High spatial resolution confocal microscopy of young MDCK cells stained with the lipophilic probe 1,1'-dihexadecyl-3,3,3',3'- tetramethylindocarbocyanine perchlorate (DiIC(16)) revealed a reticulated fluorescence pattern on the apical membrane. DiIC(16) was delivered as crystals to live cells to minimize possible solvent perturbations of the membrane lipids. The ratio of the integrated fluorescence ... More
Fluorescence imaging of the desorption of dye from fused silica versus silica gel.
Authors:Ludes MD, Anthony SR, Wirth MJ
Journal:Anal Chem
PubMed ID:12964753
The desorption rate constants for a cationic dye from strong adsorption sites are compared for the same chromatographic interface but for two different substrates, fused silica and chromatographic silica gel. The dye is 1,1'-didodecyl-3,3,3'3'-tetramethylindocarbocyanine perchlorate (DiI). The interface consists of acetonitrile and a hydrocarbon monolayer (C8) covalently bound to the ... More
Distance measurements within a concatamer of the plasma membrane Cl?/HCO3? exchanger, AE1.
Authors:Basu A, Mazor S, Casey JR,
Journal:Biochemistry
PubMed ID:20828148
'AE1, which exists in the erythrocyte plasma membrane as a noncovalent dimer, facilitates transmembrane Cl?/HCO3? exchange. Here a concatamer of AE1 (two AE1 monomers fused via a two-residue linker to form an intramolecular dimer) was designed to facilitate fluorescence resonance energy transfer (FRET) studies. The concatameric protein (AE1·AE1) was expressed ... More
Characterization of myenteric interneurons with somatostatin immunoreactivity in the guinea-pig small intestine.
Authors:Song ZM, Brookes SJ, Ramsay GA, Costa M
Journal:Neuroscience
PubMed ID:9276502
'The projections, connections, morphology and electrophysiological features of the myenteric interneurons with somatostatin immunoreactivity in the guinea-pig small intestine have been established using retrograde tracing, immunohistochemistry, confocal microscopy and intracellular recording. After application of the fluorescent dye, 1,1''-didodecyl-3,3,3'',3''-tetramethyl indocarbocyanine perchlorate (DiI), to the myenteric plexus, up to 900 nerve cell ... More