WebFluorescence protease protection (FPP) assays with TRPM1-GFP fusions in heterologous cells revealed that the N and C termini are both accessible to the cytoplasm, consistent with the transmembrane domain topology of related TRP channels. These results indicate that the majority of TRPM1 is present in the ER, from which it can potentially be ... WebA simple technique called fluorescence protease protection (FPP) is presented, which permits the determination of membrane protein topology in living cells. ... White, C., & …
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WebJun 1, 2024 · We therefore took advantage of experimental Fluorescence Protease Protection (FPP) assay to assess the number and localization of TM domains of MBOAT7. The FPP assay is based on the proteinase K activity after plasma membrane permeabilization conferred by digitonin. In principle, a rapid decay of the fluorescence … Webtion of the mPR N-terminus, we used the fluorescence protease protection (FPP) assay, which permits the determination of membrane protein topology in living cells. FPP employs the spa-tially confined action of trypsin following digitonin treatment to permeabilize only the PM while leaving intracellular organelles intact [20] (Fig 1C). hide money during divorce
Holger LORENZ Universität Heidelberg, Heidelberg
WebApr 13, 2024 · Heterogeneous protease biosensors show high sensitivity and selectivity but usually require the immobilization of peptide substrates on a solid interface. Such methods exhibit the disadvantages of complex immobilization steps and low enzymatic efficiency induced by steric hindrance. In this work, we proposed an immobilization-free strategy for … WebFeb 17, 2006 · Here we describe a new fluorescence-based technique, fluorescence protease protection (FPP), for investigating the topology of proteins and for localizing protein subpopulations within the... WebOct 1, 2007 · Fluorescence protease protection assay. The topology of protein localization on the surface of or within cytoplasmic vesicles was evaluated with the fluorescence protease protection (FPP) assay essentially as described by Lorenz et al. ().Briefly, Hep3B cultures transfected with the STAT3-GFP construct in six-well plates … hide money from fafsa