Id |
Subject |
Object |
Predicate |
Lexical cue |
T14 |
0-297 |
Sentence |
denotes |
Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV), Middle Eastern Respiratory Syndrome Coronavirus (MERS-CoV), and the recently identified novel Coronavirus (SARS-CoV-2) belong to the Coronaviridae family, genus Betacoronavirus, that has been related to important epidemiological outbreaks. |
T15 |
298-382 |
Sentence |
denotes |
These are enveloped viruses with a positive-sense single-strand RNA of around 32 Kb. |
T16 |
383-498 |
Sentence |
denotes |
The viral particles contain four main structural proteins: the spike, membrane, envelope protein, and nucleocapsid. |
T17 |
499-641 |
Sentence |
denotes |
The spike protein protrudes from the envelope of the virion and plays a pivotal role in the receptor host selectivity and cellular attachment. |
T18 |
642-812 |
Sentence |
denotes |
Strong scientific evidence showed that SARS and SARS-CoV-2 spike proteins interact with angiotensin-converting enzyme 2 (ACE2) (Chen et al 2020[2]; Wan et al., 2020[16]). |
T19 |
813-950 |
Sentence |
denotes |
Also, other cellular receptors play a secondary role in the viral attachment, as the C-type lectin CD209L, and DC-SIGN binds to SARS-CoV. |
T20 |
951-1246 |
Sentence |
denotes |
However, ACE2 appears to be the key functional receptor for the SARS-CoV (Coutard et al., 2020[3]; Satija and Lal, 2007[12]) and probably for SARS-CoV-2 (Walls et al., 2020[15]) The interaction between the viral protein and its cell membrane receptor is a critical step in the replication cycle. |
T21 |
1247-1332 |
Sentence |
denotes |
Furthermore, the efficiency of viral infection is strongly dependent on this process. |
T22 |
1333-1414 |
Sentence |
denotes |
Several physicochemical factors are associated with protein-protein interactions. |
T23 |
1415-1546 |
Sentence |
denotes |
These factors are determined by the nature of residues and the type of chemical interactions occurring between ligand and receptor. |
T24 |
1547-1712 |
Sentence |
denotes |
Thus, the presence of residues that produce an energetically favored interaction (lower free energy) may drive binding kinetics and finally lead to the fusion event. |
T25 |
1713-1868 |
Sentence |
denotes |
Based on that, this study aimed to evaluate the energetic profile of the interaction between the SARS-CoV-2 spike protein and the human cell receptor ACE2. |