ISDA

Entry Detail

PDB ID:

2N5C

Keywords:

CELL INVASION

Title:

Solution NMR structure of the lasso peptide chaxapeptin

Biological Source:

Source Organism:

Streptomyces leeuwenhoekii

PDB Version:

Deposition Date:

2015-07-14

Release Date:

2015-10-07

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Calculated:

Conformers Submitted:

Selection Criteria:

structures with acceptable covalent geometry

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:chaxapeptin
Chain IDs:A
Chain Length:15
Number of Molecules:1
Biological Source:Streptomyces leeuwenhoekii

UniProt ID:A0A0F7VRL1

Ligand Molecules

Primary Citation

Chaxapeptin, a Lasso Peptide from Extremotolerant Streptomyces leeuwenhoekii Strain C58 from the Hyperarid Atacama Desert.

Elsayed, S.S, Trusch, F, Deng, H, Raab, A, Prokes, I, Busarakam, K, Asenjo, J.A, Andrews, B.A, van West, P, Bull, A.T, Goodfellow, M, Yi, Y, Ebel, R, Jaspars, M, Rateb, M.E.Show

J.Org.Chem. 80 10252 10260 (2015)

PMID: 26402731 DOI: 10.1021/acs.joc.5b01878

Abstact

Lasso peptides are ribosomally synthesized and post-translationally modified peptides (RiPPs) that possess a unique "lariat knot" structural motif. Genome mining-targeted discovery of new natural products from microbes obtained from extreme environments has led to the identification of a gene cluster directing the biosynthesis of a new lasso peptide, designated as chaxapeptin 1, in the genome of Streptomyces leeuwenhoekii strain C58 isolated from the Atacama Desert. Subsequently, 1 was isolated and characterized using high-resolution electrospray ionization mass spectrometry and nuclear magnetic resonance methods. The lasso nature of 1 was confirmed by calculating its nuclear Overhauser effect restraint-based solution structure. Chaxapeptin 1 displayed a significant inhibitory activity in a cell invasion assay with human lung cancer cell line A549.

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