6XF6

Cryo-EM structure of a biotinylated SARS-CoV-2 spike probe in the prefusion state (1 RBD up)

PDB DOI: https://doi.org/10.2210/pdb6XF6/pdb
EM Map EMD-22162: EMDB EMDataResource

Classification: VIRAL PROTEIN
Organism(s): Severe acute respiratory syndrome coronavirus 2
Expression System: Homo sapiens
Mutation(s): No

Deposited: 2020-06-15 Released: 2020-09-02
Deposition Author(s): Cerutti, G., Gorman, J., Kwong, P.D., Shapiro, L.

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 4.00 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

This is version 1.1 of the entry. See complete history.

Literature

Structure-Based Design with Tag-Based Purification and In-Process Biotinylation Enable Streamlined Development of SARS-CoV-2 Spike Molecular Probes.

Zhou, T., Teng, I.T., Olia, A.S., Cerutti, G., Gorman, J., Nazzari, A., Shi, W., Tsybovsky, Y., Wang, L., Wang, S., Zhang, B., Zhang, Y., Katsamba, P.S., Petrova, Y., Banach, B.B., Fahad, A.S., Liu, L., Acevedo, S.N.L., Madan, B., de Souza, M.O., Pan, X., Wang, P., Wolfe, J.R., Yin, M., Ho, D.D., Phung, E., DiPiazza, A., Chang, L., Abiona, O., Corbett, K.S., DeKosky, B.J., Graham, B.S., Mascola, J.R., Misasi, J., Ruckwardt, T., Sullivan, N.J., Shapiro, L., Kwong, P.D.

(2020) SSRN : 3639618-3639618

PubMed: 32742241 Search on PubMedSearch on PubMed Central
DOI: https://doi.org/10.2139/ssrn.3639618
Primary Citation of Related Structures:
6XF5, 6XF6

PubMed Abstract:

Biotin-labeled molecular probes, comprising specific regions of the SARS-CoV-2 spike, would be helpful in the isolation and characterization of antibodies targeting this recently emerged pathogen. To develop such probes, we designed constructs incorporating an N-terminal purification tag, a site-specific protease-cleavage site, the probe region of interest, and a C-terminal sequence targeted by biotin ligase. Probe regions included full-length spike ectodomain as well as various subregions, and we also designed mutants to eliminate recognition of the ACE2 receptor. Yields of biotin-labeled probes from transient transfection ranged from ~0.5 mg/L for the complete ectodomain to >5 mg/L for several subregions. Probes were characterized for antigenicity and ACE2 recognition, and the structure of the spike ectodomain probe was determined by cryo-electron microscopy. We also characterized antibody-binding specificities and cell-sorting capabilities of the biotinylated probes. Altogether, structure-based design coupled to efficient purification and biotinylation processes can thus enable streamlined development of SARS-CoV-2 spike-ectodomain probes. Funding: Support for this work was provided by the Intramural Research Program of the Vaccine Research Center, National Institute of Allergy and Infectious Diseases (NIAID). Support for this work was also provided by COVID-19 Fast Grants, the Jack Ma Foundation, the Self Graduate Fellowship Program, and NIH grants DP5OD023118, R21AI143407, and R21AI144408. Some of this work was performed at the Columbia University Cryo-EM Center at the Zuckerman Institute, and some at the Simons Electron Microscopy Center (SEMC) and National Center for Cryo-EM Access and Training (NCCAT) located at the New York Structural Biology Center, supported by grants from the Simons Foundation (SF349247), NYSTAR, and the NIH National Institute of General Medical Sciences (GM103310). Conflict of Interest: The authors declare that they have no conflict of interest. Ethical Approval: Peripheral blood mononuclear cells (PBMCs) for B cell sorting were obtained from a convalescent SARS-CoV-2 patient (collected 75 days post symptom onset under an IRB approved clinical trial protocol, VRC 200 - ClinicalTrials.gov Identifier: NCT00067054) and a healthy control donor from the NIH blood bank pre-SARS-CoV-2 pandemic.

Organizational Affiliation:

Lead Contact: Peter D. Kwong.

Macromolecule Content

Total Structure Weight: 429 kDa
Atom Count: 22,938
Modelled Residue Count: 2,928
Deposited Residue Count: 3,765
Unique protein chains: 1

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Spike glycoprotein	A, B, C	1,255	Severe acute respiratory syndrome coronavirus 2	Mutation(s): 0 Gene Names: S, 2
UniProt
Find proteins for P0DTC2 (Severe acute respiratory syndrome coronavirus 2) Explore P0DTC2 Go to UniProtKB: P0DTC2
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P0DTC2
Protein Feature View Expand
Reference Sequence

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Chain Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	D, E, F, G, H D, E, F, G, H, I, J, K, L, M, N, O	2		N-Glycosylation	Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan: G42666HT GlyCosmos: G42666HT GlyGen: G42666HT

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
NAG (Subject of Investigation/LOI) Query on NAG Download Ideal Coordinates CCD File SDF format, chain AA [auth B] SDF format, chain BA [auth B] SDF format, chain CA [auth B] SDF format, chain DA [auth B] SDF format, chain EA [auth B] SDF format, chain FA [auth B] SDF format, chain GA [auth B] SDF format, chain HA [auth B] SDF format, chain IA [auth B] SDF format, chain JA [auth B] SDF format, chain KA [auth B] SDF format, chain LA [auth B] SDF format, chain MA [auth C] SDF format, chain NA [auth C] SDF format, chain OA [auth C] SDF format, chain P [auth A] SDF format, chain PA [auth C] SDF format, chain Q [auth A] SDF format, chain QA [auth C] SDF format, chain R [auth A] SDF format, chain RA [auth C] SDF format, chain S [auth A] SDF format, chain SA [auth C] SDF format, chain T [auth A] SDF format, chain TA [auth C] SDF format, chain U [auth A] SDF format, chain UA [auth C] SDF format, chain V [auth A] SDF format, chain VA [auth C] SDF format, chain W [auth A] SDF format, chain WA [auth C] SDF format, chain X [auth A] SDF format, chain XA [auth C] SDF format, chain Y [auth A] SDF format, chain Z [auth B] MOL2 format, chain AA [auth B] MOL2 format, chain BA [auth B] MOL2 format, chain CA [auth B] MOL2 format, chain DA [auth B] MOL2 format, chain EA [auth B] MOL2 format, chain FA [auth B] MOL2 format, chain GA [auth B] MOL2 format, chain HA [auth B] MOL2 format, chain IA [auth B] MOL2 format, chain JA [auth B] MOL2 format, chain KA [auth B] MOL2 format, chain LA [auth B] MOL2 format, chain MA [auth C] MOL2 format, chain NA [auth C] MOL2 format, chain OA [auth C] MOL2 format, chain P [auth A] MOL2 format, chain PA [auth C] MOL2 format, chain Q [auth A] MOL2 format, chain QA [auth C] MOL2 format, chain R [auth A] MOL2 format, chain RA [auth C] MOL2 format, chain S [auth A] MOL2 format, chain SA [auth C] MOL2 format, chain T [auth A] MOL2 format, chain TA [auth C] MOL2 format, chain U [auth A] MOL2 format, chain UA [auth C] MOL2 format, chain V [auth A] MOL2 format, chain VA [auth C] MOL2 format, chain W [auth A] MOL2 format, chain WA [auth C] MOL2 format, chain X [auth A] MOL2 format, chain XA [auth C] MOL2 format, chain Y [auth A] MOL2 format, chain Z [auth B]	AA [auth B] BA [auth B] CA [auth B] DA [auth B] EA [auth B] AA [auth B], BA [auth B], CA [auth B], DA [auth B], EA [auth B], FA [auth B], GA [auth B], HA [auth B], IA [auth B], JA [auth B], KA [auth B], LA [auth B], MA [auth C], NA [auth C], OA [auth C], P [auth A], PA [auth C], Q [auth A], QA [auth C], R [auth A], RA [auth C], S [auth A], SA [auth C], T [auth A], TA [auth C], U [auth A], UA [auth C], V [auth A], VA [auth C], W [auth A], WA [auth C], X [auth A], XA [auth C], Y [auth A], Z [auth B]	2-acetamido-2-deoxy-beta-D-glucopyranose C₈ H₁₅ N O₆ OVRNDRQMDRJTHS-FMDGEEDCSA-N		Ligand Interaction