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SPLICEOSACT SIGNED

Biochemical and CryoEM studies of spliceosome activation.

Total Cost €

0

EC-Contrib. €

0

Partnership

0

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 SPLICEOSACT project word cloud

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

transition    captured    details    electron    active    lost    exons    particle    technological    characterization    manner    intron    catalyzed    site    microscopy    recruited    consists    uses    gigantic    host    excitement    u5    extensive    maturation    mrna    competent    group    splicing    u6    fundamental    yeast    molecular    consisting    concomitant    u4    centre    regarding    successive    assembled    undergoes    em    ligation    snrnps    thanks    reactive    rna    cycle    resolution    cryoem    compositional    catalytic    earlier    de    assembles    novo    correct    community    catalysis    filling    scarcity    unraveling    ribonucleoprotein    combination    biological    removal    spliceosomes    series    single    formed    complexes    perform    u1    activation    reactions    gap    pre    conformational    mrnas    stages    u2    introns    discrete    stepwise    catalytically    biochemical    atomic    transesterification    stabilization    solved    eukaryotic    positioning    questions    structures    created    spliceosome    visualize    mechanistic    groups   

Project "SPLICEOSACT" data sheet

The following table provides information about the project.

Coordinator
UNITED KINGDOM RESEARCH AND INNOVATION 

There are not information about this coordinator. Please contact Fabio for more information, thanks.

 Coordinator Country United Kingdom [UK]
 Total cost 195˙454 €
 EC max contribution 195˙454 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2017
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2019
 Duration (year-month-day) from 2019-03-01   to  2021-02-28

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNITED KINGDOM RESEARCH AND INNOVATION UK (SWINDON) coordinator 195˙454.00
2    MEDICAL RESEARCH COUNCIL UK (SWINDON) coordinator 0.00

Map

 Project objective

Pre-mRNA splicing is a fundamental maturation step of eukaryotic mRNAs that consists of the removal of introns and the concomitant ligation of exons by two successive transesterification reactions. This complex biological process is catalyzed by the spliceosome, a gigantic ribonucleoprotein particle that assembles de novo on each intron and uses a single RNA-based active site to perform both reactions. The spliceosome is composed of five snRNPs (U1, U2, U4, U5, U6) that are recruited to pre-mRNAs in a stepwise manner. When a pre-catalytic spliceosome, consisting of all five snRNPs, is formed on a pre-mRNA it has no pre-existing active site and undergoes extensive compositional and conformational changes to become “catalytically competent”. During this transition, two snRNPs (U1 and U4) are lost and several new factors are recruited, ensuring the formation and stabilization of the active site as well as the correct positioning of the pre-mRNA’s reactive groups in the catalytic centre. Thanks to recent technological advances in Electron Microscopy (EM), a series of cryoEM structures of fully assembled “active” spliceosomes at atomic resolution have been solved in the host group and elsewhere, in the past two years. These structures, which have created much excitement in the RNA community, visualize the spliceosome during each step of the catalytic cycle and allow a mechanistic understanding of catalysis. However, due to the scarcity of high-resolution information on earlier complexes, many questions remain regarding spliceosome activation. My project aims at filling a gap in our understanding of pre-mRNA splicing by unraveling the molecular details of spliceosome activation. To that end, I will use a combination of biochemical characterization and cryoEM to study yeast spliceosome captured at discrete early stages of activation.

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The information about "SPLICEOSACT" are provided by the European Opendata Portal: CORDIS opendata.

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