Figure 5From: Factors acting on Mos1 transposition efficiencyImpact of the temperature on Mos1 transposition. (a) Effect of the temperature (horizontal axis) on the transposition efficiency (vertical axis). In vitro assays were performed using two plasmids (pET-3Tet3 as the transposon donor, and pBC-SK+ as the target for integration) and purified MBP-MOS1. Two different shapes of pBC-3Tet3 were used: the super-helical form (gray bars) and that linearized with Nco I (empty bars). (b) Effect of temperature on the excision. Time course analyses were done using super coiled pBC-3Tet3 as pseudo-Mos1 and purified MBP-MOS1. The assays were performed at 30°C (top panel) or 37°C (bottom panel) and the resulting products were loaded onto BET-stained agarose gel. Molecular weight markers are indicated in the left margin. The various products are depicted on the right and their positions on the gel are indicated. OC: open circle; Lin: linear; SC: super coiled; 3Tet3: excised transposon. On the top panel (30°C) the expected position of 3Tet3 is pointed out, but the corresponding product is not detected. Asterisks indicate the integration products, determined according to [38] and personal data.Back to article page