X-ray diffraction
2.15Å resolution

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-209706 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Synthetic nanobody SR4 Chain: A
Molecule details ›
Chain: A
Length: 144 amino acids
Theoretical weight: 15.99 KDa
Source organism: synthetic construct
Expression system: Escherichia coli BL21(DE3)
Spike protein S1 Chain: B
Molecule details ›
Chain: B
Length: 213 amino acids
Theoretical weight: 23.75 KDa
Source organism: Severe acute respiratory syndrome coronavirus 2
Expression system: Trichoplusia ni
  • Canonical: P0DTC2 (Residues: 330-531; Coverage: 16%)
Gene names: 2, S
Sequence domains: Betacoronavirus spike glycoprotein S1, receptor binding

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL19U1
Spacegroup: P6522
Unit cell:
a: 65.553Å b: 65.553Å c: 344.526Å
α: 90° β: 90° γ: 120°
R R work R free
0.186 0.184 0.224
Expression systems:
  • Escherichia coli BL21(DE3)
  • Trichoplusia ni