Linked Life Data

8760912

Source:http://linkedlifedata.com/resource/pubmed/id/8760912

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1996-9-30
pubmed:databankReference
pubmed:abstractText
The standard strategies of genome sequencing based on lambda-vector or cosmid libraries are only partially applicable to AT-rich Gram-positive bacteria because of the problem of instability of their chromosomal DNA in heterologous hosts like Escherichia coli. One complete collection of ordered clones known for such bacteria is that of Bacillus subtilis, established by using yeast artificial chromosomes (YACs). This paper reports the results of the direct use of one of the YAC clones from the above collection for the sequencing of the region cloned in it. The strategy applied consisted of the following: (i) construction of M13 banks of the partially purified YAC DNA and sequencing of 800 M13 clones chosen at random; (ii) directed selection of M13 clones to sequence by using marginal contig fragments as hybridization probes; (iii) direct sequencing of joining PCR fragments obtained by combinations of primers corresponding to the ends of representative contigs. The complete 104,109 bp insert sequence of this YAC clone was thus established. The strategy used allowed us to avoid resequencing the two largest, previously sequenced, contigs (13,695 and 20,303 bp) of the YAC insert. We propose that the strategy used can be applied to the sequencing of the whole bacterial genome without intermediate cloning, as well as for larger inserts of eukaryotic origin cloned in YACs. Sequencing of the insert of the YAC clone 15-6B allowed us to establish the contiguous sequence of 127 kb from spollA to kdg. The organization of the newly determined region is presented. Of the 138 ORFs identified in the spollA-kdg region, 57 have no clear putative function from their homology to proteins in the databases.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1350-0872
pubmed:author
pubmed:issnType
Print
pubmed:volume
142 ( Pt 8)
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2005-16
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Sequence analysis of the Bacillus subtilis chromosome region between the serA and kdg loci cloned in a yeast artificial chromosome.
pubmed:affiliation
Laboratoire de Génétique Microbienne, Institut National de la Recherche Agronomique, Jouy en Josas, France. sorokine@biotec.jouy.inra.fr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't