4wvi

X-ray diffraction
1.9Å resolution

Crystal structure of the Type-I signal peptidase from Staphylococcus aureus (SpsB) in complex with a substrate peptide (pep2).

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-199637 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (3 distinct):
Maltose/maltodextrin-binding periplasmic protein; Signal peptidase IB Chain: A
Molecule details ›
Chain: A
Length: 533 amino acids
Theoretical weight: 59.19 KDa
Source organisms: Expression system: Escherichia coli K-12
UniProt:
  • Canonical: P0AEX9 (Residues: 33-393; Coverage: 98%)
  • Canonical: Q5HHB9 (Residues: 26-175; Coverage: 79%)
Gene names: JW3994, SACOL0969, b4034, malE, spsB
Sequence domains:
substrate peptide (pep2) Chain: D
Molecule details ›
Chain: D
Length: 11 amino acids
Theoretical weight: 886 Da
Source organism: Staphylococcus aureus
Expression system: Not provided

Ligands and Environments

Carbohydrate polymer : NEW Components: GLC
No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: AUSTRALIAN SYNCHROTRON BEAMLINE MX2
Spacegroup: P212121
Unit cell:
a: 63.989Å b: 80.232Å c: 119.879Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.19 0.188 0.219
Expression systems:
  • Escherichia coli K-12
  • Not provided