3qmb

X-ray diffraction
2.06Å resolution

Structural Basis of Selective Binding of Nonmethylated CpG Islands by the CXXC Domain of CFP1

Released:

Function and Biology Details

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

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct DNA molecule
Macromolecules (2 distinct):
CXXC-type zinc finger protein 1 Chain: A
Molecule details ›
Chain: A
Length: 79 amino acids
Theoretical weight: 9.53 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q9P0U4 (Residues: 161-222; Coverage: 10%)
Gene names: CFP1, CGBP, CXXC1, PCCX1, PHF18
5'-D(*GP*CP*CP*AP*CP*CP*GP*GP*TP*GP*GP*C)-3' Chains: B, C
Molecule details ›
Chains: B, C
Length: 12 nucleotides
Theoretical weight: 3.66 KDa
Source organism: Homo sapiens
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 19-ID
Spacegroup: C2221
Unit cell:
a: 37.375Å b: 71.965Å c: 115.6Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.221 0.22 0.235
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided