ArticleNature communications2025
Optineurin is an adaptor protein for ubiquitinated substrates in Golgi membrane-associated degradation.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Deubiquitination of Vangl by USP6 and USP32 Regulates Planar Cell Polarity Signaling.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Optineurin is a gatekeeper of mitochondrial health and proteostasis in Alzheimer's disease vulnerable neurons.bioRxiv : the preprint server for biology · 2026Article
- Multilayered interplay between the cGAS-STING pathway and autophagy.Autophagy reports · 2026Review
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11 authors.
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Abstract
Golgi membrane-associated degradation (GOMED) is a process that leading to the degradation of proteins that have passed through the trans-Golgi membranes upon Golgi stress. GOMED is morphologically similar to autophagy, but the substrates degraded are different, and they thus have different biological roles. Although the substrate recognition mechanism of autophagy has been clarified in detail, that of GOMED is completely unknown. Here we report that GOMED degrades its substrate proteins selectively via optineurin (OPTN), as we found that the degradation of GOMED substrates is s`uppressed by the loss of OPTN. OPTN binds to K33 polyubiquitin-tagged proteins that have passed through the Golgi, which are then incorporated into GOMED structures for eventual degradation. In vivo, GOMED is known to be involved in the removal of mitochondria from erythrocytes, and in Optn-deficient mice, mitochondria are not degraded by GOMED, resulting in the appearance of erythrocytes containing mitochondria. These findings provide insight into the substrate recognition mechanism of GOMED.
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