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Spring 2017
ADP-ribosylation factors (Arfs) play a central role in the regulation of vesicular trafficking through the Golgi. Arfs are activated on cis-Golgi membranes exclusively by the guanine nucleotide exchange factor (GEF) Golgi-specific BFA resistance factor 1 (GBF1), upon recruitment from cytosol....
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Characterization of GBF1, Arfs and COPI at the ER-Golgi intermediate compartment and mitotic Golgi clusters
DownloadFall 2009
Protein trafficking between the endoplasmic reticulum (ER) and Golgi complex is regulated by the activity of ADP-ribosylation factors (Arfs). Arf activation by guanine nucleotide exchange factors (GEFs) leads to the recruitment of the coatomer protein COPI and vesicle formation. By using...
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Functional characterization of class I Arfs and their Guanine Nucleotide Exchange Factors at the Golgi complex
DownloadFall 2009
We examined the function of ADP-ribosylation factors (Arfs) and their guanine nucleotide exchange factors (GEFs) that regulate recruitment of coat proteins on the Golgi complex. The large ArfGEF GBF1 localizes at the cis-Golgi complex while BIG1 and BIG2 localize at the trans-Golgi network...
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Fall 2020
The Golgi complex resides at the center of the cellular trafficking pathway, where it functions in the modification, sorting, and trafficking of over one third of human proteins to their correct cellular destination. Initiation of vesicle formation at the Golgi requires activation of small...