5GPE image
Deposition Date 2016-08-01
Release Date 2016-12-28
Last Version Date 2023-11-08
Entry Detail
PDB ID:
5GPE
Keywords:
TRANSCRIPTION
Title:
Crystal structure of the transcription regulator PbrR691 from Ralstonia metallidurans CH34 in complex with Lead(II)
Biological Source:
Source Organism:
Cupriavidus metallidurans CH34 (Taxon ID: 266264)
Host Organism:
Escherichia coli BL21(DE3)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.01 Å
R-Value Free:
0.21
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 1
5GPE validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Transcriptional regulator, MerR-family
Gene (Uniprot):pbrR2
Chain IDs:A, B, C, D, E, F, G, H
Chain Length:129
Number of Molecules:8
Biological Source:Cupriavidus metallidurans CH34
UniProt ID:Q1LKZ5 Pfam ID:PF00376, PF09278
Ligand Molecules
PB
Primary Citation
Structural Basis for the Selective Pb(II) Recognition of Metalloregulatory Protein PbrR691
Inorg Chem 55 12516 12519 (2016)
PMID: 27989185 DOI: 10.1021/acs.inorgchem.6b02397

Abstact

The transcription regulator PbrR691, one of the MerR family proteins, shows extremely high sensitivity and selectivity toward Pb(II) in Ralstonia metallidurans CH34. Here, we present the crystal structure of PbrR691 in complex with Pb(II) at 2.0 Å resolution. The Pb(II) coordinates with three conserved cysteines and adopts a unique trigonal-pyramidal (hemidirected) geometry. To our knowledge, the PbrR691-Pb(II) structure provides the first three-dimensional visualization of a functional hemidirected lead(II) thiolate coordinate geometry in a protein.

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Primary Citation of related structures
5GPE