Three new Drosophila markers of intracellular membranes.
The need for cellular markers that permit a quick and accurate evaluation of a protein's subcellular localization has increased with the surge of new data generated by the Drosophila genome project. In this report, we present three ubiquitously expressed Drosophila transgenes that expressed a green fluorescent protein variant (enhanced yellow fluorescent protein) that has been targeted to different intracellular membrane targets: the Golgi apparatus, mitochondria, and endoplasmic reticulum. These markers serve as an internal standard for characterizing a protein's subcellular localization or as a means of tracking the dynamics of intracellular organelles during normal or abnormal cellular or developmental processes. We have also examined fixation artifacts using these constructs to illustrate the effects that fixation and permeabilization have on intracellular membrane organization.
LaJeunesse
Dennis Richard
DR
University of North Carolina Greensboro, Department of Biology, 231 Eberhart Bldg., Greensboro, NC 27402, USA. drlajeun@uncg.edu
Buckner
Stephanie M
SM
Lake
Jeffrey
J
Na
Charles
C
Pirt
Amanda
A
Fromson
Kathryn
K
D000818:Animals; D030801:Animals, Genetically Modified / Q000235:genetics / Q000378:metabolism; D015415:Biomarkers / Q000032:analysis; D029721:Drosophila Proteins / Q000032:analysis / Q000235:genetics* / Q000378:metabolism*; D004331:Drosophila melanogaster / Q000235:genetics / Q000378:metabolism; D007425:Intracellular Membranes / Q000378:metabolism*; D008565:Membrane Proteins / Q000235:genetics* / Q000378:metabolism*; D008856:Microscopy, Fluorescence / Q000379:methods*; D011993:Recombinant Fusion Proteins / Q000032:analysis / Q000235:genetics / Q000378:metabolism
D015415:Biomarkers; D029721:Drosophila Proteins; D008565:Membrane Proteins; D011993:Recombinant Fusion Proteins