ArticleThe Journal of cell biology2026
Neuroligin-2 is ubiquitinated by Nedd4l to control developmental astrocyte morphogenesis.
Article in The Journal of cell biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Modeling NDD-Associated NLGN2 Depletion Using CRISPR/Cas13 Reveals Exaggerated Process Elongation Mediated by the CCDC88A-G Protein-ELMO Axis.International journal of molecular sciences · 2026Article
- When neuroligin-2 sticks around, astrocytes take shape.The Journal of cell biology · 2026Article
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Authors and funding
6 authors.
Funding
Abstract
Central nervous system astrocytes have an intricate, highly branched morphology. Proper development of perisynaptic astrocyte processes is necessary for tripartite synapse formation and function. However, cellular pathways orchestrating this development are largely unknown. Neuroligins (NLs) 1-3 regulate astrocyte morphogenesis via transcellular adhesions with neuronal neurexins. Here, we found an astrocytic NL2-based mechanism governing morphogenesis. Through structure and function studies, we identified a WW-binding motif within the NL2 intracellular domain required for astrocyte morphogenesis. Using cell-specific in vivo proximity labeling (iBioID), we found that each NL displays distinct protein-protein interactions within astrocytes, distinct from the neuronal NL2-binding partners. From these data, we identified a role for WW domain-containing E3 ubiquitin ligase Nedd4l in astrocyte morphogenesis. Biochemical assays revealed Nedd4l ubiquitinates and stabilizes NL2, and this ubiquitination is required for astrocyte morphogenesis. This study shows that NLs have nonoverlapping roles in controlling astrocyte growth and uncovers a molecular mechanism of how NL2 mediates astrocyte morphogenesis.
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