Table 2.
Enzyme cleavage activities of truncated substrate peptides
Substrate | Sequencea | Apparent kcat/Km (mM−1 min−1)b | (kcat/Km)rel |
---|---|---|---|
S12 | SAVLQ ↓ SGF-CONH2 | 7.85 ± 0.30 | 1.00 |
S13 | AVLQ ↓ SG-CONH2 | 1.19 ± 0.03 | 0.152 |
S14 | VLQ ↓ SG-CONH2 | 0.148 ± 0.006 | 0.0189 |
S15 | AVLQ ↓ S-CONH2 | 1.01 ± 0.02 | 0.129 |
S16 | VLQ ↓ S-CONH2 | 0.131 ± 0.006 | 0.0167 |
S17 | AVLQ ↓ SGF-CONH2 | 5.99 ± 0.08 | 0.763 |
S18 | LQ ↓ SG-CONH2 | 0.013 ± 0.004 | 0.0017 |
Cleavage sites are indicated by ↓.
The concentration of SARS 3C-like proteinase is 7.41 μM.