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LoopingDNA

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Bottom up biophysics approach to resolve the looping structure of chromosomes

How is DNA spatially organized in our cells? What are the mechanisms that shape chromosomes and how does their 3D architecture direct their function? Recent years have shown that the spatial structure of the genome is of pivotal i... ver más

30/06/2025

TU Delft

3M€

Presupuesto del proyecto: 3M€

Líder del proyecto

TECHNISCHE UNIVERSITEIT DELFT No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

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Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2020-05-12

ERC-2019-ADG: ERC Advanced Grant

I+D

Cerrada hace 5 años

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Información adicional privada

No hay información privada compartida para este proyecto. Habla con el coordinador.

2 Participantes

TU Delft

2.50M€ | Lider

FLUBETECH

350.00K€ | Participante

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Duración del proyecto: 61 meses Fecha Inicio: 2020-05-12
Fecha Fin: 2025-06-30

Líder del proyecto

TECHNISCHE UNIVERSITEIT DELFT No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 3M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto How is DNA spatially organized in our cells? What are the mechanisms that shape chromosomes and how does their 3D architecture direct their function? Recent years have shown that the spatial structure of the genome is of pivotal importance for its biological function. Yet, the basic physics of the formation and regulation of its 3D structure has remained unclear. This proposal aims to understand the fundamental structure of chromosomes using a bottom up biophysics approach, from looping at the single-molecule level to higher levels of complexity. We focus on so-called SMC protein complexes (SMC = Structural Maintenance of Chromosomes). These ring-shaped proteins are a unique new type of molecular motors that can extrude large loops of DNA that are thought to be the basis of chromosome structure. Our group’s recent breakthrough discovery of the looping motor function of condensin SMC paved the way to now answer major open questions, such as the motor mechanism of SMCs; how SMCs handle realistic chromosomal fibers loaded with DNA-binding proteins; how looping relates to gene expression; and whether it is evolutionary conserved from bacteria to man. By answering these questions using single-molecule assays, we will resolve the basic mechanics of the SMC-induced looping of DNA. We will extend this to even build a chromosome from the bottom up, in a ‘genome-in-a-box’ approach where we will take genome-length bare DNA and add SMC protein complexes and other DNA-processing proteins. Such a well-controlled bottom-up approach – which to our knowledge is unique – can be expected to generate a radically new understanding of the physical forces and protein systems that shape chromosomes. We are confident that our powerful single-molecule biophysics tools, in collaboration with working with the world’s best biochemists, will enable to disentangle the fundamental looping architecture of chromosomes that is so essential to all of life.

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