Navin Gopaldass, Kai-En Chen, Brett Collins, Andreas Mayer
{"title":"Assembly and fission of tubular carriers mediating protein sorting in endosomes","authors":"Navin Gopaldass, Kai-En Chen, Brett Collins, Andreas Mayer","doi":"10.1038/s41580-024-00746-8","DOIUrl":null,"url":null,"abstract":"Endosomes are central protein-sorting stations at the crossroads of numerous membrane trafficking pathways in all eukaryotes. They have a key role in protein homeostasis and cellular signalling and are involved in the pathogenesis of numerous diseases. Endosome-associated protein assemblies or coats collect transmembrane cargo proteins and concentrate them into retrieval domains. These domains can extend into tubular carriers, which then pinch off from the endosomal membrane and deliver the cargoes to appropriate subcellular compartments. Here we discuss novel insights into the structure of a number of tubular membrane coats that mediate the recruitment of cargoes into these carriers, focusing on sorting nexin-based coats such as Retromer, Commander and ESCPE-1. We summarize current and emerging views of how selective tubular endosomal carriers form and detach from endosomes by fission, highlighting structural aspects, conceptual challenges and open questions. Endosomes function as sorting stations that segregate cargo proteins into endosomal carriers, enabling their distribution to subcellular target compartments. Increasingly detailed structural insights have revealed how proteins, such as sorting nexins, assemble on endosomal membranes to form a coat that facilitates the formation and detachment of tubular carriers.","PeriodicalId":19051,"journal":{"name":"Nature Reviews Molecular Cell Biology","volume":null,"pages":null},"PeriodicalIF":81.3000,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Reviews Molecular Cell Biology","FirstCategoryId":"99","ListUrlMain":"https://www.nature.com/articles/s41580-024-00746-8","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CELL BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Endosomes are central protein-sorting stations at the crossroads of numerous membrane trafficking pathways in all eukaryotes. They have a key role in protein homeostasis and cellular signalling and are involved in the pathogenesis of numerous diseases. Endosome-associated protein assemblies or coats collect transmembrane cargo proteins and concentrate them into retrieval domains. These domains can extend into tubular carriers, which then pinch off from the endosomal membrane and deliver the cargoes to appropriate subcellular compartments. Here we discuss novel insights into the structure of a number of tubular membrane coats that mediate the recruitment of cargoes into these carriers, focusing on sorting nexin-based coats such as Retromer, Commander and ESCPE-1. We summarize current and emerging views of how selective tubular endosomal carriers form and detach from endosomes by fission, highlighting structural aspects, conceptual challenges and open questions. Endosomes function as sorting stations that segregate cargo proteins into endosomal carriers, enabling their distribution to subcellular target compartments. Increasingly detailed structural insights have revealed how proteins, such as sorting nexins, assemble on endosomal membranes to form a coat that facilitates the formation and detachment of tubular carriers.
期刊介绍:
Nature Reviews Molecular Cell Biology is a prestigious journal that aims to be the primary source of reviews and commentaries for the scientific communities it serves. The journal strives to publish articles that are authoritative, accessible, and enriched with easily understandable figures, tables, and other display items. The goal is to provide an unparalleled service to authors, referees, and readers, and the journal works diligently to maximize the usefulness and impact of each article. Nature Reviews Molecular Cell Biology publishes a variety of article types, including Reviews, Perspectives, Comments, and Research Highlights, all of which are relevant to molecular and cell biologists. The journal's broad scope ensures that the articles it publishes reach the widest possible audience.