Structure of a D2 dopamine receptor-G-protein complex in a lipid membrane
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Olfaction appears to be mediated by a large family of odorant receptors (ORs) that accounts for ~ 1% of the human genome [1–4]. The functional characterization of these receptors has so far been hindered by their poor functional expression in the plasma me ...
How membrane receptors transduce external signals across the membrane and activate intracellular processes is a key question for fundamental research and for therapeutic purposes. Reliable in situ investigations requiest to preserve the full biological act ...
Sequential stages in the life cycle of the ionotropic 5-HT3 receptor (5-HT3R) were resolved temporally and spatially in live cells by multicolor fluorescence confocal microscopy. The insertion of the enhanced cyan fluorescent protein into the large intrace ...
In this paper, we have investigated the effects of the pore-forming toxin aerolysin, produced by Aeromonas hydrophila, on mammalian cells. Our data indicate that the protoxin binds to an 80-kD glycosyl-phosphatidylinositol (GPI)-anchored protein on BHK cel ...
G protein-coupled receptors (GPCRs) constitute a large class of seven transmembrane proteins, which bind selectively agonists or antagonists with important consequences for cellular signaling and function. Comprehension of the mol. details of ligand bindin ...
Membrane proteins fulfill many central functions in the biological membrane. The insertion process of these proteins and their structure, which are intimately linked to their function, are not yet well understood. As a model we studied three proteins recon ...
VIP, glucagon or several other neuropeptides were applied to intact retinae in vitro. VIP was found to be a very potent stimulator of cyclic AMP production in rabbit retina, whereas glucagon was efficient in pigeon retina. Attempts to modify the VIP-induce ...
Photoaffinity and fluorescent analogues of the 70-amino acid chemokine macrophage inflammatory protein-1alpha (MIP-1alpha) were designed, synthesized, characterized, and applied to probe MIP-1alpha interactions with the chemokine receptors CCR1 and CCR5. T ...
The influence of chronic dietary lithium administration was evaluated on dopamine receptor supersensitivity in the rat corpus striatum. Supersensitivity was induced with either unilateral destruction of dopamine-containing fibers in the nigrostriatal pathw ...
Spontaneous locomotor activity and dopaminergic responsivity were assessed after long-term dietary treatment with the anti-manic drug lithium. Chronic dietary Li administration was not accompanied by the toxicities often reported with other modes of admini ...