ArticleMolecular biology of the cell2012
GBF1 bears a novel phosphatidylinositol-phosphate binding module, BP3K, to link PI3Kγ activity with Arf1 activation involved in GPCR-mediated neutrophil chemotaxis and superoxide production.
Article in Molecular biology of the cell, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed, 42 citations in OpenAlex.
- Site-specific phosphorylations of the Arf activator GBF1 differentially regulate GBF1 function in Golgi homeostasis and secretion versus cytokinesis.Scientific reports · 2023Article
- The Arf-GEF GBF1 undergoes multi-domain structural shifts to activate Arf at the Golgi.Frontiers in cell and developmental biology · 2023Article
- Centriole and Golgi microtubule nucleation are dispensable for the migration of human neutrophil-like cells.Molecular biology of the cell · 2021Article
- Unconventional p97/VCP-Mediated Endoplasmic Reticulum-to-Endosome Trafficking of a Retroviral Protein.Journal of virology · 2021Article
- Monitoring Phosphoinositide Fluxes and Effectors During Leukocyte Chemotaxis and Phagocytosis.Frontiers in cell and developmental biology · 2021Review
- Assessment of Arf6 Deletion in PLB-985 Differentiated in Neutrophil-Like Cells and in Mouse Neutrophils: Impact on Adhesion and Migration.Mediators of inflammation · 2020Article
- Spoiled for Choice: Diverse Endocytic Pathways Function at the Cell Surface.Annual review of cell and developmental biology · 2019Review
- A GBF1-Dependent Mechanism for Environmentally Responsive Regulation of ER-Golgi Transport.Developmental cell · 2019Article
- ARF GTPases and their GEFs and GAPs: concepts and challenges.Molecular biology of the cell · 2019Review
- Synthesis of a 6-Aza-Isoindolinone-Based Inhibitor of Phosphoinositide 3-Kinase γ via Ruthenium-Catalyzed [2 + 2 + 2] Cyclotrimerization.ACS medicinal chemistry letters · 2019Article
- A New Look at the Functional Organization of the Golgi Ribbon.Frontiers in cell and developmental biology · 2019Article
- Comparison of village dog and wolf genomes highlights the role of the neural crest in dog domestication.BMC biology · 2018Article
- Highly conserved motifs within the large Sec7 ARF guanine nucleotide exchange factor GBF1 target it to the Golgi and are critical for GBF1 activity.American journal of physiology. Cell physiology · 2018Article
- The ARF guanine nucleotide exchange factor GBF1 is targeted to Golgi membranes through a PIP-binding domain.Journal of cell science · 2018Article
- Article
- ARF1 recruits RAC1 to leading edge in neutrophil chemotaxis.Cell communication and signaling : CCS · 2017Article
- The Arf activator GBF1 localizes to plasma membrane sites involved in cell adhesion and motility.Cellular logistics · 2017Article
- Endocytosis of Wingless via a dynamin-independent pathway is necessary for signaling inProceedings of the National Academy of Sciences of the United States of America · 2016Article
- Article
- Exome Sequencing Analysis in Severe, Early-Onset Chronic Obstructive Pulmonary Disease.American journal of respiratory and critical care medicine · 2016Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Most chemoattractants for neutrophils bind to the Gα(i) family of heterotrimeric G protein-coupled receptors (GPCRs) and release Gβγ subunits to activate chemotaxis and superoxide production. GIT2, a GTPase-activating protein for Arf1, forms a complex with Gβγ and is integral for directional sensing and suppression of superoxide production. Here we show that GBF1, a guanine nucleotide exchanging factor for Arf-GTPases, is primarily responsible for Arf1 activation upon GPCR stimulation and is important for neutrophil chemotaxis and superoxide production. We find that GBF1 bears a novel module, namely binding to products of phosphatidyl inositol 3-kinase (PI3K), which binds to products of PI3Kγ. Through this binding, GBF1 is translocated from the Golgi to the leading edge upon GPCR stimulation to activate Arf1 and recruit p22phox and GIT2 to the leading edge. Moreover, GBF1-mediated Arf1 activation is necessary to unify cell polarity during chemotaxis. Our results identify a novel mechanism that links PI3Kγ activity with chemotaxis and superoxide production in GPCR signaling.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.