8epq

Cryo-EM structure of SARS-CoV-2 Spike trimer S2D14 with two RBDs exposed

Method: ELECTRON MICROSCOPY Dmax: 171.2 Å Quality: REASONABLE

1. Protein Identity and Related Structures Protein Identity & Related Structures

Spike glycoprotein

Severe acute respiratory syndrome coronavirus 2

UniProt P0DTC2

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Homooligomer Protein × 3 其他Polymer 15 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 27–1147 Chain B; UniProt 27–1147 Chain C; UniProt 27–1147 Not recorded 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 11 beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 32 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5;10mM Tris + 150mM NaCl cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.30 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

2152 other PDB entries and 2473 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SPIKE_SARS2
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–1121; UniProt 27–1147 Author chain B; PDBConstruct 1–1121; UniProt 27–1147 Author chain C; PDBConstruct 1–1121; UniProt 27–1147

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 8epq

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8epq
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8epq
Deposition date deposition_date2022-10-06
Structure title titleCryo-EM structure of SARS-CoV-2 Spike trimer S2D14 with two RBDs exposed
Keywords keywordsGlycoprotein, trimer, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method methodELECTRON MICROSCOPY

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier51.10
Radius of gyration Rg (electron density) rg_electron50.83
Forward intensity I(0) i01663350000.00
Molecular weight molecular_weight344690.0 kDa
Excluded volume excluded_volume432930 ų
Envelope volume envelope_volume649150 ų
Hydration-shell volume shell_volume104920 ų
Envelope diameter envelope_diameter182.1
Shell Rg shell_rg55.83
Envelope Rg envelope_rg49.77
Shape Rg shape_rg50.88
Total Rg total_rg50.84
Total atoms total_atoms24287
Residues n_residues2984
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax171.2
Rg (real space) rg_real52.48
Rg uncertainty (real space) rg_real_error0.64
I(0) (real space) i0_real1.6490e+09
I(0) uncertainty (real space) i0_real_error2.8130e+07
Rg (reciprocal space) rg_reciprocal51.16
I(0) (reciprocal space) i0_reciprocal1664000000.0000
Solution quality estimate total_estimate0.6994
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary60.8
Skewness Skewness skewness0.415
Kurtosis Kurtosis kurtosis-0.124
Angular range angular_range— – 0.1550 −1
Current regularization parameter α current_alpha1.3380
Highest regularization parameter α highest_alpha261400000.0000
Real-space data points n_real_points32
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.867; Stabil: 0.910; Sysdev: 0.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.778

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id8epqA01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily960 — Spike glycoprotein, N-terminal domain
Domain ID domain_id8epqB01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily960 — Spike glycoprotein, N-terminal domain
Domain ID domain_id8epqC01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily960 — Spike glycoprotein, N-terminal domain

8. Citations (1)

9. Files and Curves (10)