Exploring liquid-liquid phase separation in the organisation of Golgi matrix proteins

Autor(es)

Mendes, Luis Felipe S. ; Oliveira, Carolina G. ; Simoes, Kevin F. ; Kava, Emanuel ; Costa-Filho, Antonio J.

• Tipo de documento: Artigo Científico
• Fonte: BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS; v. 1872, n. 5, p. 10-pg., 2024-06-27.

Resumo

The Golgi apparatus is a critical organelle in protein sorting and lipid metabolism. Characterized by its stacked, flattened cisternal structure, the Golgi exhibits distinct polarity with its cis- and trans-faces orchestrating various protein maturation and transport processes. At the heart of its structural integrity and organisation are the Golgi Matrix Proteins (GMPs), predominantly comprising Golgins and GRASPs. These proteins contribute to this organelle 's unique stacked and polarized structure and ensure the precise localization of Golgi-resident enzymes, which is crucial for accurate protein processing. Despite over a century of research since its discovery, the Golgi architecture 's intricate mechanisms still need to be fully understood. Here, we discuss that GMPs across different Eukaryotic lineages present a significant tendency to form biomolecular condensates. Moreover, we validated experimentally that members of the GRASP family also exhibit a strong tendency. Our findings offer a new perspective on the possible roles of protein disorder and condensation of GMPs in the Golgi organisation. (AU)

• Processo FAPESP: 22/06006-0 - Elucidando o impacto de condensados líquidos e sólidos funcionais de proteínas na via de secreção
• Beneficiário: Luis Felipe Santos Mendes
• Modalidade de apoio: Auxílio à Pesquisa - Projeto Geração
• Processo FAPESP: 21/10465-7 - Explorando a dinâmica de agregação/desagregação de uma proteína da matriz de Golgi sob condições de estresse
• Beneficiário: Luis Felipe Santos Mendes
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado