Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2005-3-1
pubmed:abstractText
Fluorescence resonance energy transfer (FRET) and fluorescence lifetime imaging microscopy (FLIM) were employed to study homotypic protein-protein interactions in living cells. To this end, the nucleocapsid (N) protein of tomato spotted wilt virus (TSWV) was expressed as a fusion protein with either cyan fluorescent protein (CFP) or yellow fluorescent protein (YFP). Co-expression experiments of the two fusion proteins were carried out in baby hamster kidney (BHK21) cells. Both the wild type and the fusion proteins showed a peri-nuclear localisation pattern and were observed to form aggregates. In sensitised emission experiments, energy transfer was observed to take place from CFP to YFP when the two fluorophores were fused to TSWV N protein, indicating strongly homotypic interaction of the N proteins. This was confirmed by acceptor photobleaching studies as well as by FLIM experiments. All three methods showed interactions taking place, not only in the aggregates in the peri-nuclear region, but also throughout the cytoplasm. These experiments clearly demonstrated the potential of these fluorescence methods for studying the interactions of viral proteins in living cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0166-0934
pubmed:author
pubmed:issnType
Print
pubmed:volume
125
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
15-22
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
The use of fluorescence microscopy to visualise homotypic interactions of tomato spotted wilt virus nucleocapsid protein in living cells.
pubmed:affiliation
Laboratory of Virology, Wageningen University, Binnenhaven 11, 6709 PD Wageningen, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't