Cis Golgi Network
Cis Golgi Network - Related Videos
02:02
Cis-regulatory Sequences
0 Views •
2020
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
05:00
Monitoring the Arrival of GFP-Tagged Surface Proteins to the Trans-Golgi Network Using Functionalized Nanobodies
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2025
This video demonstrates a method to study the uptake and retrograde transport of functionalized nanobodies to understand their intracellular trafficking pathways. By introducing radiolabelled sulfate and utilizing isolation and detection techniques, this method enables the study of endocytic uptake and trans-Golgi network arrival of cargo proteins.
13:08
Quantitative Localization of a Golgi Protein by Imaging Its Center of Fluorescence Mass
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Cited by 17 •
2017
The precise localization of Golgi residents is essential for understanding the cellular functions of the Golgi. However, conventional optical microscopy is unable to resolve the sub-Golgi structure. Here we describe the protocol for a conventional microscopy based super-resolution method to quantitatively determine the sub-Golgi localization of a protein.
10:26
Imaging Neurons within Thick Brain Sections Using the Golgi-Cox Method
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Cited by 10 •
2017
We present a protocol for using the Golgi-Cox staining method in thick brain sections, in order to visualize neurons with long dendritic trees contained within single tissue samples. Two variants of this protocol are also presented that involve cresyl violet counterstaining, and the freezing of unprocessed brains for long-term storage.
08:19
Quantitative Comparison of cis-Regulatory Element (CRE) Activities in Transgenic Drosophila melanogaster
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Cited by 15 •
2011
Phenotypic variation for traits can result from mutations in cis-regulatory element (CRE) sequences that control gene expression patterns. Methods derived for use in Drosophila melanogaster can quantitatively compare the levels of spatial and temporal patterns of gene expression mediated by modified or naturally occurring CRE variants.
FAQs
Cargo entry at the cis-Golgi network is selective rather than a simple handoff. Transport vesicles from the ER fuse with this compartment, after which sorting signals help determine whether cargo proceeds into the Golgi stack or is redirected. This early decision links vesicle fusion to orderly trafficking and supports distinct routes for newly arriving cellular molecules.
Sorting signals provide routing information for molecules entering the cis-Golgi network. They help distinguish cargo that should continue into the Golgi stack from ER-resident proteins that should return to the ER through retrograde transport. This separation maintains the functional organization of the ER and Golgi while allowing newly delivered proteins and lipids to advance through the secretory pathway.
Retrograde transport returns selected ER-resident proteins from the cis-Golgi network to the ER instead of allowing them to continue through the Golgi stack. This recycling supports organelle maintenance and preserves the proper distribution of resident molecules. It also shows that early secretory-pathway traffic includes recovery as well as forward delivery.
Quality control at the cis-Golgi network contributes to the orderly handling of newly arriving proteins and lipids. By coordinating reception with sorting and recycling, the compartment helps organize which molecules enter the Golgi stack and which are returned to the ER. This coordination supports accurate processing and delivery later in the secretory pathway.
Researchers can examine intracellular trafficking, organelle maintenance, and secretion by focusing on cis-Golgi network activity. The compartment connects ER arrival, molecular sorting, Golgi entry, and recycling, making it useful for tracing how cellular proteins, membrane components, and lipids are organized as they move through the secretory pathway.
Its position at the entry side of the Golgi links ER-derived transport with subsequent processing and delivery. Studying this network helps explain how proteins, membrane components, and lipids are directed into appropriate secretory-pathway routes. That context is important for understanding how eukaryotic cells maintain organelles while distributing newly synthesized cellular materials.