Id |
Subject |
Object |
Predicate |
Lexical cue |
T142 |
0-100 |
Sentence |
denotes |
To identify the dominant motions in the nCOV-2019, SARS-COV, and all the mutants, PCA was performed. |
T143 |
101-306 |
Sentence |
denotes |
Most of the combined motions were captured by the first ten eigenvectors generated from the last 400 ns for SARS-COV, nCOV-2019, and extended mutant systems and the last 200 ns for other nCOV-2019 mutants. |
T144 |
307-421 |
Sentence |
denotes |
The percentage of the motions captured by the first three eigenvectors was 51% for nCOV-2019 and 68% for SARS-COV. |
T145 |
422-515 |
Sentence |
denotes |
In all mutations, more than 50% of the motions were captured by the first three eigenvectors. |
T146 |
516-676 |
Sentence |
denotes |
The first few PC’s describe the highest motions in a protein which are related to a functional motion such as binding or unbinding of protein from the receptor. |
T147 |
677-876 |
Sentence |
denotes |
The first three eigenvectors were used to calculate the aFEL using the last 400 ns of simulation for nCOV-2019 and SARS-COV as shown in Figure 5, which displays the variance in conformational motion. |
T148 |
877-975 |
Sentence |
denotes |
SARS-COV showed two distinct low free energy states shown as blue separated by a metastable state. |
T149 |
976-1077 |
Sentence |
denotes |
There is a clear separation between the two regions by a free energy barrier of about 6–7.5 kcal/mol. |
T150 |
1078-1193 |
Sentence |
denotes |
These two states correspond to the loop motions in the L3 as well as the motion in C-terminal residues of SARS-COV. |
T151 |
1194-1342 |
Sentence |
denotes |
The L3 motion in nCOV-2019 is stabilized by the H-bond between N487 on RBD and Y83 on ACE2 as well as a π-stacking interaction between F486 and Y83. |
T152 |
1343-1539 |
Sentence |
denotes |
It is evident that the nCOV-2019 RBD is more stable than SASR-COV RBD and exists in one conformation whereas the SARS-COV interface fluctuates and the aFEL is separated into two different regions. |
T153 |
1540-1761 |
Sentence |
denotes |
The first two eigenvectors were used to calculate and plot the aFEL as a function of first two principal components using the last 200 ns of the simulation for mutant systems. aFEL for other systems is shown in Figure S4. |