| 10x RT buffer | 2 μl |
| 25x dNTPs (100 mM) | 0.8 μl |
| 10x RT random primers | 2 μl |
| RNase inhibitor at 1 U/μl | 1 μl |
| Nuclease-free H2O | 3.2 μl |
| MultiScribe reverse transcriptase | 1 μl |
| 10x RT buffer | 2 μl |
| 25x dNTPs (100 mM) | 0.8 μl |
| 10x RT random primers | 2 μl |
| RNase inhibitor at 1 U/μl | 1 μl |
| Nuclease-free H2O | 3.2 μl |
| MultiScribe reverse transcriptase | 1 μl |