منابع مشابه
Positioning the Golgi Apparatus
Ríos et al. (2004) report in this issue that the Golgi protein GMAP-210 is sufficient to confer pericentrosomal positioning and recruits gamma-tubulin and associated microtubule-nucleating ring complex proteins to Golgi membranes. The results raise the possibility that short microtubules emanate from the Golgi to mediate its organization and positioning.
متن کاملThe Golgi apparatus
At some point in their lives all cells need to grow and divide. In eukaryotic cells these processes require the delivery of new proteins and lipids from their site of synthesis in the endoplasmic reticulum (ER) to the cell surface. The Golgi apparatus, first visualised under the light microscope in 1898 by Camillo Golgi using a staining method he had developed to study neurons, lies on the rout...
متن کاملThe centrosome–Golgi apparatus nexus
A shared feature among all microtubule (MT)-dependent processes is the requirement for MTs to be organized in arrays of defined geometry. At a fundamental level, this is achieved by precisely controlling the timing and localization of the nucleation events that give rise to new MTs. To this end, MT nucleation is restricted to specific subcellular sites called MT-organizing centres. The primary ...
متن کاملTraffic through the Golgi apparatus
The role of vesicles in cargo transport through the Golgi apparatus has been controversial. Large forms of cargo such as protein aggregates are thought to progress through the Golgi stack by a process of cisternal maturation, balanced by a return flow of Golgi resident proteins in COPI-coated vesicles. However, whether this is the primary role of vesicles, or whether they also serve to transpor...
متن کاملFragmentation of the Golgi Apparatus
Phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P2) synthesis has been implicated in maintaining the function of the Golgi apparatus. Here we demonstrate that the inhibition of PtdIns(4,5)P2 synthesis in vitro in response to primary alcohol treatment and the kinetics of Golgi fragmentation in vivo were very rapid and tightly coupled. Preloading Golgi membranes with short chain phosphatidic ac...
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ژورنال
عنوان ژورنال: CYTOLOGIA
سال: 1962
ISSN: 0011-4545,1348-7019
DOI: 10.1508/cytologia.27.361