Id |
Subject |
Object |
Predicate |
Lexical cue |
T3 |
0-10 |
Sentence |
denotes |
Background |
T4 |
11-141 |
Sentence |
denotes |
A novel coronavirus, SARS-CoV-2, which emerged at the end of 2019 and causes COVID-19, has resulted in worldwide human infections. |
T5 |
142-392 |
Sentence |
denotes |
While genetically distinct, SARS-CoV-1, the aetiological agent responsible for an outbreak of severe acute respiratory syndrome (SARS) in 2002–2003, utilises the same host cell receptor as SARS-CoV-2 for entry: angiotensin-converting enzyme 2 (ACE2). |
T6 |
393-507 |
Sentence |
denotes |
Parts of the SARS-CoV-1 spike glycoprotein (S protein), which interacts with ACE2, appear conserved in SARS-CoV-2. |
T7 |
509-512 |
Sentence |
denotes |
Aim |
T8 |
513-652 |
Sentence |
denotes |
The cross-reactivity with SARS-CoV-2 of monoclonal antibodies (mAbs) previously generated against the S protein of SARS-CoV-1 was assessed. |
T9 |
654-661 |
Sentence |
denotes |
Methods |
T10 |
662-802 |
Sentence |
denotes |
The SARS-CoV-2 S protein sequence was aligned to those of SARS-CoV-1, Middle East respiratory syndrome (MERS) and common-cold coronaviruses. |
T11 |
803-1030 |
Sentence |
denotes |
Abilities of mAbs generated against SARS-CoV-1 S protein to bind SARS-CoV-2 or its S protein were tested with SARS-CoV-2 infected cells as well as cells expressing either the full length protein or a fragment of its S2 subunit. |
T12 |
1031-1121 |
Sentence |
denotes |
Quantitative ELISA was also performed to compare binding of mAbs to recombinant S protein. |
T13 |
1123-1130 |
Sentence |
denotes |
Results |
T14 |
1131-1281 |
Sentence |
denotes |
An immunogenic domain in the S2 subunit of SARS-CoV-1 S protein is highly conserved in SARS-CoV-2 but not in MERS and human common-cold coronaviruses. |
T15 |
1282-1411 |
Sentence |
denotes |
Four murine mAbs raised against this immunogenic fragment could recognise SARS-CoV-2 S protein expressed in mammalian cell lines. |
T16 |
1412-1552 |
Sentence |
denotes |
In particular, mAb 1A9 was demonstrated to detect S protein in SARS-CoV-2-infected cells and is suitable for use in a sandwich ELISA format. |
T17 |
1554-1564 |
Sentence |
denotes |
Conclusion |
T18 |
1565-1697 |
Sentence |
denotes |
The cross-reactive mAbs may serve as useful tools for SARS-CoV-2 research and for the development of diagnostic assays for COVID-19. |