6p0s

X-ray diffraction
2.7Å resolution

Crystal structure of ternary DNA complex "FX2" containing E. coli Fis and phage lambda Xis

Released:
Primary publication:
Cooperative DNA binding by proteins through DNA shape complementarity.
Nucleic Acids Res 47 8874-8887 (2019)
PMID: 31616952

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero pentamer (preferred)
PDBe Complex ID:
PDB-CPX-120414 (preferred)
Entry contents:
2 distinct polypeptide molecules
2 distinct DNA molecules
Macromolecules (4 distinct):
DNA-binding protein Fis Chains: A, B
Molecule details ›
Chains: A, B
Length: 98 amino acids
Theoretical weight: 11.25 KDa
Source organism: Escherichia coli K-12
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P0A6R3 (Residues: 1-98; Coverage: 100%)
Gene names: JW3229, b3261, fis
Sequence domains: Bacterial regulatory protein, Fis family
Excisionase Chain: E
Molecule details ›
Chain: E
Length: 55 amino acids
Theoretical weight: 6.79 KDa
Source organism: Lambdavirus lambda
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P03699 (Residues: 1-55; Coverage: 76%)
Gene name: xis
Sequence domains: Excisionase-like protein
DNA (27-MER), FX1-2 Chain: C
Molecule details ›
Chain: C
Length: 27 nucleotides
Theoretical weight: 8.28 KDa
DNA (27-MER), FX1-2 Chain: D
Molecule details ›
Chain: D
Length: 27 nucleotides
Theoretical weight: 8.31 KDa

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 24-ID-C
Spacegroup: P43212
Unit cell:
a: 107.67Å b: 107.67Å c: 150.43Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.222 0.222 0.23
Expression system: Escherichia coli BL21(DE3)