Review Article
Bacterial Artificial Chromosome Mutagenesis Using Recombineering
Table 1
Comparing conventional BAC modification strategies with recombineering.
| | Conventional strategies | Recombineering |
| BAC Modification Strategies | Homologous recombination: RecBCD and RecF pathways | RecE pathway: RecE, RecT (+Gam) | Site-specific integration: Integrases of different pathways (Cre, Flp) | Lambda Red pathway: Exo, Beta, Gam |
| Flexibility | Require pre-engineered or existing specific sites: Chi sites, recombinase attachment sites | Sequence independent, but need prior knowledge of target sequence |
| Homology requirement | Long homology of ~1 kb is required for efficient homologous recombination | As short as 40 bp of homology is sufficient |
| Versatility | May require specific strain backgrounds to work | Mobile systems can be easily transferred to and adapted for use in a wide range of strains and species |
| Efficiency and facileness | Low efficiency for homologous recombination | At least 50-fold higher than traditional homologous recombination | Labourious and lengthy | Can be done in days |
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