5D9E image
Deposition Date 2015-08-18
Release Date 2016-02-17
Last Version Date 2025-04-09
Entry Detail
PDB ID:
5D9E
Keywords:
UNKNOWN FUNCTION
Title:
Crystal Structure of the Proline-rich Lasso Peptide Caulosegnin II
Biological Source:
Source Organism:
Caulobacter segnis (Taxon ID: 509190)
Host Organism:
Escherichia coli BL21(DE3)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
0.86 Å
R-Value Free:
0.10
R-Value Work:
0.09
R-Value Observed:
0.09
Space Group:
P 21 21 21
5D9E validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Caulosegnin II
Gene (Uniprot):Cseg_2567
Chain IDs:A
Chain Length:19
Number of Molecules:1
Biological Source:Caulobacter segnis
UniProt ID:D5VKJ8
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
SME A MET modified residue
Ligand Molecules
CL
Primary Citation
The ring residue proline 8 is crucial for the thermal stability of the lasso peptide caulosegnin II.
Mol Biosyst 12 1106 1109 (2016)
PMID: 26863937 DOI: 10.1039/c6mb00081a

Abstact

Lasso peptides are fascinating natural products with a unique structural fold that can exhibit tremendous thermal stability. Here, we investigate factors responsible for the thermal stability of caulosegnin II. By employing X-ray crystallography, mutational analysis and molecular dynamics simulations, the ring residue proline 8 was proven to be crucial for thermal stability.

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Primary Citation of related structures
5D9E