PDBe 1ssx

X-ray diffraction
0.83Å resolution

0.83A resolution crystal structure of alpha-lytic protease at pH 8


Function and Biology Details

Reaction catalysed:
Preferential cleavage: Ala-|-Xaa, Val-|-Xaa in bacterial cell walls, elastin and other proteins. 
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Alpha-lytic protease Chain: A
Molecule details ›
Chain: A
Length: 198 amino acids
Theoretical weight: 19.88 KDa
Source organism: Lysobacter enzymogenes
Expression system: Escherichia coli
  • Canonical: P00778 (Residues: 200-397; Coverage: 53%)
Gene name: alpha-LP
Sequence domains: Trypsin
Structure domains: Trypsin-like serine proteases

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-1
Spacegroup: P3221
Unit cell:
a: 65.91Å b: 65.91Å c: 79.697Å
α: 90° β: 90° γ: 120°
R R work R free
0.087 0.086 0.099
Expression system: Escherichia coli