Id |
Subject |
Object |
Predicate |
Lexical cue |
T1 |
0-70 |
Sentence |
denotes |
Design of an engineered ACE2 as a novel therapeutics against COVID-19. |
T2 |
71-319 |
Sentence |
denotes |
The interaction between the angiotensin-converting enzyme 2 (ACE2) and the receptor binding domain (RBD) of the spike protein from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) plays a pivotal role in virus entry into the host cells. |
T3 |
320-493 |
Sentence |
denotes |
Since recombinant ACE2 protein has been suggested as an anti-SARS-CoV-2 therapeutic agent, this study was conducted to design an ACE2 protein with more desirable properties. |
T4 |
494-596 |
Sentence |
denotes |
In this regard, the amino acids with central roles in enzymatic activity of the ACE2 were substituted. |
T5 |
597-737 |
Sentence |
denotes |
Moreover, saturation mutagenesis at the interaction interface between the ACE2 and RBD was performed to increase their interaction affinity. |
T6 |
738-877 |
Sentence |
denotes |
The best mutations to increase the structural and thermal stability of the ACE2 were also selected based on B factors and mutation effects. |
T7 |
878-1048 |
Sentence |
denotes |
The obtained resulted revealed that the Arg273Gln and Thr445Gly mutation have drastically reduced the binding affinity of the angiotensin-II into the active site of ACE2. |
T8 |
1049-1150 |
Sentence |
denotes |
The Thr27Arg mutation was determined to be the most potent mutation to increase the binding affinity. |
T9 |
1151-1244 |
Sentence |
denotes |
The Asp427Arg mutation was done to decrease the flexibility of the region with high B factor. |
T10 |
1245-1388 |
Sentence |
denotes |
The Pro451Met mutation along with the Gly448Trp mutation was predicted to increase the thermodynamic stability and thermostability of the ACE2. |
T11 |
1389-1535 |
Sentence |
denotes |
The designed therapeutic ACE2 would have no enzymatic activity while it could bear stronger interaction with Spike glycoprotein of the SARS-CoV-2. |
T12 |
1536-1640 |
Sentence |
denotes |
Moreover, decreased in vivo enzymatic degradation would be anticipated due to increased thermostability. |
T13 |
1641-1755 |
Sentence |
denotes |
This engineered ACE2 could be exploited as a novel therapeutic agent against COVID-19 after necessary evaluations. |