EBIODIP

The emergence of bioenergetic diversity in prokaryotes

Coordinatore	"BIOMEDICAL RESEARCH FOUNDATION, ACADEMY OF ATHENS"    more  Organization address address: Soranou Efesiou 4 city: ATHENS postcode: 11527 contact info Titolo: Mr. Nome: Dimitris Cognome: Raptis Email: send email Telefono: 302107000000 Fax: 302107000000
Nazionalità Coordinatore	Greece [EL]
Totale costo	215˙701 €
EC contributo	215˙701 €
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-2011-IEF
Funding Scheme	MC-IEF
Anno di inizio	2013
Periodo (anno-mese-giorno)	2013-03-01   -   2015-02-28

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	"BIOMEDICAL RESEARCH FOUNDATION, ACADEMY OF ATHENS"  Organization address address: Soranou Efesiou 4 city: ATHENS postcode: 11527 contact info Titolo: Mr. Nome: Dimitris Cognome: Raptis Email: send email Telefono: 302107000000 Fax: 302107000000	EL (ATHENS)	coordinator	215˙701.20

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 Obiettivo del progetto (Objective)

'Prokaryotes are characterised by an amazing metabolic diversity, which allows them to persist in diverse and often extreme habitats. Some are able to use light or organic matter to harvest energy and fix carbon, while others utilise chemo- or lithotrophic modes which use the redox potential of molecules found in their particular environment to harness energy for their survival. Molecular evolution studies, coupled to data from the geologic record, indicate that the variety of bioenergetic pathways seen in extant prokaryotes originated within the first billion years of life on Earth. While each pathway has been studied in considerable detail in isolation, not much is known about their relative evolutionary relationships. How did this metabolic diversity evolve? Did each pathway evolve independently or did they all evolve from a common ancestral metabolic mode? As in organismal evolution, it is likely that parts of pre-existing pathways were co-opted to evolve into new pathways. The aim is to test this hypothesis through comparative genomics and phylogenetic analysis of the core protein complexes involved in energy metabolism. Apart from fermentation, most bioenergetic pathways have a similar general structure, with an electron transport chain composed of protein complexes acting as electron donors and acceptors, as well as a central cytochrome complex, mobile electron carriers, and an ATP synthase. Therefore, the different protein complexes that participate in distinct electron transport chains will be compared to each other, to establish their homology and evolutionary relationships. This analysis will yield insights into the origin of key innovations and the evolutionary flexibility of electron carriers, with potential applications in microbial fuel cell technology. A database to facilitate the comparison of bioenergetic pathways will also be constructed, and metagenomic data will be examined for the identification of novel bioenergetic enzymes.'