14.6 RecA catalyzes single strand assimilation Paranemic joint describes a region in which two complementary sequences of dNa are associated side by side instead of being intertwined in a double helical structure Single-strand assimilation describes the ability of Reca protein to cause a single strand of dna to displace its homologous strand in a duplex; that is, the single strand is assimilated into the duplex 消当
Paranemic joint describes a region in which two complementary sequences of DNA are associated side by side instead of being intertwined in a double helical structure. Single-strand assimilation describes the ability of RecA protein to cause a single strand of DNA to displace its homologous strand in a duplex; that is, the single strand is assimilated into the duplex. 14.6 RecA catalyzes singlestrand assimilation
14.6 RecA catalyzes single-strand assimilation Figure 14 10 Reca promotes the assimilation of invading single strands into 请莘大 duplex dna so long as one of the reacting strands has a free end
Figure 14.10 RecA promotes the assimilation of invading single strands into duplex DNA so long as one of the reacting strands has a free end. 14.6 RecA catalyzes single-strand assimilation
14.6 RecA A duplexes pair TEENIE catalyzes single HHHHHHHH Homologous strands are nit strand assimilation Broken strands exchange Crossover point m oves by branch migration Figure 14.2 Second nicks made in same strand Second nicks made in other strand Recombination between HHHHHHHHHHHA HHHHHHHHHHHHHH HHHHHHHHHHHHH two paired duplex m DNAs could involve reciprocal single-strand HHHHH Second strands HHHHHHHH Nicks are sealed HHHHHHHHHHHHH HHH HH exchange. branch migration, and nicking innsnnnLE Genomes are not recombinant Reciprocal reco but contain heteroduplex region 请莘大
Figure 14.2 Recombination between two paired duplex DNAs could involve reciprocal single-strand exchange, branch migration, and nicking. 14.6 RecA catalyzes singlestrand assimilation
14.6 RecA catalyzes single ↓ Free strand initiates exchange strand M assimilation Displaced strand pairs with complement Figure 14.1l recA mediated strand exchange between partially duplex and entirely duplex dna HH++h generates a joint molecule with the same structure as a recombination Strand exchange is completed intermediate 请莘大 M
Figure 14.11 RecAmediated strand exchange between partially duplex and entirely duplex DNA generates a joint molecule with the same structure as a recombination intermediate. 14.6 RecA catalyzes singlestrand assimilation
14.6 RecA catalyzes single-strand assimilation Figure 14.12 RuvAtetramer RUvaB is an contacts all 4 strand asymmetric complex that promotes branch RuvB hexamer binds migration of las ring around DNA a holliday Branch migration匚 Junction 请莘大
Figure 14.12 RuvAB is an asymmetric complex that promotes branch migration of a Holliday junction. 14.6 RecA catalyzes single-strand assimilation