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Cited by 278

The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.

Convergence of Non-clathrin- and Clathrin-derived Endosomes Involves Arf6 Inactivation and Changes in Phosphoinositides

Open access
Naslavsky, Naava, Weigert, Roberto, Donaldson, Julie G.·2003·Molecular Biology of the Cell

Abstract

The trafficking of two plasma membrane (PM) proteins that lack clathrin internalization sequences, major histocompatibility complex class I (MHCI), and interleukin 2 receptor α subunit (Tac) was compared with that of PM proteins internalized via clathrin. MHCI and Tac were internalized into endosomes that were distinct from those containing clathrin cargo. At later times, a fraction of these internalized membranes were observed in Arf6-associated, tubular recycling endosomes whereas another fraction acquired early endosomal autoantigen 1 (EEA1) before fusion with the “classical” early endosomes containing the clathrin-dependent cargo, LDL. After convergence, cargo molecules from both pathways eventually arrived, in a Rab7-dependent manner, at late endosomes and were degraded. Expression of a constitutively active mutant of Arf6, Q67L, caused MHCI and Tac to accumulate in enlarged PIP 2-enriched vacuoles, devoid of EEA1 and inhibited their fusion with clathrin cargo-containing endosomes and hence blocked degradation. By contrast, trafficking and degradation of clathrin-cargo was not affected. A similar block in transport of MHCI and Tac was reversibly induced by a PI3-kinase inhibitor, implying that inactivation of Arf6 and acquisition of PI3P are required for convergence of endosomes arising from these two pathways.

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Metadata

Authors
Naslavsky, N., Weigert, R., & Donaldson, J. G.
Venue
Molecular Biology of the Cell
Published
2003-02
Volume
14
Issue
2
Pages
417-431
ISSN
  • 1059-1524 (ISSN-L)
  • 1939-4586
OpenAlex
W1996453362
Cited by
278
References
39
FWCI
7.15
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Convergence of Non-clathrin- and Clathrin-derived Endosomes Involves Arf6 Inactivation and Changes in Phosphoinositides. https://app.cochat.ai/papers/10.1091/mbc.02-04-0053
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Naslavsky, N., Weigert, R., & Donaldson, J. G. (2003). Convergence of Non-clathrin- and Clathrin-derived Endosomes Involves Arf6 Inactivation and Changes in Phosphoinositides. Molecular Biology of the Cell. https://doi.org/10.1091/mbc.02-04-0053

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