5k5i

X-ray diffraction
2.19Å resolution

Homo sapiens CCCTC-binding factor (CTCF) ZnF5-8 and DNA complex structure in space group P65

Released:

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
Transcriptional repressor CTCF Chain: A
Molecule details ›
Chain: A
Length: 117 amino acids
Theoretical weight: 13.72 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P49711 (Residues: 378-489; Coverage: 15%)
Gene name: CTCF
DNA (5'-D(*CP*CP*CP*TP*GP*CP*TP*GP*GP*CP*AP*CP*C)-3') Chain: B
Molecule details ›
Chain: B
Length: 13 nucleotides
Theoretical weight: 3.89 KDa
Source organism: synthetic construct
Expression system: Not provided
DNA (5'-D(*GP*TP*GP*CP*CP*AP*GP*CP*AP*GP*GP*GP*G)-3') Chain: C
Molecule details ›
Chain: C
Length: 13 nucleotides
Theoretical weight: 4.06 KDa
Source organism: synthetic construct
Expression system: Not provided

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: P65
Unit cell:
a: 45.075Å b: 45.075Å c: 260.45Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.22 0.218 0.245
Expression systems:
  • Escherichia coli
  • Not provided