Mullinamides A and B, new cyclopeptides produced by the Ruth Mullins coal mine fire isolate Streptomyces sp. RM-27-46

Xiachang Wang, Khaled A. Shaaban, Sherif I. Elshahawi, Larissa V. Ponomareva, Manjula Sunkara, Gregory C. Copley, James C. Hower, Andrew J. Morris, Madan K. Kharel, Jon S. Thorson

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Two new cyclopeptides, mullinamides A [cyclo-(-L-Gly-L-Glu-L-Val-L-Ile-L- Pro-)] and B [cyclo-(-L-Glu-L-Met-L-Pro-)] were isolated from the crude extract of terrestrial Streptomyces sp. RM-27-46 along with the three known cyclopeptides surugamide A [cyclo-(-L-Ile-D-Ile-L-Lys-L-Ile-D-Phe-D-Leu-L-Ile-D- Ala-)], cyclo-(-L-Pro-L-Phe-) and cyclo-(-L-Pro-L-Leu-). The structures of the new compounds were elucidated by the cumulative analyses of NMR spectroscopy and HRMS. Although mullinamides A and B displayed no appreciable antimicrobial/fungal activity or cytotoxicity, this study highlights the first reported antibacterial activity of surugamide A.

Original languageEnglish
Pages (from-to)571-575
Number of pages5
JournalJournal of Antibiotics
Volume67
Issue number8
DOIs
StatePublished - Aug 2014

Bibliographical note

Funding Information:
This work was supported in part by the University of Kentucky College of Pharmacy, the University of Kentucky Markey Cancer Center and the National Center for Advancing Translational Sciences (UL1TR000117).

Funding

This work was supported in part by the University of Kentucky College of Pharmacy, the University of Kentucky Markey Cancer Center and the National Center for Advancing Translational Sciences (UL1TR000117).

FundersFunder number
University of Kentucky
National Center for Advancing Translational Sciences (NCATS)UL1TR000117
University of Kentucky Markey Cancer Center

    Keywords

    • antibiotic
    • bioprospecting
    • cyclopeptide
    • natural product
    • pharmacognosy
    • surugamide

    ASJC Scopus subject areas

    • Pharmacology
    • Drug Discovery

    Fingerprint

    Dive into the research topics of 'Mullinamides A and B, new cyclopeptides produced by the Ruth Mullins coal mine fire isolate Streptomyces sp. RM-27-46'. Together they form a unique fingerprint.

    Cite this