Anti-SARS-CoV-2-spike glycoprotein antibodies and antigen-binding fragments
The present disclosure provides antibodies and antigen-binding fragments thereof that bind specifically to a coronavirus spike protein and methods of using such antibodies and fragments for treating or preventing viral infections (e.g., coronavirus infections).
1. A vector comprising a polynucleotide encoding a heavy chain variable region (HCVR) of an antibody or antigen-binding fragment thereof that binds a SARS-CoV-2 spike protein comprising the amino acid sequence set forth in SEQ ID NO: 832, wherein said HCVR comprises three heavy chain complementarity determining regions (CDRs) (HCDR1, HCDR2 and HCDR3), wherein said HCDR1 comprises the amino acid sequence set forth in SEQ ID NO: 680, said HCDR2 comprises the amino acid sequence set forth in SEQ ID NO: 682, and said HCDR3 comprises the amino acid sequence set forth in SEQ ID NO: 684.
2. The vector of claim 1 , wherein said HCVR comprises the amino acid sequence set forth in SEQ ID NO: 678.
3. The vector of claim 1 , wherein said polynucleotide further encodes an immunoglobulin constant region.
4. The vector of claim 3 , wherein said immunoglobulin constant region is an IgG1 constant region.
5. The vector of claim 1 , wherein said polynucleotide encodes a heavy chain amino acid sequence set forth in SEQ ID NO: 692.
6. The vector of claim 1 , wherein said vector is a lentivirus vector.
7. The vector of claim 1 , wherein said vector is an adeno-associated virus vector.
8. The vector of claim 1 , wherein said polynucleotide is a DNA polynucleotide.
9. The vector of claim 1 , wherein said polynucleotide is an RNA polynucleotide.
10. A vector comprising a polynucleotide encoding a light chain variable region (LCVR) of an antibody or antigen-binding fragment thereof that binds a SARS-CoV-2 spike protein comprising the amino acid sequence set forth in SEQ ID NO: 832, wherein said LCVR comprises three light chain complementarity determining regions (CDRs) (LCDR1, LCDR2 and LCDR3), wherein said LCDR1 comprises the amino acid sequence set forth in SEQ ID NO: 688, said LCDR2 comprises the amino acid sequence set forth in SEQ ID NO: 650, and said LCDR3 comprises the amino acid sequence set forth in SEQ ID NO: 690.
11. The vector of claim 10 , wherein said LCVR comprises the amino acid sequence set forth in SEQ ID NO: 686.
12. The vector of claim 10 , wherein said antibody comprises a light chain amino acid sequence set forth in SEQ ID NO: 694.
13. The vector of claim 10 , wherein said vector is a lentivirus vector.
14. The vector of claim 10 , wherein said vector is an adeno-associated virus vector.
15. The vector of claim 10 , wherein said polynucleotide is a DNA polynucleotide.
16. The vector of claim 10 , wherein said polynucleotide is an RNA polynucleotide.
17. A lipid nanoparticle comprising a polynucleotide encoding a heavy chain variable region (HCVR) of an antibody or antigen-binding fragment thereof that binds a SARS-CoV-2 spike protein comprising the amino acid sequence set forth in SEQ ID NO: 832, wherein said HCVR comprises three heavy chain complementarity determining regions (CDRs) (HCDR1, HCDR2 and HCDR3), wherein said HCDR1 comprises the amino acid sequence set forth in SEQ ID NO: 680, said HCDR2 comprises the amino acid sequence set forth in SEQ ID NO: 682, and said HCDR3 comprises the amino acid sequence set forth in SEQ ID NO: 684.
18. The lipid nanoparticle of claim 17 , wherein said HCVR comprises the amino acid sequence set forth in SEQ ID NO: 678.
19. The lipid nanoparticle of claim 17 , wherein said polynucleotide further encodes an immunoglobulin constant region.
20. The lipid nanoparticle of claim 19 , wherein said immunoglobulin constant region is an IgG1 constant region.
21. The lipid nanoparticle of claim 17 , wherein said polynucleotide encodes a heavy chain amino acid sequence set forth in SEQ ID NO: 692.
22. The lipid nanoparticle of claim 17 , wherein said polynucleotide is a DNA polynucleotide.
23. The lipid nanoparticle of claim 17 , wherein said polynucleotide is an RNA polynucleotide.
24. A lipid nanoparticle comprising a polynucleotide encoding a light chain variable region (LCVR) of an antibody or antigen-binding fragment thereof that binds a SARS-CoV-2 spike protein comprising the amino acid sequence set forth in SEQ ID NO: 832, wherein said LCVR comprises three light chain complementarity determining regions (CDRs) (LCDR1, LCDR2 and LCDR3), wherein said LCDR1 comprises the amino acid sequence set forth in SEQ ID NO: 688, said LCDR2 comprises the amino acid sequence set forth in SEQ ID NO: 650, and said LCDR3 comprises the amino acid sequence set forth in SEQ ID NO: 690.
25. The lipid nanoparticle of claim 24 , wherein said LCVR comprises the amino acid sequence set forth in SEQ ID NO: 686.
26. The lipid nanoparticle of claim 24 , wherein said polynucleotide encodes a light chain amino acid sequence set forth in SEQ ID NO: 694.
27. The lipid nanoparticle of claim 24 , wherein said polynucleotide is a DNA polynucleotide.
28. The lipid nanoparticle of claim 24 , wherein said polynucleotide is an RNA polynucleotide.