Solution NMR structure of the lasso peptide chaxapeptinSolution NMR structure of the lasso peptide chaxapeptin

Structural highlights

2n5c is a 1 chain structure with sequence from Streptomyces leeuwenhoekii. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:Solution NMR, 15 models
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

A0A0F7VRL1_STRLW

Publication Abstract from PubMed

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.

Chaxapeptin, a Lasso Peptide from Extremotolerant Streptomyces leeuwenhoekii Strain C58 from the Hyperarid Atacama Desert.,Elsayed SS, Trusch F, Deng H, Raab A, Prokes I, Busarakam K, Asenjo JA, Andrews BA, van West P, Bull AT, Goodfellow M, Yi Y, Ebel R, Jaspars M, Rateb ME J Org Chem. 2015 Sep 24. PMID:26402731[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Elsayed SS, Trusch F, Deng H, Raab A, Prokes I, Busarakam K, Asenjo JA, Andrews BA, van West P, Bull AT, Goodfellow M, Yi Y, Ebel R, Jaspars M, Rateb ME. Chaxapeptin, a Lasso Peptide from Extremotolerant Streptomyces leeuwenhoekii Strain C58 from the Hyperarid Atacama Desert. J Org Chem. 2015 Sep 24. PMID:26402731 doi:http://dx.doi.org/10.1021/acs.joc.5b01878
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