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Fluorescence correlation spectroscopy (FCS) is becoming increasingly popular as a technique that aims at complementing live cell images with biophysical information. This article provides both a short overview over recent intracellular FCS applications and a practical guide for investigators, who are seeking to integrate FCS into live cell imaging to obtain information on particle mobility, local...
A well known function of palmitoylation is to promote protein binding to cell membranes. Until recently, it was unclear what additional roles, if any, palmitoylation has in controlling protein localization in cells. Recent studies of palmitoylated forms of the small GTPase Ras have now revealed that palmitoylation plays multiple roles in the regulation of protein trafficking, including targeting proteins...
The ability to observe protein dynamics in living cells is critical for the mechanistic understanding of highly flexible biological processes such as pre-mRNA splicing by the spliceosome. Splicing relies on intricate RNA and protein networks that are repeatedly rearranged during spliceosome assembly. Here we describe a method based on fluorescence microscopy that has been used by our and other laboratories...
RNA localization in the Xenopus oocyte is responsible for the establishment of polarity during oogenesis as well as the specification of germ layers during embryogenesis. However, the inability to monitor mRNA localization in live vertebrate oocytes has posed a major barrier to understanding the mechanisms driving directional transport. Here we describe a method for imaging MS2 tagged RNA in live...
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