Results 61 to 70 of about 12,764 (213)

Orchestrating the metastatic symphony: the role of extracellular vesicles in the epithelial–mesenchymal transition and pulmonary niche formation of breast cancer

open access: yesBiological Reviews, EarlyView.
ABSTRACT The complexity of breast cancer (BC) lung metastasis lies in the capacity of tumour cells to interact efficiently with distant organs to promote colonisation, a process that involves the sophisticated coordination of inherent cellular plasticity and the remodelling of the distant microenvironment.
Jian Lu   +12 more
wiley   +1 more source

ARF1-mediated actin polymerization produces movement of artificial vesicles [PDF]

open access: yesProceedings of the National Academy of Sciences, 2007
Vesicular trafficking and actin dynamics on Golgi membranes are both regulated by ADP-ribosylation factor 1 (ARF1) through the recruitment of various effectors, including vesicular coats. Actin assembly on Golgi membranes contributes to the architecture of the Golgi complex, vesicle formation, and trafficking and is mediated by ARF1 through a cascade ...
Julien, Heuvingh   +3 more
openaire   +2 more sources

The small GTPase ARF6 regulates GABAergic synapse development

open access: yesMolecular Brain, 2020
ADP ribosylation factors (ARFs) are a family of small GTPases composed of six members (ARF1–6) that control various cellular functions, including membrane trafficking and actin cytoskeletal rearrangement, in eukaryotic cells.
Hyeonho Kim   +5 more
doaj   +1 more source

The Small GTPase Arf6 Functions as a Membrane Tether in a Chemically-Defined Reconstitution System

open access: yesFrontiers in Cell and Developmental Biology, 2021
Arf-family small GTPases are essential protein components for membrane trafficking in all eukaryotic endomembrane systems, particularly during the formation of membrane-bound, coat protein complex-coated transport carriers.
Kana Fujibayashi, Joji Mima
doaj   +1 more source

Fine tuning Exo2, a small molecule inhibitor of secretion and retrograde trafficking pathways in mammalian cells [PDF]

open access: yes, 2010
The small molecule 4-hydroxy-3-methoxybenzaldehyde (5,6,7,8-tetrahydro[1]benzothieno[2,3- d]pyrimidin-4-yl)hydrazone (Exo2) stimulates morphological changes at the mammalian Golgi and trans-Golgi network that are virtually indistinguishable from those ...
Barr   +67 more
core   +1 more source

Ion Activation Methods for Top‐Down Proteomics

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Mass spectrometry (MS) has emerged as a premier method used to characterize the sequences of proteins. Top‐down proteomics aims to capture the multiple sources of structural diversity reflected in proteins, such as those that arise from alternative RNA splicing events or the addition of post‐translational modifications. Tandem MS (i.e., MS/MS)
Jada N. Walker, Jennifer S. Brodbelt
wiley   +1 more source

Histone deacetylase inhibitors suppress aggressiveness of head and neck squamous cell carcinoma via histone acetylation-independent blockade of the EGFR-Arf1 axis

open access: yesJournal of Experimental & Clinical Cancer Research, 2019
Background A promising arsenal of histone deacetylase (HDAC)-targeted treatment has emerged in the past decade, as the abnormal targeting or retention of HDACs to DNA regulatory regions often occurs in many cancers. Head and neck squamous cell carcinoma (
Leilei He   +5 more
doaj   +1 more source

Structures of Ras superfamily effector complexes: What have we learnt in two decades? [PDF]

open access: yes, 2015
The Ras superfamily small G proteins are master regulators of a diverse range of cellular processes and act via downstream effector molecules. The first structure of a small G protein-effector complex, that of Rap1A with c-Raf1, was published 20 years ...
Mott, Helen R, Owen, Darerca
core   +1 more source

Coronavirus Nsp3 Hijacks CLTC to Modulate Autophagosome Nucleation for Promoting DMV Formation and Viral Replication

open access: yesAdvanced Science, Volume 13, Issue 24, 27 April 2026.
In wild‐type cells, FIPV infection recruits CLTC to nsp3, facilitates DMV biogenesis and block autophagic flux to promote viral replication. CLTC knockout impairs autophagosome nucleation by reducing Beclin1–ATG14 complex expression. This disrupts the formation of autophagic precursor membranes, thereby preventing their hijacking by nsp3 for DMV ...
Juan Xu   +9 more
wiley   +1 more source

Mutational Analysis of the Arf1•GTP/Arf GAP Interface Reveals an Arf1 Mutant that Selectively Affects the Arf GAP ASAP1 [PDF]

open access: yesCurrent Biology, 2005
Arf1 is a GTP binding protein that functions at a number of cellular sites to control membrane traffic and actin remodeling. Arf1 is regulated by site-specific GTPase-activating proteins (GAPs). The combined results of crystallographic and biochemical studies have led to the proposal that Arf1 GAPs differ in the specific interface formed with Arf1.
Luo, Ruibai   +5 more
openaire   +2 more sources

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