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Golgi Apparatus

Golgi Apparatus

As they leave the Endoplasmic Reticulum (ER), properly folded and assembled proteins are selectively packaged into vesicles. These vesicles are transported by microtubule-based motor proteins and fuse together to form vesicular tubular clusters, subsequently arriving at the Golgi apparatus, a eukaryotic endomembrane organelle that often has a distinctive ribbon-like appearance.

Golgi Apparatus

Golgi Apparatus

Properly folded and assembled proteins are selectively packaged into vesicles that exit the ER. Motor proteins transport these vesicles to the Golgi apparatus for adding modifications that make these proteins functional at their destination.
The Golgi apparatus is a eukaryotic organelle that has a distinctive ribbon-like appearance. It is a primary sorting and dispatch station for cargo arriving from the ER. Newly arriving vesicles enter the cis face of the Golgi, closest to the ER, and are...

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Golgi matrix proteins are a group of highly dynamic proteins that maintain the stacked structure of Golgi. These proteins adapt to rapid morphological changes of the Golgi during the cell cycle. During cell division, mild proteolysis removes these connections resulting in Golgi unstacking. In The daughter cells, these proteins help reassemble the unstacked Golgi.
One of the first identified Golgi matrix proteins was GM130, a rod-like protein located in the cis-Golgi. Subsequently, many Golgi...

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Labeling Golgi with fluorescent ceramides.

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|August 3, 2012

Summary

This summary is machine-generated.

This protocol details using fluorescent ceramide probes to label the Golgi apparatus, a key organelle for cellular traffic. It introduces NBD-ceramide and a more photostable BODIPY-ceramide for improved Golgi visualization.

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Area of Science:

Cell Biology
Molecular Biology
Biochemistry

Background:

The Golgi apparatus is central to processing and trafficking proteins and lipids.
Macromolecular traffic, including secreted proteins and glycoproteins, is organized by the Golgi.
Fluorescent labeling is crucial for visualizing organelle function and dynamics.

Purpose of the Study:

To present a protocol for fluorescently labeling the Golgi apparatus.
To compare the utility of NBD-ceramide and BODIPY-ceramide probes for Golgi labeling.
To highlight the advantages of photostable probes for cellular imaging.

Main Methods:

Utilizing fluorescent ceramide probes for Golgi apparatus labeling.
Employing N-((4-(4,4-difluoro-1,3,5,7-tetramethyl-4-bora-3,5-diaza-s-indacen-2-yl)benzoyl)amino)hexanoyl-D-erythro-sphingosine (BODIPY-ceramide) for enhanced photostability.
Using 2-N-((4,4-difluoro-1,3,5,7-tetramethyl-4-bora-3,5-diaza-s-indacen-2-yl)benzoyl)amino)hexanoyl-D-erythro-sphingosine (NBD-ceramide) as a classic probe.

Main Results:

Successful labeling of the Golgi apparatus using both NBD-ceramide and BODIPY-ceramide.
BODIPY-ceramide demonstrates superior resistance to photobleaching compared to NBD-ceramide.
The protocol provides a reliable method for visualizing Golgi-mediated cellular traffic.

Conclusions:

Fluorescent ceramide probes are effective tools for studying Golgi apparatus function.
BODIPY-ceramide offers an advantage for long-term imaging due to its photostability.
This protocol facilitates research into macromolecular trafficking pathways within the cell.