| Component | Amount per reaction (μl) | Final | 
|---|---|---|
| 5xPCR buffer | 5 | 1x | 
| 5 M Betaine | 5 | 1 M | 
| 10 mM dNTPs | 0.5 | 200 nM | 
| Template from previous PCR | 3 | |
| H2O | to 25 μl | |
| Polymerase (2U/μl) | 0.5 | 1U | 
| 2.5 μM each pDONR221_attb1 + pDONR221_attB2 | 2.5 each | 250 nM each | 
| Component | Amount per reaction (μl) | Final | 
|---|---|---|
| 5xPCR buffer | 5 | 1x | 
| 5 M Betaine | 5 | 1 M | 
| 10 mM dNTPs | 0.5 | 200 nM | 
| Template from previous PCR | 3 | |
| H2O | to 25 μl | |
| Polymerase (2U/μl) | 0.5 | 1U | 
| 2.5 μM each pDONR221_attb1 + pDONR221_attB2 | 2.5 each | 250 nM each |