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EcolMetabOrigin

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The Energetics and Habitat of Metabolic Origin

Life is a chemical reaction. Over 1000 individual reactions are driven in the direction of cell growth by the coupling of biosyntheses to environmentally available exergonic reactions that are harnessed by a handful of enzymes in... ver más

31/10/2026

UDUS

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

HEINRICH-HEINE-UNIVERSITAET DUESSELDORF No se ha especificado una descripción o un objeto social para esta compañía.

Fecha límite participación Sin fecha límite de participación.

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Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2021-05-01

ERC-2020-ADG: ERC ADVANCED GRANT

I+D

Cerrada hace 4 años

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2 Participantes

UDUS

2.49M€ | Lider

GRIÑO ECOLOGIC

366.54K€ | Participante

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Duración del proyecto: 65 meses Fecha Inicio: 2021-05-01
Fecha Fin: 2026-10-31

Líder del proyecto

HEINRICH-HEINE-UNIVERSITAET DUESSELDORF No se ha especificado una descripción o un objeto social para esta compañía.

Presupuesto del proyecto 2M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Life is a chemical reaction. Over 1000 individual reactions are driven in the direction of cell growth by the coupling of biosyntheses to environmentally available exergonic reactions that are harnessed by a handful of enzymes in energy metabolism. How, where, and from what the chemical reaction of life arose, and how the primordial diversification of metabolism proceeded are the topics of this proposal. Evidence for the process of metabolic origin and traces from the very early course of microbial evolution should be preserved in the chemical reactions of metabolism itself. This concept, traditionally germane to thoughts on biochemical evolution, is (almost) self evident: Enzymes do not perform feats of magic, they just accelerate reactions that tend to occur anyway. Biochemical reactions can therefore themselves harbor relics of, or be holdovers from, metabolic origin. Yet not all reactions are equally old, metabolism has evolved — but how? In this proposal, the tools of comparative physiology, thermodynamics, and comparative genomics, will be applied to investigate the process of early metabolic evolution. Three kinds of data stand central to the work: i) thermodynamic properties of reactions that comprise modern metabolic networks, ii) information contained in the ability of H2 in the presence of Ni3Fe and magnetite catalysts to substitute for ferredoxin and enzymes in biochemical reactions, and iii) information about the evolutionary origin and phylogenetic spread of heme and cytochromes as well as the ecophysiological context of cytochrome origin. The proposed work will deliver groundbreaking insights into the chemical environment at the site of biochemical origins, inform about the pre-enzymatic nature of catalysts and reductants at the origin of metabolism, and offer insights into the course of bioenergetic evolution before and after heme as well as the ancestral function of cytochromes in accessing extracellular electron acceptors.

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