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Contenido archivado el 2024-05-14

Targeting of retrograde transport vesicles in the endoplasmic reticulum

Objetivo



The secretory pathway of eukaryotic cells comprises several specialized membrane-bound compartments. Transfer of proteins between these compartments is mediated by transport vesicles. A correct targeting of these vesicles is accomplished by interactions between integral membrane proteins on the vesicles and target organelles, termed v-SNAREs and t-SNAREs, respectively. SNAREs required for anterograde transport from the endoplasmic reticulum (ER) towards the plasma membrane are already known. The discovery of a novel t-SNARE on the ER of yeast allows us to investigate for the first time the targeting of retrograde moving vesicles in the secretory pathway. Since both anterograde and retrograde v-SNAREs must be present on the same vesicles, either as targeting molecules or recycling passengers, it is possible that some of the vSNAREs involved in forward transport also have a role in retrograde traffic. The genetic and biochemical studies described in this proposal offer a unique opportunity to determine whether any of the known v-SNAREs act in this way or whether there is a separate set of retrograde vSNAREs to be discovered. Our investigations should contribute to a better understanding of how eukaryotic cells maintain their compartmental organization.

Ámbito científico (EuroSciVoc)

Programa(s)

Tema(s)

Convocatoria de propuestas

Datos no disponibles

Régimen de financiación

RGI - Research grants (individual fellowships)

Coordinador

MRC Laboratory of Molecular Biology
Aportación de la UE
Sin datos
Dirección
Hills Road
CB2 2QH Cambridge
Reino Unido
Coste total
Sin datos

Participantes (1)