6jgw

X-ray diffraction
2.8Å resolution

Crystal structure of the transcriptional regulator CadR from P. putida in complex with DNA

Released:
Source organism: Pseudomonas putida
Primary publication:
Selective cadmium regulation mediated by a cooperative binding mechanism in CadR.
Proc Natl Acad Sci U S A 116 20398-20403 (2019)
PMID: 31548408

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-120071 (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
HTH merR-type domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 147 amino acids
Theoretical weight: 16.67 KDa
Source organism: Pseudomonas putida
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q93TP7 (Residues: 1-147; Coverage: 100%)
Gene names: BL240_26950, EFK07_13565, cadR
Sequence domains: MerR HTH family regulatory protein
DNA (27-MER) Chain: C
Molecule details ›
Chain: C
Length: 27 nucleotides
Theoretical weight: 8.34 KDa
Source organism: Pseudomonas putida
Expression system: Not provided
DNA (27-MER) Chain: D
Molecule details ›
Chain: D
Length: 27 nucleotides
Theoretical weight: 8.25 KDa
Source organism: Pseudomonas putida
Expression system: Not provided

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U
Spacegroup: P21
Unit cell:
a: 67.967Å b: 54.541Å c: 86.259Å
α: 90° β: 100.37° γ: 90°
R-values:
R R work R free
0.207 0.204 0.254
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided