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    In silico analysis highlights the frequency and diversity of type 1 lantibiotic gene clusters in genome sequenced bacteria

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    Author
    Marsh, Alan J.
    O'Sullivan, Orla cc
    Ross, R Paul
    Cotter, Paul D.
    Hill, Colin
    Keyword
    Lantibiotic gene clusters
    Date
    30/11/2010
    
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    URI
    http://hdl.handle.net/11019/240
    Citation
    Alan J Marsh, Orla O'Sullivan, R Paul Ross, Paul D Cotter and Colin Hill. In silico analysis highlights the frequency and diversity of type 1 lantibiotic gene clusters in genome sequenced bacteria. BMC Genomics. 2010, 11(1):679. DOI:10.1186/1471-2164-11-679
    Abstract
    Background: Lantibiotics are lanthionine-containing, post-translationally modified antimicrobial peptides. These peptides have significant, but largely untapped, potential as preservatives and chemotherapeutic agents. Type 1 lantibiotics are those in which lanthionine residues are introduced into the structural peptide (LanA) through the activity of separate lanthionine dehydratase (LanB) and lanthionine synthetase (LanC) enzymes. Here we take advantage of the conserved nature of LanC enzymes to devise an in silico approach to identify potential lantibiotic-encoding gene clusters in genome sequenced bacteria. Results: In total 49 novel type 1 lantibiotic clusters were identified which unexpectedly were associated with species, genera and even phyla of bacteria which have not previously been associated with lantibiotic production. Conclusions: Multiple type 1 lantibiotic gene clusters were identified at a frequency that suggests that these antimicrobials are much more widespread than previously thought. These clusters represent a rich repository which can yield a large number of valuable novel antimicrobials and biosynthetic enzymes.
    Funder
    Science Foundation Ireland
    ae974a485f413a2113503eed53cd6c53
    http://dx.doi.org/10.1186/1471-2164-11-679
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    Teagasc publications in Biomed Central
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