A conserved and regulated mechanism drives endosomal Rab transition
Endosomes and lysosomes harbor Rab5 and Rab7 on their surface as key proteins involved in their identity, biogenesis, and fusion. Rab activation requires a guanine nucleotide exchange factor (GEF), which is Mon1-Ccz1 for Rab7. During endosome maturation,
Lars Langemeyer +8 more
doaj +1 more source
Differences in endosomal Rab gene expression between positive and negative COVID-19 patients
Objective SARS CoV-2, the etiologic agent of coronavirus disease-2019 (COVID-19) is well-known to use ACE2 to begin internalization. Some viruses enter the host cell through the endocytosis process and involve some endocytosis proteins, such as the Rab ...
Nur Atik +4 more
doaj +1 more source
Rab5 and Alsin regulate stress-activated cytoprotective signaling on mitochondria
Mitochondrial stress response is essential for cell survival, and damaged mitochondria are a hallmark of neurodegenerative diseases. Thus, it is fundamental to understand how mitochondria relay information within the cell.
FoSheng Hsu +5 more
doaj +1 more source
Rab7 associates with early endosomes to mediate sorting and transport of Semliki forest virus to late endosomes. [PDF]
Semliki forest virus (SFV) is internalized by clathrin-mediated endocytosis, and transported via early endosomes to late endosomes and lysosomes. The intracellular pathway taken by individual fluorescently labeled SFV particles was followed using ...
Andreas Vonderheit, Ari Helenius
doaj +2 more sources
Mechanism by which Rab5 promotes regeneration and functional recovery of zebrafish Mauthner axons
Rab5 is a GTPase protein that is involved in intracellular membrane trafficking. It functions by binding to various effector proteins and regulating cellular responses, including the formation of transport vesicles and their fusion with the cellular ...
Jiantao Cui +4 more
doaj +1 more source
Tropheryma whipplei, the agent of Whipple's disease, inhibits phago-lysosome biogenesis to create a suitable niche for its survival and replication in macrophages. To understand the mechanism by which it subverts phagosome maturation, we used biochemical
Giovanna Mottola +6 more
doaj +1 more source
Rab21 recruits EEA1 and competes with Rab5 for Rabex-5 activation
Rab5 is a key regulator of early endosomal traffic and fusion. It shares its localization and guanine nucleotide exchange factor Rabex-5 with the less characterized member of the Rab5 subfamily Rab21.
Francisco Yanguas, Cinzia Progida
doaj +1 more source
Enrichment of Phosphatidylethanolamine in Viral Replication Compartments via Co-opting the Endosomal Rab5 Small GTPase by a Positive-Strand RNA Virus. [PDF]
Positive-strand RNA viruses build extensive membranous replication compartments to support replication and protect the virus from antiviral responses by the host.
Kai Xu, Peter D Nagy
doaj +1 more source
Rab GTPases, which are involved in intracellular trafficking pathways, have recently been reported to be ubiquitinated. However, the functions of ubiquitinated Rab proteins remain unexplored. Here we show that Rab5 is monoubiquitinated on K116, K140, and
Donghyuk Shin +7 more
doaj +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source

