Linked Life Data

14695518

Source:http://linkedlifedata.com/resource/pubmed/id/14695518

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2003-12-25
pubmed:abstractText
Polyketides of the pederin group are highly potent antitumor compounds found in terrestrial beetles and marine sponges. Pederin is used by beetles of the genera Paederus and Paederidus as a chemical defense. We have recently identified a group of putative pederin biosynthesis genes and localized them to the genome of an as yet unculturable Pseudomonas sp. symbiont, the likely true pederin producer. However, this polyketide synthase cluster lacks several genes expected for pederin production. Here we report an additional polyketide synthase encoded on a separate region of the symbiont genome. It contains at least three novel catalytic domains that are predicted to be involved in pederin chain initiation and the formation of an unusual exomethylene bond. The region is bordered by mobility pseudogenes; this suggests that gene transposition led to the disjointed cluster organization. With this work, all putative pederin genes have been identified. Their heterologous expression in a culturable bacterium will provide important insights into how sustainable sources of invertebrate-derived drug candidates can be created.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1439-4227
pubmed:author
pubmed:issnType
Print
pubmed:day
3
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
93-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Unprecedented diversity of catalytic domains in the first four modules of the putative pederin polyketide synthase.
pubmed:affiliation
Max Planck Institute for Chemical Ecology, Department of Bioorganic Chemistry, 07745 Jena, Germany. piel@ice.mpg.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't