摘要:
The invention concerns a method for inducing somatic mutations in vitro or ex vivo, comprising (1): adding to the cells to be mutated, in culture conditions and in a medium suited to said cells, of at least a combination of anti-IgM and anti-CD19 and/or anti-DC21 antibodies, while (2) said anti-IgM antibodies are biotinylated and are subjected to specific aggregation by streptavidin coupled with a support. Advantageously, the mutations are controlled and/or adjusted by inhibiting and reactivating and/or stimulating DNA polymerase pol iota. The invention is in particular applicable to rapid and controlled induction of mutations on the BL2 Burkitt's lymphoma.
摘要:
The present invention relates to in vivo methods for generating and detecting recombinant DNA sequences in bacteriophages or plasmids containing bacteriophage sequences, methods for generating hybrid genes and hybrid proteins encoded by these hybrid genes by the use of bacteriophages and plasmids containing bacteriophage sequences, bacteriophages and plasmids that can be used in these methods, and kits comprising appropriate bacterial host cells and bacteriophages or plasmids. DNA sequences for which these methods are relevant include protein-encoding and non-coding sequences.
摘要:
The present invention relates to a method for modifying the genome of eukaryotic cells by homologous recombination using DNA sequences which substantially differ from the target locus with respect to the nucleotide sequence (0.1 to 30 % divergence) in the region where recombination takes place. Homologous recombination between diverged sequences is achieved by genetic or transitory inactivation of the cell's mismatch repair system.
摘要:
The present invention relates to a process for allowing homologous recombination between non-identical DNA sequences of an organism and various applications thereof.
摘要:
The present invention relates to processes for reducing the spontaneous mutation frequencies in cells or organisms and for producing such cells and organisms, to cells and/or organisms with reduced spontaneous mutation frequencies and to processes for the generation of expression systems for proteins, for the production of proteins and for the production of fermentation products by using cells with reduced spontaneous mutation frequencies.
摘要:
The present invention relates in general to methods for generating and detecting recombinant DNA sequences in prokaryotic cells, in particular bacteria, by using two different extrachromosomal elements and extrachromosomal elements, in particular plasmids that can be used for conducting the inventive methods. DNA sequences for which these methods are relevant include protein-encoding and non-coding sequences.
摘要:
The present invention relates to methods for generating and detecting recombinant DNA sequences in Saccharomyces cerevisiae and plasmids and Saccharomyces cerevisiae cells used for conducting the inventive methods.