Structural determination and dynamics of the mitochondrial import protein (MIM)...
Structural determination and dynamics of the mitochondrial import protein (MIM) by cryo-EM and magic-angle-spinning (MAS) nuclear magnetic resonance (NMR)
Mitochondria perform numerous key functions, from energy production to metabolic pathways, and are involved in ageing and cell death. All these functions rely on about 1000 different proteins, of which 99% are synthesized outside...
Mitochondria perform numerous key functions, from energy production to metabolic pathways, and are involved in ageing and cell death. All these functions rely on about 1000 different proteins, of which 99% are synthesized outside the organelle and have to be imported and inserted into the right compartment. These import and insertion are particularly demanding for the membrane proteins as they are inherently aggregation-prone. How α-helical membrane proteins (MPs) are inserted into the mitochondrial outer membrane (MOM) is currently poorly understood. In particular, the structure of the insertase responsible for inserting tens of these α-helical MPs into this membrane, called mitochondrial import protein (MIM) in yeast, is unknown. My MitoMemInsert project addresses this important knowledge gap, by determining the atomic-resolution structure of MIM, by using cryo-EM combined with magic-angle-spinning nuclear magnetic resonance spectroscopy to resolve MIM’s structure in a lipid-bilayer environment. This will open avenues to see how the MIM complex engages with polypeptides that shall be inserted into the membrane by MIM (so-called precursor proteins or ‘preproteins’). Such a static structure determination would already be a big leap for the field: it will be the first structure of a MOM insertase of α-helical MPs. As it is thought to have a novel architecture, this structure will provide new insights into MP insertion machinery in general. In addition, I will use NMR to study the dynamics of this machinery, which I believe, will add important mechanistic knowledge of how the MIM complex engages with MPs that are being inserted in the MOM. Overall, making use of my previous technical expertise, and adding new competences to my skill set, a combination of biophysical and structural approaches will allow me to resolve this important, and hitherto poorly addressed question in mitochondrial biogenesis and, more generally, biophysics.ver más
04-11-2024:
Doctorados industria...
Se ha cerrado la línea de ayuda pública: Formación de doctores y doctoras de las universidades del Sistema universitario de Galicia (SUG) en empresas y centros de innovación y tecnología para el organismo:
04-11-2024:
PERTE-AGRO2
Se ha cerrado la línea de ayuda pública: PERTE del sector agroalimentario
02-11-2024:
Generación Fotovolt...
Se ha cerrado la línea de ayuda pública: Subvenciones destinadas al fomento de la generación fotovoltaica en espacios antropizados en Canarias, 2024
Seleccionando "Aceptar todas las cookies" acepta el uso de cookies para ayudarnos a brindarle una mejor experiencia de usuario y para analizar el uso del sitio web. Al hacer clic en "Ajustar tus preferencias" puede elegir qué cookies permitir. Solo las cookies esenciales son necesarias para el correcto funcionamiento de nuestro sitio web y no se pueden rechazar.
Cookie settings
Nuestro sitio web almacena cuatro tipos de cookies. En cualquier momento puede elegir qué cookies acepta y cuáles rechaza. Puede obtener más información sobre qué son las cookies y qué tipos de cookies almacenamos en nuestra Política de cookies.
Son necesarias por razones técnicas. Sin ellas, este sitio web podría no funcionar correctamente.
Son necesarias para una funcionalidad específica en el sitio web. Sin ellos, algunas características pueden estar deshabilitadas.
Nos permite analizar el uso del sitio web y mejorar la experiencia del visitante.
Nos permite personalizar su experiencia y enviarle contenido y ofertas relevantes, en este sitio web y en otros sitios web.