Difference between revisions of "Golden Gate Assembly protocol"
Macampbell (talk | contribs) |
Macampbell (talk | contribs) |
||
| Line 3: | Line 3: | ||
First, you need to dilute your assembled oligos. To do this, dilute them 200 fold. <br> | First, you need to dilute your assembled oligos. To do this, dilute them 200 fold. <br> | ||
The easiest way to do this is to remove 2 µL from the 20 µL overnight mixture and place this 2 µL into a new, small microfuge tube. <br> | The easiest way to do this is to remove 2 µL from the 20 µL overnight mixture and place this 2 µL into a new, small microfuge tube. <br> | ||
| − | Now add 398 µL water to the 2 µL of cooled, annealed ologs. Mix this by | + | Now add 398 µL water to the 2 µL of cooled, annealed ologs. Mix this by stirring the tube with a yellow tip. <br> <br> |
Get '''two''' new, small microfuge tubes designed to fit into the PCR machine. <br> | Get '''two''' new, small microfuge tubes designed to fit into the PCR machine. <br> | ||
Revision as of 20:56, 2 September 2011
Protocol to insert new promoter made from oligos into pSB1A2 with insert BBa_J100028
First, you need to dilute your assembled oligos. To do this, dilute them 200 fold.
The easiest way to do this is to remove 2 µL from the 20 µL overnight mixture and place this 2 µL into a new, small microfuge tube.
Now add 398 µL water to the 2 µL of cooled, annealed ologs. Mix this by stirring the tube with a yellow tip.
Get two new, small microfuge tubes designed to fit into the PCR machine.
One tube will be labeled "ligation", the other "plasmid only".
1 µL diluted oligos cooled overnight (leave this out for plasmid only)
1 µL (10-20 ng) pSB1A2+J100028
5 µL dH2O (6 µL for plasmid only)
1 µL 10X Promega Ligase Buffer
1 µL 500 mM NaCl
0.5 µL Bsa I high fidelity (HF) restriction enzyme
0.5 µL T4 DNA Ligase
10 µL final volume (be sure to perform a negative control ligation)
Turn on the PCR machine. Put both of your tubes into the machine.
Program it for the following cylces:
40 cycles of 37C for 1 minutes/16C for 1 minutes
1 cycle of 37C for 5 minutes
80C for 15 minutes
22C holding temperature
This DNA ligation is ready for transformation.
Transformations
Use all 10 µL of the ligations for a transformation.
You will want to do a negative control where you leave out the assembled oligos and add one more microliter of water.
You will also want to perform a positive control of K315008 which contains pLacI+RBS+RFP in plasmid pSB1A2.
Take one tube of 100 µL competent cells and use 30 µL of cells for each of the three transformations listed above. Plate all three transformations on LB amp plates.
This protocols was developed at MWSU by Dr. Todd Eckdahl, and modified at Davidson College by students in Biology 111 and Romina Clemente.
