Linked Life Data

14687969

Source:http://linkedlifedata.com/resource/pubmed/id/14687969

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2003-12-22
pubmed:abstractText
Myxobacteria increasingly gain attention as a source of bioactive natural products. The genus Sorangium produces almost half of the secondary metabolites isolated from these microorganisms. Nevertheless, genetic systems for Sorangium strains are poorly developed, which makes the identification of the genes directing natural product biosynthesis difficult. Using biparental and triparental mating, we have developed methodologies for DNA transfer from Escherichia coli via conjugation for the genome sequencing model strain So ce56 and the secondary metabolite multiproducing strain So ce12. The conjugation protocol developed for strain So ce56 is not applicable to other Sorangium strains. Crucial points for the conjugation are the ratio of E. coli and Sorangium cellulosum cells, the choice of liquid or solid medium, the time used for the conjugation process and antibiotic selection in liquid medium prior to the plating of cells. A mariner-based transposon containing a hygromycin resistance gene was generated and used as the selectable marker for S. cellulosum. The transposon randomly integrates into the chromosome of both strains. As a proof of principle, S. cellulosum So ce12 transposon mutants were screened using an overlay assay to target the chivosazole biosynthetic gene cluster.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0168-1656
pubmed:author
pubmed:issnType
Print
pubmed:day
8
pubmed:volume
107
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
29-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Critical variations of conjugational DNA transfer into secondary metabolite multiproducing Sorangium cellulosum strains So ce12 and So ce56: development of a mariner-based transposon mutagenesis system.
pubmed:affiliation
Gesellschaft für Biotechnologische Forschung mbH (GBF), Mascheroder Weg 1, 38124 Braunschweig, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't