X-ray diffraction
2.1Å resolution

Serpina3n, a murine orthologue of human antichymotrypsin

Source organism: Mus musculus
Entry authors: Horvath AJ, Irving JA, Law RH, Rossjohn J, Bottomley SP, Quinsey NS, Pike RN, Coughlin PB, Whisstock JC

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Serine protease inhibitor A3N Chains: A, B
Molecule details ›
Chains: A, B
Length: 398 amino acids
Theoretical weight: 44.79 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
  • Canonical: Q91WP6 (Residues: 21-418; Coverage: 100%)
Gene names: Serpina3n, Spi2
Sequence domains: Serpin (serine protease inhibitor)
Structure domains:

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 14-BM-C
Spacegroup: P212121
Unit cell:
a: 83.34Å b: 92.62Å c: 118.26Å
α: 90° β: 90° γ: 90°
R R work R free
0.195 0.193 0.239
Expression system: Escherichia coli