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Cited by 288

The DOI matches its Crossref record; 46 of the 46 references it cites were found in a registry or an index.

The small GTP-binding protein rab4 is associated with early endosomes.

Open access
Van Der Sluijs, P, Hull, M, Zahraoui, A, Tavitian, A, Goud, B, Mellman, I·1991·Proceedings of the National Academy of Sciences

Abstract

Small GTP-binding proteins of the rab family have been implicated as playing important roles in controlling membrane traffic on the biosynthetic and endocytic pathways. We demonstrate that a distinct rab protein, rab4p, is associated with the population of early endosomes involved in transferrin-receptor recycling. An antibody to human rab4p was found to detect a doublet of approximately 24-kDa proteins on immunoblots from various cell types. Seventy-five percent of these proteins were tightly membrane bound and could be released only by detergent treatment. Upon isolation of early endosomes, late endosomes, and lysosomes, by free-flow electrophoresis and Percoll density-gradient centrifugation, most (70%) of the rab4p was found to cofractionate with early endosomes and endocytic vesicles containing 125I-labeled transferrin. The rab proteins previously localized to the endoplasmic reticulum and/or Golgi apparatus were not found in these fractions. We also localized rab4p to transferrin-receptor-containing early endosomes by immunofluorescence after expression of rab4 cDNA. The association of rab4p with early endosomes and other vesicles involved in the intracellular transport of transferrin receptor suggests that rab4p may play a role in regulating the pathway of receptor recycling.

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Metadata

Authors
Van Der Sluijs, P., Hull, M., Zahraoui, A., Tavitian, A., Goud, B., & Mellman, I.
Venue
Proceedings of the National Academy of Sciences
Published
1991-07-15
Volume
88
Issue
14
Pages
6313-6317
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2057087692
Cited by
288
References
46
FWCI
12.70
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The small GTP-binding protein rab4 is associated with early endosomes. https://app.cochat.ai/papers/10.1073/pnas.88.14.6313
The paper
Van Der Sluijs, P., Hull, M., Zahraoui, A., Tavitian, A., Goud, B., & Mellman, I. (1991). The small GTP-binding protein rab4 is associated with early endosomes. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.88.14.6313

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