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Formation and stability of synaptic receptor domains.
Haselwandter CA, Calamai M, Kardar M, Triller A, da Silveira RA. Haselwandter CA, et al. Among authors: triller a. Phys Rev Lett. 2011 Jun 10;106(23):238104. doi: 10.1103/PhysRevLett.106.238104. Epub 2011 Jun 8. Phys Rev Lett. 2011. PMID: 21770547
Neurotransmitter receptor molecules, concentrated in postsynaptic domains along with scaffold and a number of other molecules, are key regulators of signal transmission across synapses. Combining experiment and theory, we develop a quantitative description of synapt …
Neurotransmitter receptor molecules, concentrated in postsynaptic domains along with scaffold and a number of other molecules, are ke …
An aggregation-removal model for the formation and size determination of post-synaptic scaffold domains.
Ranft J, Almeida LG, Rodriguez PC, Triller A, Hakim V. Ranft J, et al. Among authors: triller a. PLoS Comput Biol. 2017 Apr 24;13(4):e1005516. doi: 10.1371/journal.pcbi.1005516. eCollection 2017 Apr. PLoS Comput Biol. 2017. PMID: 28437460 Free PMC article.
We also predict the existence of extrasynaptic clusters with a characteristic size distribution that significantly contribute to the size fluctuations of synaptic domains. ...At a general level, our results highlight aggregation with removal as a non-equilibr …
We also predict the existence of extrasynaptic clusters with a characteristic size distribution that significantly contribute to the …
Mapping the energy and diffusion landscapes of membrane proteins at the cell surface using high-density single-molecule imaging and Bayesian inference: application to the multiscale dynamics of glycine receptors in the neuronal membrane.
Masson JB, Dionne P, Salvatico C, Renner M, Specht CG, Triller A, Dahan M. Masson JB, et al. Among authors: triller a. Biophys J. 2014 Jan 7;106(1):74-83. doi: 10.1016/j.bpj.2013.10.027. Biophys J. 2014. PMID: 24411239 Free PMC article.
Here, we present a method combining high-density single-molecule imaging and statistical inference to separately map the diffusion and energy landscapes of membrane proteins across the cell surface at ~100 nm resolution (with acquisition of a few minutes). ...Overal …
Here, we present a method combining high-density single-molecule imaging and statistical inference to separately map the diffusion an …
In situ visualization and dynamics of newly synthesized proteins in rat hippocampal neurons.
Dieterich DC, Hodas JJ, Gouzer G, Shadrin IY, Ngo JT, Triller A, Tirrell DA, Schuman EM. Dieterich DC, et al. Among authors: triller a. Nat Neurosci. 2010 Jul;13(7):897-905. doi: 10.1038/nn.2580. Epub 2010 Jun 13. Nat Neurosci. 2010. PMID: 20543841 Free PMC article.
After a brief incubation with azidohomoalanine or homopropargylglycine, a robust fluorescent signal was detected in somata and dendrites. ...The newly synthesized proteins showed a broad range of diffusive behaviors, as would be expected for a pool of …
After a brief incubation with azidohomoalanine or homopropargylglycine, a robust fluorescent signal was detected in somata and …
Radixin regulates synaptic GABAA receptor density and is essential for reversal learning and short-term memory.
Hausrat TJ, Muhia M, Gerrow K, Thomas P, Hirdes W, Tsukita S, Heisler FF, Herich L, Dubroqua S, Breiden P, Feldon J, Schwarz JR, Yee BK, Smart TG, Triller A, Kneussel M. Hausrat TJ, et al. Among authors: triller a. Nat Commun. 2015 Apr 20;6:6872. doi: 10.1038/ncomms7872. Nat Commun. 2015. PMID: 25891999 Free PMC article.
Neurotransmitter receptor density is a major variable in regulating synaptic strength. Receptors rapidly exchange between synapses and intracellular storage pools through endocytic recycling. ...Here we report a novel mechanism that regulates adjustable plasma membr …
Neurotransmitter receptor density is a major variable in regulating synaptic strength. Receptors rapidly exchange between synapses an …
Homeostatic regulation of synaptic GlyR numbers driven by lateral diffusion.
Lévi S, Schweizer C, Bannai H, Pascual O, Charrier C, Triller A. Lévi S, et al. Among authors: triller a. Neuron. 2008 Jul 31;59(2):261-73. doi: 10.1016/j.neuron.2008.05.030. Neuron. 2008. PMID: 18667154
In the spinal cord, most inhibitory synapses have a mixed glycine-GABA phenotype. Using a pharmacological approach, we report an NMDAR activity-dependent regulation of the mobility of GlyRs but not GABA(A)Rs at inhibitory synapses in cultured rat spinal cord …
In the spinal cord, most inhibitory synapses have a mixed glycine-GABA phenotype. Using a pharmacological approach, we report …
Modeling synaptic dynamics driven by receptor lateral diffusion.
Holcman D, Triller A. Holcman D, et al. Among authors: triller a. Biophys J. 2006 Oct 1;91(7):2405-15. doi: 10.1529/biophysj.106.081935. Epub 2006 Jul 14. Biophys J. 2006. PMID: 16844759 Free PMC article.
The synaptic weight between a pre- and a postsynaptic neuron depends in part on the number of postsynaptic receptors. On the surface of neurons, receptors traffic by random motion in and out from a microstructure called the postsynaptic density (PSD). ...Usin …
The synaptic weight between a pre- and a postsynaptic neuron depends in part on the number of postsynaptic receptors. On the s …
Cytoskeleton regulation of glycine receptor number at synapses and diffusion in the plasma membrane.
Charrier C, Ehrensperger MV, Dahan M, Lévi S, Triller A. Charrier C, et al. Among authors: triller a. J Neurosci. 2006 Aug 16;26(33):8502-11. doi: 10.1523/JNEUROSCI.1758-06.2006. J Neurosci. 2006. PMID: 16914675 Free PMC article.
Lateral diffusion of neurotransmitter receptors in and out of synapses has been postulated as a core mechanism for rapid changes in receptor number at synapses during plastic processes. ...
Lateral diffusion of neurotransmitter receptors in and out of synapses has been postulated as a core mechanism for rapid changes in r …
Regulation of gephyrin assembly and glycine receptor synaptic stability.
Bedet C, Bruusgaard JC, Vergo S, Groth-Pedersen L, Eimer S, Triller A, Vannier C. Bedet C, et al. Among authors: triller a. J Biol Chem. 2006 Oct 6;281(40):30046-56. doi: 10.1074/jbc.M602155200. Epub 2006 Aug 1. J Biol Chem. 2006. PMID: 16882665
Gephyrin oligomerization could thus create a submembrane lattice providing GlyR-binding sites. We investigated the relationships between the stability of cell surface GlyR and the ability of gephyrin splice variants to form oligomers. ...
Gephyrin oligomerization could thus create a submembrane lattice providing GlyR-binding sites. We investigated the relationships betw …
Quantitative nanoscopy of inhibitory synapses: counting gephyrin molecules and receptor binding sites.
Specht CG, Izeddin I, Rodriguez PC, El Beheiry M, Rostaing P, Darzacq X, Dahan M, Triller A. Specht CG, et al. Among authors: triller a. Neuron. 2013 Jul 24;79(2):308-21. doi: 10.1016/j.neuron.2013.05.013. Neuron. 2013. PMID: 23889935
We observed a close correspondence between the spatial organization of gephyrin scaffolds and glycine receptors at spinal cord synapses. ...The stoichiometry between gephyrin molecules and receptor binding sites was approximately 1:1, consistent with a two-dimension …
We observed a close correspondence between the spatial organization of gephyrin scaffolds and glycine receptors at spinal cord synaps …
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