1qp4

X-ray diffraction
3Å resolution

PURINE REPRESSOR-HYPOXANTHINE-PALINDROMIC OPERATOR COMPLEX

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct DNA molecule
Macromolecules (2 distinct):
HTH-type transcriptional repressor PurR Chain: A
Molecule details ›
Chain: A
Length: 340 amino acids
Theoretical weight: 38.09 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0ACP7 (Residues: 2-341; Coverage: 100%)
Gene names: JW1650, b1658, purR
Sequence domains:
Structure domains:
DNA (5'-D(*TP*AP*CP*GP*CP*AP*AP*TP*CP*GP*AP*TP*TP*GP*CP*GP*T)-3') Chain: M
Molecule details ›
Chain: M
Length: 17 nucleotides
Theoretical weight: 5.2 KDa
Source organism: Escherichia coli
Expression system: Not provided

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU
Spacegroup: C2221
Unit cell:
a: 176.48Å b: 95.26Å c: 81.18Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.157 not available not available
Expression systems:
  • Escherichia coli
  • Not provided