4i98

X-ray diffraction
2.8Å resolution

Crystal structure of the complex between ScpA(residues 1-160)-ScpB(residues 1-183)

Released:
Primary publication:
An asymmetric SMC-kleisin bridge in prokaryotic condensin.
Nat Struct Mol Biol 20 371-9 (2013)
PMID: 23353789

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-111077 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Segregation and condensation protein A Chain: A
Molecule details ›
Chain: A
Length: 160 amino acids
Theoretical weight: 18.93 KDa
Source organism: Streptococcus pneumoniae P1031
Expression system: Escherichia coli
UniProt:
  • Canonical: C1CMI6 (Residues: 1-160; Coverage: 66%)
Gene names: SPP_1876, scpA
Sequence domains: Segregation and condensation protein ScpA
Segregation and condensation protein B Chains: B, C
Molecule details ›
Chains: B, C
Length: 183 amino acids
Theoretical weight: 20.41 KDa
Source organism: Streptococcus pneumoniae P1031
Expression system: Escherichia coli
UniProt:
  • Canonical: C1CMI5 (Residues: 1-183; Coverage: 97%)
Gene names: SPP_1875, scpB
Sequence domains: Segregation and condensation complex subunit ScpB
Structure domains: Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: PAL/PLS BEAMLINE 4A
Spacegroup: C2
Unit cell:
a: 185.297Å b: 82.72Å c: 59.909Å
α: 90° β: 98.92° γ: 90°
R-values:
R R work R free
0.24 0.24 0.259
Expression system: Escherichia coli