ISDA: 7K43

Deposition Date 2020-09-14

Release Date 2020-10-07

Last Version Date 2024-10-30

Entry Detail

PDB ID:

7K43

Keywords:

VIRAL PROTEIN/IMMUNE SYSTEM

Title:

SARS-CoV-2 spike in complex with the S2M11 neutralizing antibody Fab fragment

Biological Source:

Source Organism:

Severe acute respiratory syndrome coronavirus 2 (Taxon ID: 2697049)
Homo sapiens (Taxon ID: 9606)

Host Organism:

Homo sapiens

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

2.60 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Spike glycoprotein
Gene (Uniprot):S
Chain IDs:A, D (auth: B), G (auth: E)
Chain Length:1281
Number of Molecules:3
Biological Source:Severe acute respiratory syndrome coronavirus 2

UniProt ID:P0DTC2 Pfam ID:PF16451, PF09408, PF19209, PF01601

Polymer Type:polypeptide(L)
Molecule:S2M11 Fab fragment (heavy chain)
Chain IDs:B (auth: H), E (auth: C), H (auth: F)
Chain Length:125
Number of Molecules:3
Biological Source:Homo sapiens

Polymer Type:polypeptide(L)
Molecule:S2M11 Fab fragment (light chain)
Chain IDs:C (auth: L), F (auth: D), I (auth: G)
Chain Length:108
Number of Molecules:3
Biological Source:Homo sapiens

Ligand Molecules

NAG

Primary Citation

Ultrapotent human antibodies protect against SARS-CoV-2 challenge via multiple mechanisms.

Tortorici, M.A, Beltramello, M, Lempp, F.A, Pinto, D, Dang, H.V, Rosen, L.E, McCallum, M, Bowen, J, Minola, A, Jaconi, S, Zatta, F, De Marco, A, Guarino, B, Bianchi, S, Lauron, E.J, Tucker, H, Zhou, J, Peter, A, Havenar-Daughton, C, Wojcechowskyj, J.A, Case, J.B, Chen, R.E, Kaiser, H, Montiel-Ruiz, M, Meury, M, Czudnochowski, N, Spreafico, R, Dillen, J, Ng, C, Sprugasci, N, Culap, K, Benigni, F, Abdelnabi, R, Foo, S.C, Schmid, M.A, Cameroni, E, Riva, A, Gabrieli, A, Galli, M, Pizzuto, M.S, Neyts, J, Diamond, M.S, Virgin, H.W, Snell, G, Corti, D, Fink, K, Veesler, D.Show

Science 370 950 957 (2020)

PMID: 32972994 DOI: 10.1126/science.abe3354

Abstact

Efficient therapeutic options are needed to control the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that has caused more than 922,000 fatalities as of 13 September 2020. We report the isolation and characterization of two ultrapotent SARS-CoV-2 human neutralizing antibodies (S2E12 and S2M11) that protect hamsters against SARS-CoV-2 challenge. Cryo-electron microscopy structures show that S2E12 and S2M11 competitively block angiotensin-converting enzyme 2 (ACE2) attachment and that S2M11 also locks the spike in a closed conformation by recognition of a quaternary epitope spanning two adjacent receptor-binding domains. Antibody cocktails that include S2M11, S2E12, or the previously identified S309 antibody broadly neutralize a panel of circulating SARS-CoV-2 isolates and activate effector functions. Our results pave the way to implement antibody cocktails for prophylaxis or therapy, circumventing or limiting the emergence of viral escape mutants.

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