RNABIC

"Structure, assembly and metal ion binding properties of the catalytic core of a group II intron ribozyme."

Coordinatore	UNIVERSITAET ZUERICH    more  Organization address address: Raemistrasse 71 city: ZURICH postcode: 8006 contact info Titolo: Prof. Nome: Roland K. O. Cognome: Sigel Email: send email Telefono: -6354655 Fax: -6356805
Nazionalità Coordinatore	Switzerland [CH]
Totale costo	0 €
EC contributo	180˙801 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-IEF-2008
Funding Scheme	MC-IEF
Anno di inizio	2009
Periodo (anno-mese-giorno)	2009-12-01   -   2011-11-30

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	UNIVERSITAET ZUERICH  Organization address address: Raemistrasse 71 city: ZURICH postcode: 8006 contact info Titolo: Prof. Nome: Roland K. O. Cognome: Sigel Email: send email Telefono: -6354655 Fax: -6356805	CH (ZURICH)	coordinator	180˙801.44

Mappa

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 Obiettivo del progetto (Objective)

'Group II introns are one class of naturally occurring catalytic RNAs, ranging between 600 and thousands of nucleotides in length. These ribozymes catalyze a variety of reactions, among which the self splicing activity is the most prominent one. These large molecular machines are found primarily in organellar genes of plants, fungi and lower eukaryotes, but also in many bacteria. Metal ions are crucial for folding and activity of catalytic RNA molecules, however their structural and mechanicistic roles are poorly understood. Many biochemical studies have been performed in the past, but few structural information is available on group II intron ribozymes. Here we plan to structurally characterize by NMR the kappa-zeta region of domain 1 of the group IIB intron Sc.ai5gamma, originating from the cox1 gene in yeast mitochondria, both in the absence and presence of metal ions, in addition to investigate its docking to domain 5. The kappa-zeta region is the most central part of these ribozymes as not only it represents the nucleation core of intron folding but its complex with domain 5 comprises the largest part of the catalytic core. This dual role underlines the significance of any new information on structure, metal ion binding and domain assembly gained of these fascinating molecules, which are considered ancestors not only of the spliceosome but also of large part of the eukaryotic genome. Belonging to action 2 of the FP7 “Work Program-PEOPLE” this project intends to train an experienced researcher in the (for her) novel fascinating field of “Coordination Chemistry of nucleic acids”, a field at the interface between Chemistry and Life Science, two different Marie Curie panels.'