Linked Life Data

8030207

Source:http://linkedlifedata.com/resource/pubmed/id/8030207

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1994-8-11
pubmed:abstractText
The gene III product (P15) of cauliflower mosaic virus (CaMV) is a DNA binding protein in which the DNA binding activity is located on its C-terminal part. In previous work, a C-terminal processed form of P15 (P11) was detected in purified viral particles as a minor component. The full-length P15 was shown to be present and to be matured, possibly by a cysteine proteinase, in CaMV replication complexes isolated from infected turnip leaves. In this paper, we have shown that a virion-enriched fraction obtained from such replication complexes by size exclusion chromatography contained most of the P15 in its uncleaved form and was enriched in the activity responsible for its proteolysis. This enabled us to characterize better the proteinase activity (temperature and pH optimum; effect of specific inhibitors) responsible for P15 cleavage and to confirm that it corresponds to a cysteine proteinase. Based upon these observations, a purification procedure for CaMV particles was devised which impaired the cleavage of P15 into P11 and allowed the isolation of virions containing almost exclusively the noncleaved form. This finding supports our hypothesis that the CaMV gene III product could be involved in the folding of the viral genome during encapsidation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0042-6822
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
202
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1043-5
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
The full-length product of cauliflower mosaic virus open reading frame III is associated with the viral particle.
pubmed:affiliation
Institut de Biologie Moléculaire des Plantes, CNRS, Université Louis Pasteur, Strasbourg, France.
pubmed:publicationType
Journal Article