Cited by 174Cellular transport and secretionUbiquitin and proteasome pathwaysAutophagy in Disease and Therapy

Structural Basis for Endosomal Targeting by the Bro1 Domain

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Kim, Jaewon, Sitaraman, Sujatha, Hierro, Aitor, Beach, Bridgette M., Odorizzi, Greg, Hurley, James H.·2005·Developmental Cell

Abstract

Proteins delivered to the lysosome or the yeast vacuole via late endosomes are sorted by the ESCRT complexes and by associated proteins, including Alix and its yeast homolog Bro1. Alix, Bro1, and several other late endosomal proteins share a conserved 160 residue Bro1 domain whose boundaries, structure, and function have not been characterized. The crystal structure of the Bro1 domain of Bro1 reveals a folded core of 367 residues. The extended Bro1 domain is necessary and sufficient for binding to the ESCRT-III subunit Snf7 and for the recruitment of Bro1 to late endosomes. The structure resembles a boomerang with its concave face filled in and contains a triple tetratricopeptide repeat domain as a substructure. Snf7 binds to a conserved hydrophobic patch on Bro1 that is required for protein complex formation and for the protein-sorting function of Bro1. These results define a conserved mechanism whereby Bro1 domain-containing proteins are targeted to endosomes by Snf7 and its orthologs.

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Crossref · 10.1016/j.devcel.2005.04.001

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  • Redundant and parallel ESCRT-III recruiting axes are mandated.

    “This mandates the presence of redundant and parallel ESCRT-III recruiting axes perhaps fulfilled by the intermediary ESCRT-II complex [13,17,18] or additional ALIX homologs and orthologs [19,20,21].”

    From Budding of a Retrovirus: Some Assemblies Required (2020) · cites this paper as [19]

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Authors
Kim, J., Sitaraman, S., Hierro, A., Beach, B. M., Odorizzi, G., & Hurley, J. H.
Affiliations
  • National Institutes of Health (US)
  • University of Colorado Boulder (US)
Corresponding author
Hurley, James H.
Venue
Developmental Cell
Publisher
Elsevier BV
Published
2005-06
Volume
8
Issue
6
Pages
937-947
ISSN
1534-5807 (ISSN-L)
OpenAlex
W2033191472
Cited by
174
References
70
Citations by year
2026: 3 · 2025: 2 · 2024: 2 · 2023: 2 · 2022: 4 · 2021: 8 · 2020: 8 · 2019: 4 · 2018: 6 · 2017: 3 · 2016: 9 · 2015: 6 · 2014: 8 · 2013: 11 · 2012: 12
FWCI
7.07
Type
journal article
Language
en
Open access
Locations
  • Developmental Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of General Medical Sciences (R01GM065505, GM065505)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
Keywords
Bro1 domain, Snf7, ESCRT-III, lysosomal targeting, Alix, tetratricopeptide repeats, protein sorting, crystal structure, hydrophobic patch, yeast vacuole
MeSH terms
Animals, Cytoplasm, Fluorescent Antibody Technique, Fungal Proteins, Models, Molecular, Molecular Sequence Data, Protein Binding, Endosomes, Gene Expression Regulation, Fungal, Mutagenesis, Protein Structure, Tertiary, Crystallography, X-Ray, Protein Transport, Protein Interaction Mapping, Saccharomyces cerevisiae Proteins, Vesicular Transport Proteins, Structural Homology, Protein, Green Fluorescent Proteins, Endosomal Sorting Complexes Required for Transport, In Vitro Techniques

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