4f5c

X-ray diffraction
3.2Å resolution

Crystal structure of the spike receptor binding domain of a porcine respiratory coronavirus in complex with the pig aminopeptidase N ectodomain

Released:

Function and Biology Details

Reaction catalysed:
Release of an N-terminal amino acid, Xaa-|-Yaa- from a peptide, amide or arylamide. Xaa is preferably Ala, but may be most amino acids including Pro (slow action). When a terminal hydrophobic residue is followed by a prolyl residue, the two may be released as an intact Xaa-Pro dipeptide.
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-147244 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (3 distinct):
Aminopeptidase N Chains: A, B
Molecule details ›
Chains: A, B
Length: 959 amino acids
Theoretical weight: 108.9 KDa
Source organism: Sus scrofa
Expression system: Cricetulus griseus
UniProt:
  • Canonical: P15145 (Residues: 36-963; Coverage: 96%)
Gene name: ANPEP
Sequence domains:
Structure domains:
Spike glycoprotein Chains: E, F
Molecule details ›
Chains: E, F
Length: 440 amino acids
Theoretical weight: 48.37 KDa
Source organism: Porcine respiratory coronavirus
Expression system: Cricetulus griseus
UniProt:
  • Canonical: Q84852 (Residues: 17-442; Coverage: 35%)
Gene name: S
Sequence domains: Coronavirus spike glycoprotein S1
Structure domains: Immunoglobulin-like

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG
2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID29
Spacegroup: C2
Unit cell:
a: 220.859Å b: 87.938Å c: 176.912Å
α: 90° β: 90.54° γ: 90°
R-values:
R R work R free
0.203 0.201 0.245
Expression system: Cricetulus griseus