ArticleNature communications2021
Proximity proteomics identifies PAK4 as a component of Afadin-Nectin junctions.
Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 15 citations in OpenAlex.
- A screen for adherens junction proteins regulating collective cell migration and testis morphogenesis reveals important roles for the Rab GAP RN-tre and the kinase Par-1.Molecular biology of the cell · 2026Article
- A screen for adherens junction proteins regulating collective cell migration and testis morphogenesis reveals important roles for the Rab GAP RN-tre and the kinase Par-1.bioRxiv : the preprint server for biology · 2026Article
- PAK4 promotes vertex remodeling to maintain epithelial integrity and barrier function.bioRxiv : the preprint server for biology · 2025Article
- Mushroom bodies tiny regulates Sidekick localization to tricellular adherens junctions.Development (Cambridge, England) · 2025Article
- α-catenin phosphorylation is actomyosin-sensitive and required for epithelial barrier functions through Afadin.bioRxiv : the preprint server for biology · 2025Article
- α-Catenin force-sensitive binding and sequestration of LZTS2 leads to cytokinesis failure.The Journal of cell biology · 2025Article
- Proximity proteomics provides a new resource for exploring the function of Afadin and the complexity of cell-cell adherens junctions.Biology open · 2025Article
- Proximity proteomics provides a new resource for exploring the function of Afadin and the complexity of cell-cell adherens junctions.bioRxiv : the preprint server for biology · 2024Article
- The Dilute domain in Canoe is not essential for linking cell junctions to the cytoskeleton but supports morphogenesis robustness.Journal of cell science · 2024Article
- α-catenin mechanosensitivity as a route to cytokinesis failure through sequestration of LZTS2.bioRxiv : the preprint server for biology · 2023Article
- Remodeling of the tumor microenvironment through PAK4 inhibition sensitizes tumors to immune checkpoint blockade.Cancer research communications · 2022Article
- Inka2, a novel Pak4 inhibitor, regulates actin dynamics in neuronal development.PLoS genetics · 2022Article
- Powering morphogenesis: multiscale challenges at the interface of cell adhesion and the cytoskeleton.Molecular biology of the cell · 2022Review
- Microscopic Visualization of Cell-Cell Adhesion Complexes at Micro and Nanoscale.Frontiers in cell and developmental biology · 2022Review
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Human PAK4 is an ubiquitously expressed p21-activated kinase which acts downstream of Cdc42. Since PAK4 is enriched in cell-cell junctions, we probed the local protein environment around the kinase with a view to understanding its location and substrates. We report that U2OS cells expressing PAK4-BirA-GFP identify a subset of 27 PAK4-proximal proteins that are primarily cell-cell junction components. Afadin/AF6 showed the highest relative biotin labelling and links to the nectin family of homophilic junctional proteins. Reciprocally >50% of the PAK4-proximal proteins were identified by Afadin BioID. Co-precipitation experiments failed to identify junctional proteins, emphasizing the advantage of the BioID method. Mechanistically PAK4 depended on Afadin for its junctional localization, which is similar to the situation in Drosophila. A highly ranked PAK4-proximal protein LZTS2 was immuno-localized with Afadin at cell-cell junctions. Though PAK4 and Cdc42 are junctional, BioID analysis did not yield conventional cadherins, indicating their spatial segregation. To identify cellular PAK4 substrates we then assessed rapid changes (12') in phospho-proteome after treatment with two PAK inhibitors. Among the PAK4-proximal junctional proteins seventeen PAK4 sites were identified. We anticipate mammalian group II PAKs are selective for the Afadin/nectin sub-compartment, with a demonstrably distinct localization from tight and cadherin junctions.
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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.