Prokaryote
and
Eukaryote
Release
Factors -
| Release Factors | Molecular Weight | Active with Codons | GTP recognition |
| Prokaryotes | |||
| RF-1 | 44,000 | UAA, UAG | None |
| RF-2 | 47,000 | UAA, UGA | None |
| RF-3 | 46,000 | None | Yes |
| Eukaryotes | |||
| RF | 56,500 115,000 |
UAA, UAG,UGA | Yes |