Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1982-7-22
pubmed:abstractText
Polyoma empty capsids and DNA interact in a cell-free system to form a polyoma-like particle (PLP). The particle is stable in high concentrations of salt and contains a DNA fragment that is protected by the capsid from the action of DNase I. The DNA extracted from PLP is heterogeneous in size. It has a mean molecular weight of 1.2 x 10(6) with a standard deviation of +/- 0.5 x 10(6). Analysis of PLP DNA with restriction endonucleases and the Southern blot technique reveals that a specific primary sequence is not required for PLP formation. Either linear, circular, or supercoiled polyoma DNA, as well as single-stranded DNA, rRNA, and the synthetic homopolymers poly(dA) . poly(dT) and poly(dG) . poly(dC) can be used for PLP formation. It is concluded that polyoma empty capsids can be used to bind and encapsidate nucleic acids differing in their primary, secondary, and superhelical tertiary structure to form, in vitro, stable polyoma-like particles.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
10
pubmed:volume
257
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6571-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Polyoma-like particle: characterization of the DNA encapsidated in vitro by polyoma empty capsids.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't