JCB logo
Keystone Symposia
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents

Published online 17 December 2001. doi:10.1083/jcb.200108029
This Article
Right arrow Full Text
Right arrow PDF (Full Text)
Right arrow Alert me when this article is cited
Right arrow Citation Map
Services
Right arrow Email this article
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new content in the JCB
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Martínez-Menárguez, J. A.
Right arrow Articles by Klumperman, J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Martínez-Menárguez, J. A.
Right arrow Articles by Klumperman, J.
Social Bookmarking
 Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?
© The Rockefeller University Press, 0021-9525/2001/12/1213 $5.00
The Journal of Cell Biology, Volume 155, Number 7, December 24, 2001 1213-1224


Article

Peri-Golgi vesicles contain retrograde but not anterograde proteins consistent with the cisternal progression model of intra-Golgi transport

José A. Martínez-Menárguez1, Rytis Prekeris2, Viola M.J. Oorschot3, Richard Scheller2, Jan W. Slot3, Hans J. Geuze3 and Judith Klumperman3

1 Department of Cell Biology, School of Medicine, University of Murcia, 30071 Murcia, Spain
2 Department of Molecular and Cellular Physiology, Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA
3 Department of Cell Biology, University Medical Center Utrecht, Institute of Biomembranes and Centre for Biomedical Genetics, 3584 CX Utrecht, Netherlands

Address correspondence to Judith Klumperman, Dept. of Cell Biology, University Medical Center Utrecht, Heidelberglaan 100, AZU Rm. G02.525, 3584 CX Utrecht, Netherlands. Tel.: 31-30-2506550. Fax: 31-30-2541797. E-mail: j.klumperman{at}lab.azu.nl

A cisternal progression mode of intra-Golgi transport requires that Golgi resident proteins recycle by peri-Golgi vesicles, whereas the alternative model of vesicular transport predicts anterograde cargo proteins to be present in such vesicles. We have used quantitative immuno-EM on NRK cells to distinguish peri-Golgi vesicles from other vesicles in the Golgi region. We found significant levels of the Golgi resident enzyme mannosidase II and the transport machinery proteins giantin, KDEL-receptor, and rBet1 in coatomer protein I–coated cisternal rims and peri-Golgi vesicles. By contrast, when cells expressed vesicular stomatitis virus protein G this anterograde marker was largely absent from the peri-Golgi vesicles. These data suggest a role of peri-Golgi vesicles in recycling of Golgi residents, rather than an important role in anterograde transport.

Key Words: mannosidase II; COP coats; giantin; KDELr; Golgi complex


Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?


This article has been cited by other articles:



  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents