| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T94 |
0-131 |
Sentence |
denotes |
When the spike protein attaches to its host cellular receptor, it is cleaved into two parts (S1 and S2) by extracellular proteases. |
| T95 |
132-260 |
Sentence |
denotes |
While S1 remains attached to its target, S2 is further cleaved by the host cell's own transmembrane serine protease 2 (TMPRSS2). |
| T96 |
261-345 |
Sentence |
denotes |
This process induces the fusion of the viral membrane with the host cell's membrane. |
| T97 |
346-348 |
Sentence |
denotes |
15 |
