Two classes of genetic recombination for DNA rearrangement: Conservative site-specific recombination (CSSRE recombination between two defined sequence elements Transpositional recombination (Transposition: recombination between specific sequences and nonspecific DNA sites
Two classes of genetic recombination for DNA rearrangement: • Conservative site-specific recombination (CSSR): recombination between two defined sequence elements • Transpositional recombination (Transposition): recombination between specific sequences and nonspecific DNA sites
Figure 11-1 B site-specific recombination sites recombination transposable element transposition Copyright o 2004 Pearson Education, Inc, publishing as Benjamin Cummings
Figure 11-1
OUTLINE 1. Conservative Site-Specific Recombination 2. Biological Roles of Site-Specific Recombination(n phage integration/excision multimeric genome resolution 3. Transposition concepts, learning from B McClintock, DNa tranposons. Viral-like retrotransposons/retroviruses, poly-A retrotransposons)
OUTLINE 1. Conservative Site-Specific Recombination 2. Biological Roles of Site-Specific Recombination (l phage integration/excision, multimeric genome resolution) 3. Transposition ( concepts, learning from B. McClintock, DNA tranposons. Viral-like retrotransposons/retroviruses, poly-A retrotransposons)
Topic 1: Conservative Site- Specific Recombination 1. Exchange of non-homologous sequences at specific DNA sites (what 2. Mediated by proteins that recognize specific DNA sequences. (how)
Topic 1: Conservative SiteSpecific Recombination 1.Exchange of non-homologous sequences at specific DNA sites(what) 2.Mediated by proteins that recognize specific DNA sequences. (how)
1-1 Site-specific recombination occurs at 2 specific DNA sequences in the target DNA a CSSR(conserved site-specific recombination)is responsible o for many reactions in which a 8 defined segment of dNa is rearranged
◼ CSSR (conserved site-specific recombination) is responsible for many reactions in which a defined segment of DNA is rearranged. Conservative Site -Specific Recombination 1-1 Site-specific recombination occurs at specific DNA sequences in the target DNA