Table 1.
Mechanical properties of ubiquitin and SUMO proteins
| Protein | Change in contour length (nm)*† | Unfolding force (pN)‡ | Δxu(nm) | ku0(s−1) | ΔG# (kBT) | ks(N/m) | ||
|---|---|---|---|---|---|---|---|---|
| Ubiquitin | 23.9 ± 1.2 (n = 190) | 188 ± 2 | 0.19§ | 0.15 ± 0.01¶ | 8 × 10−3§ | 0.45 ± 0.12¶ | 25.5 | 5.8 |
| SUMO1 | 24.1 ± 0.9 (n = 655) | 129 ± 0.8 | 0.51§ | 0.51 ± 0.04¶ | 1.15 × 10−5§ | 1.8 × 10−4 ±1.6 × 10−4¶ | 32.1 | 1.0 |
| SUMO2 | 24.1 ± 1.3 (n = 386) | 122 ± 1 | 0.33§ | 0.28 ± 0.02¶ | 5 × 10−3§ | 0.32 ± 0.19¶ | 26.1 | 2.0 |
*
Mean ± SD.
†
The n in the parentheses is the number of events used in the data analysis.
‡
Mean ± SE.
§
From Monte Carlo simulation.
¶
From Bell-Evans-Ritchie approximation.