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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8193583PMC
http://dx.doi.org/10.1083/jcb.20200516606072021cDOI Listing

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Article Synopsis
  • Sjögren's disease is a chronic autoimmune condition primarily causing dry mouth and eyes, alongside other symptoms.
  • It involves reduced saliva production and changes in the quality of mucins, which are essential for mouth and eye hydration.
  • A protein called Giantin is mislocalized in the salivary glands of Sjögren’s patients, disrupting its interaction with enzymes that modify mucins, potentially explaining decreased mucin sulfation in these individuals.
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Golgins are a family of Golgi-localized long coiled-coil proteins. The major golgin function is thought to be the tethering of vesicles, membranes, and cytoskeletal elements to the Golgi. We previously showed that knockdown of one of the longest golgins, Giantin, altered the glycosylation patterns of cell surfaces and the kinetics of cargo transport, suggesting that Giantin maintains correct glycosylation through slowing down transport within the Golgi.

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In the original publication, one of the ARAPACIS collaborators Dr. "Leonardo Di Gennaro" name has been erroneously mentioned as "Leonardo De Gennaro".

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A role for the Golgi matrix protein giantin in ciliogenesis through control of the localization of dynein-2.

J Cell Sci

November 2013

Cell Biology Laboratories, School of Biochemistry, University of Bristol, Medical Sciences Building, University Walk, Bristol BS8 1TD, UK.

The correct formation of primary cilia is central to the development and function of nearly all cells and tissues. Cilia grow from the mother centriole by extension of a microtubule core, the axoneme, which is then surrounded with a specialized ciliary membrane that is continuous with the plasma membrane. Intraflagellar transport moves particles along the length of the axoneme to direct assembly of the cilium and is also required for proper cilia function.

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