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MissingLinks

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Finding the missing links in the bacterial cell cycle

The bacterial pathogen Staphylococcus aureus is currently the second most common cause of death associated with antibiotic resistant infections. The most useful antibiotics in clinical use have multiple targets, as compounds again... ver más

31/03/2029

UNL

3M€

Presupuesto del proyecto: 3M€

Líder del proyecto

UNIVERSIDADE NOVA DE LISBOA No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2023-04-18

ERC-2022-ADG: ERC ADVANCED GRANTS Scope:Objectives

I+D

Cerrada hace 2 años

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1 Participantes

UNL

3.00M€ | Lider

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Duración del proyecto: 71 meses Fecha Inicio: 2023-04-18
Fecha Fin: 2029-03-31

Líder del proyecto

UNIVERSIDADE NOVA DE LISBOA No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 3M€

Descripción del proyecto The bacterial pathogen Staphylococcus aureus is currently the second most common cause of death associated with antibiotic resistant infections. The most useful antibiotics in clinical use have multiple targets, as compounds against single proteins rapidly succumb to the capacity of bacteria to develop resistance. To think innovatively about antibiotic discovery, we need to think not only about individual cellular processes, but also about how they are interconnected and coordinated, so that we can devise methods to strike bacterial cells, simultaneously, in multiple pathways. The bacterial cell cycle consists of a series of coordinated events required for bacterial growth, during which cells duplicate their mass and undergo chromosome replication and segregation, assembly of the division machinery, cytokinesis, and cell separation to generate two new daughter cells. Unregulated cell cycle progression may have lethal consequences for the cell and therefore bacteria have evolved various mechanisms for the precise spatiotemporal control of main cell cycle events. Some important checkpoints have been studied, particularly the link between chromosome replication/segregation and septum synthesis, to avoid DNA breaks. However, the mechanisms for coordination of other cell cycle events are still unknown. What triggers initiation of peptidoglycan synthesis, the target of beta-lactam antibiotics, after assembly of the division machinery? How does the cell coordinate synthesis of the membrane and peptidoglycan, the two major cell surface components, during cell division? What prevents premature septum splitting, which would expose an immature cell surface, devoid of virulence factors, leading to pathogen elimination by the innate immune system of an infected host? The aim of this project is to find the missing links between major cell cycle events, while also developing assays useful for antibiotic discovery.

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