Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2000-9-29
pubmed:abstractText
The green fluorescent protein (GFP) has become an invaluable marker for monitoring protein localization and gene expression in vivo. Recently a new red fluorescent protein (drFP583 or DsRed), isolated from tropical corals, has been described [Matz, M.V. et al. (1999) Nature Biotech. 17, 969-973]. With emission maxima at 509 and 583 nm respectively, EGFP and DsRed are suited for almost crossover free dual color labeling upon simultaneous excitation. We imaged mixed populations of Escherichia coli expressing either EGFP or DsRed by one-photon confocal and by two-photon microscopy. Both excitation modes proved to be suitable for imaging cells expressing either of the fluorescent proteins. DsRed had an extended maturation time and E. coli expressing this fluorescent protein were significantly smaller than those expressing EGFP. In aging bacterial cultures DsRed appeared to aggregate within the cells, accompanied by a strong reduction in its fluorescence lifetime as determined by fluorescence lifetime imaging microscopy.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
18
pubmed:volume
479
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
131-5
pubmed:dateRevised
2004-12-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
EFGP and DsRed expressing cultures of Escherichia coli imaged by confocal, two-photon and fluorescence lifetime microscopy.
pubmed:affiliation
Max Planck Institute for Biophysicial Chemistry, High Resolution Optical Microscopy Group, Göttingen, Germany. sjakobs@gwdg.de
pubmed:publicationType
Journal Article