ISDA

Entry Detail

PDB ID:

7K45

EMDB ID:

EMD-22660

Keywords:

VIRAL PROTEIN/IMMUNE SYSTEM

Title:

SARS-CoV-2 spike in complex with the S2E12 neutralizing antibody Fab fragment (local refinement of the RBD and Fab variable domains)

Biological Source:

Source Organism:

Homo sapiens, Severe acute respiratory syndrome coronavirus 2

Host Organism:

Cricetulus griseus

PDB Version:

Deposition Date:

2020-09-14

Release Date:

2020-10-07

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

3.70 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Spike glycoprotein
Chain IDs:C (auth: B)
Chain Length:1288
Number of Molecules:1
Biological Source:Severe acute respiratory syndrome coronavirus 2

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

Polymer Type:polypeptide(L)
Description:S2E12 neutralizing antibody Fab fragment (heavy chain)
Chain IDs:A (auth: H)
Chain Length:123
Number of Molecules:1
Biological Source:Homo sapiens

Polymer Type:polypeptide(L)
Description:S2E12 neutralizing antibody Fab fragment (light chain)
Chain IDs:B (auth: L)
Chain Length:109
Number of Molecules:1
Biological Source:Homo sapiens

Ligand Molecules

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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Primary Citation of related structures