4WBD image
Entry Detail
PDB ID:
4WBD
Keywords:
LIGASE
Title:
The crystal structure of BshC from Bacillus subtilis complexed with citrate and ADP
Biological Source:
Source Organism:
Bacillus subtilis
Host Organism:
Escherichia coli
PDB Version:
Deposition Date:
2014-09-03
Release Date:
2014-12-31
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.77 Å
R-Value Free:
0.19
R-Value Work:
0.16
R-Value Observed:
0.16
Space Group:
I 1 2 1
4WBD validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Description:BSHC
Chain IDs:A
Chain Length:541
Number of Molecules:1
Biological Source:Bacillus subtilis
UniProt ID:P55342 Pfam ID:PF10079
Ligand Molecules
ADP
CIT
GOL
Primary Citation
X-ray Crystallographic Structure of BshC, a Unique Enzyme Involved in Bacillithiol Biosynthesis.
Biochemistry 54 100 103 (2015)
PMID: 25496067 DOI: 10.1021/bi501394q

Abstact

Bacillithiol is produced by many Gram-positive bacteria via a pathway utilizing the enzymes BshA, BshB, and BshC. Here we report the 1.77 Å resolution crystal structure of BshC, the putative cysteine ligase in bacillithiol production. The structure reveals that BshC contains a core Rossmann fold with connecting peptide motifs (CP1 and CP2) and a unique α-helical coiled-coil domain that facilitates dimerization. The model contains citrate and glycerol in the canonical active site and ADP in a second binding pocket. The overall structure and bound ligands give insight into the function of this unique enzyme.

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Primary Citation of related structures
4WBD