› 6ejz

X-ray diffraction
1.9Å resolution

Tryptophan Repressor TrpR from E.coli variant S88Y with Indole-3-acetic acid as ligand

Released:
DOI: 10.2210/pdb6ejz/pdb
PDB entry 6ejz coloured by chain, front view.
PDB entry 6ejz coloured by chain, side view.
PDB entry 6ejz coloured by chain, top view.
Source organism: Escherichia coli 55989
Primary publication:
A biosensor for the direct visualization of auxin
Herud-Sikimic O, Stiel AC, Kolb M, Shanmugaratnam S, Berendzen KW, Feldhaus C, Hocker B, Juergens G
Nature (2021)

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-532177 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Trp operon repressor Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 116 amino acids
Theoretical weight: 13.52 KDa
Source organism: Escherichia coli 55989
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P0A881 (Residues: 1-108; Coverage: 100%)
Gene names: JW4356, b4393, rtrY, trpR
Sequence domains: Trp repressor protein
Structure domains: TrpR-like

Ligands and Environments

3 bound ligands:
Ligand IAC 5 x IAC
Ligand EDO 12 x EDO
Ligand SO4 1 x SO4
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X10SA
Spacegroup: P43
Unit cell:
a: 82.44Å b: 82.44Å c: 75.65Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.186 0.184 0.218
Expression system: Escherichia coli BL21

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