7m53

B6 Fab fragment bound to the SARS-CoV/SARS-CoV-2 spike stem helix peptide

Method: X-RAY DIFFRACTION Dmax: 81.2 Å Quality: EXCELLENT

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

Spike glycoprotein stem helix peptide

OrganismNot specified

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 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 1146–1161 Fragment:residues 1146-1161 of the spike glycoprotein B6 antigen-binding (Fab) fragment heavy chain × 1 B6 antigen-binding (Fab) fragment light chain × 1 GOL GLYCEROL × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.2 M Potassium Chloride and 20% (w/v) PEG3350 Resolution 1.40 Å R-free 0.174

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 1–16; UniProt 1146–1161

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 7m53

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7m53
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7m53
Deposition date deposition_date2021-03-22
Structure title titleB6 Fab fragment bound to the SARS-CoV/SARS-CoV-2 spike stem helix peptide
Keywords keywords;Broadly neutralizing antibody, Structural genomics, SSGCID, Center for Structural Genomics of Infectious Diseases, CSGID, ANTIVIRAL PROTEIN, Seattle Structural Genomics Center for Infectious Disease, IMMUNE SYSTEM ;; ANTIVIRAL PROTEIN, IMMUNE SYSTEM
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier25.18
Radius of gyration Rg (electron density) rg_electron24.26
Forward intensity I(0) i039645300.00
Molecular weight molecular_weight48128.0 kDa
Excluded volume excluded_volume59896 ų
Envelope volume envelope_volume72192 ų
Hydration-shell volume shell_volume25027 ų
Envelope diameter envelope_diameter83.0
Shell Rg shell_rg31.11
Envelope Rg envelope_rg24.04
Shape Rg shape_rg24.25
Total Rg total_rg25.04
Total atoms total_atoms3388
Residues n_residues448
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 dmax81.2
Rg (real space) rg_real25.17
Rg uncertainty (real space) rg_real_error0.57
I(0) (real space) i0_real3.9650e+07
I(0) uncertainty (real space) i0_real_error5.7950e+05
Rg (reciprocal space) rg_reciprocal25.17
I(0) (reciprocal space) i0_reciprocal39650000.0000
Solution quality estimate total_estimate0.9020
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary28.4
Skewness Skewness skewness0.310
Kurtosis Kurtosis kurtosis-0.452
Angular range angular_range— – 0.3150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha9028000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.923; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.969; Smooth: 0.984

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id7m53H01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id7m53H02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id7m53L01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id7m53L02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)