected against inactivation at high temperature
Engineering a calcium-independent subtilisn. Native enzyme loses its activity when the calcium-binding loop is deleted. After random mutagenesis, several mutants with low activity are isolated. These are combined into one mutant construct with high activity.
Altering multiple enzyme properties at once. Start with multiple copies of a Bacillus subtilisn gene. Error-prone PCR and then DNA shuffling. Test for high activity at room temp and then stability at high temp