Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1993-9-17
pubmed:abstractText
Rolling circle-replicating plasmids constitute a group of small, promiscuous multicopy replicons spread among eubacteria. Until recently, rolling circle replication seemed to be limited to small plasmids from Gram-positive hosts and to single-stranded bacteriophages from Gram-negative bacteria. However, characterization of two small plasmids from Gram-negative hosts has shown that this replication mechanism is general among eubacteria. This review focuses on a family of highly related promiscuous plasmids that replicate by the rolling circle mechanism, and that have been isolated from various Gram-positive bacteria and from the Gram-negative bacterium Helicobacter. They all share homologies at the leading-strand origins and at the initiator of replication proteins. The plasmids of this family have directly repeated sequences at their plus origin of replication, which is located 5' from the start point of the mRNA for the initiation of replication protein. Replication is controlled by an antisense RNA and by a transcriptional repressor protein. The features and regulatory circuits of replication of this plasmid family seem to be unique among rolling circle-replicating plasmids. Members of this family replicate autonomously in Gram-positive and -negative hosts.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0950-382X
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:geneSymbol
bind, cop, nic, palA, palU, rep, ssoA, ssoU
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
789-96
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:8355606-Amino Acid Sequence, pubmed-meshheading:8355606-Base Sequence, pubmed-meshheading:8355606-Consensus Sequence, pubmed-meshheading:8355606-DNA, Bacterial, pubmed-meshheading:8355606-DNA, Circular, pubmed-meshheading:8355606-DNA Replication, pubmed-meshheading:8355606-Gene Expression Regulation, Bacterial, pubmed-meshheading:8355606-Genes, Bacterial, pubmed-meshheading:8355606-Gram-Negative Bacteria, pubmed-meshheading:8355606-Gram-Positive Bacteria, pubmed-meshheading:8355606-Helicobacter, pubmed-meshheading:8355606-Models, Genetic, pubmed-meshheading:8355606-Molecular Sequence Data, pubmed-meshheading:8355606-Plasmids, pubmed-meshheading:8355606-Repetitive Sequences, Nucleic Acid, pubmed-meshheading:8355606-Sequence Alignment, pubmed-meshheading:8355606-Sequence Homology, pubmed-meshheading:8355606-Species Specificity, pubmed-meshheading:8355606-Transformation, Bacterial
pubmed:year
1993
pubmed:articleTitle
Rolling circle-replicating plasmids from gram-positive and gram-negative bacteria: a wall falls.
pubmed:affiliation
Centro de Investigaciones Biológicas, CSIC, Madrid, Spain.
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't