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FunctionalProteomics SIGNED

Proteomic fingerprinting of functionally characterized single synapses

Total Cost €

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EC-Contrib. €

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Partnership

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 FunctionalProteomics project word cloud

Explore the words cloud of the FunctionalProteomics project. It provides you a very rough idea of what is the project "FunctionalProteomics" about.

diversity    billions    partly    content    molecularly    underlie    performing    cognitive    ca1    biophysical    postembedding    immunolocalization    patch    recordings    connectivity    half    fixed    dynamic    photon    vitro    dramatic    determined    reveal    vivo    ca2    individual    characterization    performed    brain    nerve    proteins    functionally    synapses    regions    correlations    quantitative    relationships    imaging    fingerprints    astonishing    pyramidal    consequence    century    followed    single    shape    render    head    synaptic    types    demonstrated    investigations    composition    genetic    postsynaptic    differences    morphologically    size    cell    neuronal    heterogeneity    uniform    mglur1    hypothesis    functional    animals    clamp    our    multiple    downregulation    networks    mechanisms    revealed    alpha    causal    cells    behaving    quantify    quantal    tomography    pc    array    circuit    remarkable    molecular    hippocampal    presynaptic    created    excitable    lm    connectome    history   

Project "FunctionalProteomics" data sheet

The following table provides information about the project.

Coordinator
INSTITUTE OF EXPERIMENTAL MEDICINE - HUNGARIAN ACADEMY OF SCIENCES 

Organization address
address: Szigony utca 43
city: Budapest
postcode: 1083
website: www.koki.hu

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Hungary [HU]
 Total cost 2˙498˙750 €
 EC max contribution 2˙498˙750 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-ADG
 Funding Scheme ERC-ADG
 Starting year 2018
 Duration (year-month-day) from 2018-10-01   to  2023-09-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    INSTITUTE OF EXPERIMENTAL MEDICINE - HUNGARIAN ACADEMY OF SCIENCES HU (Budapest) coordinator 2˙498˙750.00

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 Project objective

Our astonishing cognitive abilities are the consequence of complex connectivity within our neuronal networks and the large functional diversity of excitable nerve cells and their synapses. Investigations over the past half a century revealed dramatic diversity in shape, size and functional properties among synapses established by distinct cell types in different brain regions and demonstrated that the functional differences are partly due to different molecular mechanisms. However, synaptic diversity is also observed among synapses established by molecularly and morphologically uniform presynaptic cells on molecularly and morphologically uniform postsynaptic cells. Our hypothesis is that quantitative molecular differences underlie the functional diversity of such synapses. We will focus on hippocampal CA1 pyramidal cell (PC) to mGluR1α O-LM cell synapses, which show remarkable functional and molecular heterogeneity. In vitro multiple cell patch-clamp recordings followed by quantal analysis will be performed to quantify well-defined biophysical properties of these synapses. The molecular composition of the functionally characterized single synapses will be determined following the development of a novel postembedding immunolocalization method. Correlations between the molecular content and functional properties will be established and genetic up- and downregulation of individual synaptic proteins will be conducted to reveal causal relationships. Finally, correlations of the activity history and the functional properties of the synapses will be established by performing in vivo two-photon Ca2 imaging in head-fixed behaving animals followed by in vitro functional characterization of their synapses. Our results will reveal quantitative molecular fingerprints of functional properties, allowing us to render dynamic behaviour to billions of synapses when the connectome of the hippocampal circuit is created using array tomography.

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