Table 2. Thermodynamic parameters of denaturation for EcCutA1_0SH mutants at the denaturation temperature (113.2 oC) of Ec0VV.
ΔH | TΔS | ΔG (=ΔΔG) | ΔΔH | TΔΔS | ||||||
---|---|---|---|---|---|---|---|---|---|---|
a* | b* | a | b | a | b | a | b | a | b | |
EcCutA1_0SH | 1175 | 1254 | 1255 | 1336 | −80 | −82 | −394 | −315 | −314 | −233 |
EcCutA1_0SH_S11V | 1396 | 1440 | 1434 | 1478 | −38 | −38 | −173 | −129 | −135 | −91 |
EcCutA1_0SH_E61V | 1340 | 1377 | 1382 | 1419 | −42 | −42 | −229 | −192 | −187 | −150 |
Ec0VV | 1569 | 1569 | 1569 | 1569 | 0 | 0 | 0 | 0 | 0 | 0 |
Ec0VV_A39D | 1265 | 1289 | 1290 | 1315 | −26 | −26 | −304 | −280 | −279 | −254 |
Ec0VV_S48 K | 1181 | 1184 | 1184 | 1187 | −3 | −3 | −388 | −385 | −385 | −382 |
Ec0VV_A39D/S48 K | 1375 | 1358 | 1356 | 1340 | 18 | 18 | −194 | −211 | −213 | −229 |
Ec0VV_H72 K | 1485 | 1469 | 1465 | 1449 | 20 | 20 | −84 | −100 | −104 | −120 |
Ec0VV_S82 K | 1453 | 1442 | 1439 | 1428 | 14 | 14 | −116 | −127 | −130 | −141 |
Ec0VV_T88R | 1470 | 1456 | 1453 | 1440 | 17 | 17 | −99 | −113 | −116 | −129 |
Ec0VV_Q87 K | 1398 | 1387 | 1385 | 1374 | 13 | 13 | −171 | −182 | −184 | −195 |
Ec0VV_Q87 K/T88R | 1524 | 1495 | 1488 | 1459 | 36 | 36 | −45 | −74 | −81 | −110 |
Ec0VV_S110R | 1608 | 1595 | 1590 | 1578 | 17 | 17 | 39 | 26 | 21 | 9 |
Ec0VV_6 | 1638 | 1560 | 1540 | 1465 | 98 | 96 | 69 | −9 | −29 | −104 |
The unit is kJ mol−1.
*a and b represent the calculated results using the temperature function of ΔCp obtained from Ec0VV and Ec0VV_6, respectively.