AP-1A Controls Secretory Granule Biogenesis and Trafficking of Membrane Secretory Granule Proteins
نویسندگان
چکیده
منابع مشابه
Dense-core secretory granule biogenesis.
The dense-core secretory granule is a key organelle for secretion of hormones and neuropeptides in endocrine cells and neurons, in response to stimulation. Cholesterol and granins are critical for the assembly of these organelles at the trans-Golgi network, and their biogenesis is regulated quantitatively by posttranscriptional and posttranslational mechanisms.
متن کاملDifferential trafficking of soluble and integral membrane secretory granule-associated proteins
The posttranslational processing enzyme peptidylglycine alpha-amidating monooxygenase (PAM) occurs naturally in integral membrane and soluble forms. With the goal of understanding the targeting of these proteins to secretory granules, we have compared the maturation, processing, secretion, and storage of PAM proteins in stably transfected AtT-20 cells. Integral membrane and soluble PAM proteins...
متن کاملAP-1 and clathrin are essential for secretory granule biogenesis in Drosophila
Regulated secretion of hormones, digestive enzymes, and other biologically active molecules requires the formation of secretory granules. Clathrin and the clathrin adaptor protein complex 1 (AP-1) are necessary for maturation of exocrine, endocrine, and neuroendocrine secretory granules. However, the initial steps of secretory granule biogenesis are only minimally understood. Powerful genetic a...
متن کاملSecretory granule exocytosis.
Regulated exocytosis of secretory granules or dense-core granules has been examined in many well-characterized cell types including neurons, neuroendocrine, endocrine, exocrine, and hemopoietic cells and also in other less well-studied cell types. Secretory granule exocytosis occurs through mechanisms with many aspects in common with synaptic vesicle exocytosis and most likely uses the same bas...
متن کاملCharacterization of the immature secretory granule, an intermediate in granule biogenesis
The events in the biogenesis of secretory granules after the budding of a dense-cored vesicle from the trans-Golgi network (TGN) were investigated in the neuroendocrine cell line PC12, using sulfate-labeled secretogranin II as a marker. The TGN-derived dense-cored vesicles, which we refer to as immature secretory granules, were found to be obligatory organellar intermediates in the biogenesis o...
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ژورنال
عنوان ژورنال: Traffic
سال: 2014
ISSN: 1398-9219
DOI: 10.1111/tra.12194