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Genome-wide CRISPR screening identifies new regulators of glycoprotein secretion

ABSTRACT: Genome-wide CRISPR screening identifies new regulators of glycoprotein secretion

PROVIDER: PRJNA552266 | ENA |

REPOSITORIES: ENA

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Genome-wide CRISPR screening identifies new regulators of glycoprotein secretion

Project description:Background: The fundamental process of protein secretion from eukaryotic cells has been well described for many years, yet gaps in our understanding of how this process is regulated remain. Methods: With the aim of identifying novel genes involved in the secretion of glycoproteins, we used a screening pipeline consisting of a pooled genome-wide CRISPR screen, followed by secondary siRNA screening of the hits to identify and validate several novel regulators of protein secretion. Results: We present approximately 50 novel genes not previously associated with protein secretion, many of which also had an effect on the structure of the Golgi apparatus. We further studied a small selection of hits to investigate their subcellular localization. One of these, GPR161, is a novel Golgi-resident protein that we propose maintains Golgi structure via an interaction with golgin A5. Conclusions: This study has identified new factors for protein secretion involved in Golgi homeostasis.

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