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David Garenne et al.
Biomacromolecules, 21(7), 2808-2817 (2020-05-23)
Building genetically programmed synthetic cell systems by molecular integration is a powerful and effective approach to capture the synergies between biomolecules when they are put together. In this work, we characterized quantitatively the effects of molecular crowding on gene expression
Charlotte Larsson et al.
Analytical chemistry, 75(19), 5080-5087 (2004-01-08)
We show how the water content (and effective density) of thin adsorbed films composed of biomolecules can be determined using combined quartz crystal microbalance with dissipation monitoring (QCM-D) and surface plasmon resonance (SPR) analysis. In particular, these techniques, combined with
Jiajie Diao et al.
Nature protocols, 7(5), 921-934 (2012-05-15)
SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins are a highly regulated class of membrane proteins that drive the efficient merger of two distinct lipid bilayers into one interconnected structure. This protocol describes our fluorescence resonance energy transfer (FRET)-based single
Rajan Lamichhane et al.
Bio-protocol, 7(12) (2017-11-25)
Activation of G protein-coupled receptors (GPCRs) by agonist ligands is mediated by a transition from an inactive to active receptor conformation. We describe a novel single-molecule assay that monitors activation-linked conformational transitions in individual GPCR molecules in real-time. The receptor
John M Harrington et al.
The Journal of biological chemistry, 289(36), 24811-24820 (2014-07-20)
Haptoglobin-related protein (Hpr) is a component of a minor subspecies of high density lipoproteins (HDL) that function in innate immunity. Here we show that assembly of Hpr into HDL is mediated by its retained N-terminal signal peptide, an unusual feature
Mingming Wang et al.
Langmuir : the ACS journal of surfaces and colloids, 34(25), 7509-7518 (2018-06-01)
This article reports a high-yield procedure for preparing microsized (giant) Janus liposomes via gel-assisted lipid swelling and clustering behavior of these liposomes directed by biotin-avidin affinity binding. Confocal fluorescence microscopy reveals in detail that these new lipid colloidal particles display
Minjoung Kyoung et al.
Nature protocols, 8(1), 1-16 (2012-12-12)
This protocol describes a single vesicle-vesicle microscopy system to study Ca(2+)-triggered vesicle fusion. Donor vesicles contain reconstituted synaptobrevin and synaptotagmin-1. Acceptor vesicles contain reconstituted syntaxin and synaptosomal-associated protein 25 (SNAP-25), and they are tethered to a PEG-coated glass surface. Donor
Bianca Buchegger et al.
Analytical chemistry, 90(21), 12372-12376 (2018-10-24)
Mobility of proteins and lipids plays a major role in physiological processes. Platforms which were developed to study protein interaction between immobilized and mobile proteins suffer from shortcomings such as fluorescence quenching or complicated fabrication methods. Here we report a
Carol Cho et al.
Nature communications, 10(1), 5764-5764 (2019-12-19)
The fundamental unit of chromatin, the nucleosome, is an intricate structure that requires histone chaperones for assembly. ATAD2 AAA+ ATPases are a family of histone chaperones that regulate nucleosome density and chromatin dynamics. Here, we demonstrate that the fission yeast ATAD2
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