ArticleThe Journal of cell biology2006
Synaptotagmin IV is necessary for the maturation of secretory granules in PC12 cells.
Article in The Journal of cell biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
43 citing papers in PubMed, 72 citations in OpenAlex.
- Brain-Derived Neurotrophic Factor Trafficking via the Regulated Secretory Pathway: Mechanisms and Disease Implications.Molecular neurobiology · 2025Review
- Neuronal Scaffold Protein ARMS Interacts with Synaptotagmin-4 C2AB through the Ankyrin Repeat Domain with an Unexpected Mode.International journal of molecular sciences · 2023Article
- Cell-specific secretory granule sorting mechanisms: the role of MAGEL2 and retromer in hypothalamic regulated secretion.Frontiers in cell and developmental biology · 2023Review
- Identification of the functional domain of the dense core vesicle biogenesis factor HID-1.PloS one · 2023Article
- A novel function for Rab1 and Rab11 during secretory granule maturation.Journal of cell science · 2021Article
- Pancreatic β-Cell-Specific Deletion of VPS41 Causes Diabetes Due to Defects in Insulin Secretion.Diabetes · 2021Article
- Tetanus insensitive VAMP2 differentially restores synaptic and dense core vesicle fusion in tetanus neurotoxin treated neurons.Scientific reports · 2020Article
- A Member of the Ferlin Calcium Sensor Family Is Essential for Toxoplasma gondii Rhoptry Secretion.mBio · 2018Article
- Control of insulin granule formation and function by the ABC transporters ABCG1 and ABCA1 and by oxysterol binding protein OSBP.Molecular biology of the cell · 2018Article
- Extended Synaptotagmin 1 Interacts with Herpes Simplex Virus 1 Glycoprotein M and Negatively Modulates Virus-Induced Membrane Fusion.Journal of virology · 2018Article
- The dense-core vesicle maturation protein CCCP-1 binds RAB-2 and membranes through its C-terminal domain.Traffic (Copenhagen, Denmark) · 2017Article
- Src promotes castration-recurrent prostate cancer through androgen receptor-dependent canonical and non-canonical transcriptional signatures.Oncotarget · 2017Article
- HID-1 is required for homotypic fusion of immature secretory granules during maturation.eLife · 2016Article
- The EARP Complex and Its Interactor EIPR-1 Are Required for Cargo Sorting to Dense-Core Vesicles.PLoS genetics · 2016Article
- An efficient two-step subcellular fractionation method for the enrichment of insulin granules from INS-1 cells.Biophysics reports · 2015Article
- An aspartyl cathepsin, CTH3, is essential for proprotein processing during secretory granule maturation in Tetrahymena thermophila.Molecular biology of the cell · 2014Article
- The SNARE protein vti1a functions in dense-core vesicle biogenesis.The EMBO journal · 2014Article
- A histidine-rich linker region in peptidylglycine α-amidating monooxygenase has the properties of a pH sensor.The Journal of biological chemistry · 2014Article
- Article
- The functional significance of synaptotagmin diversity in neuroendocrine secretion.Frontiers in endocrinology · 2013Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In neuroendocrine PC12 cells, immature secretory granules (ISGs) mature through homotypic fusion and membrane remodeling. We present evidence that the ISG-localized synaptotagmin IV (Syt IV) is involved in ISG maturation. Using an in vitro homotypic fusion assay, we show that the cytoplasmic domain (CD) of Syt IV, but not of Syt I, VII, or IX, inhibits ISG homotypic fusion. Moreover, Syt IV CD binds specifically to ISGs and not to mature secretory granules (MSGs), and Syt IV binds to syntaxin 6, a SNARE protein that is involved in ISG maturation. ISG homotypic fusion was inhibited in vivo by small interfering RNA-mediated depletion of Syt IV. Furthermore, the Syt IV CD, as well as Syt IV depletion, reduces secretogranin II (SgII) processing by prohormone convertase 2 (PC2). PC2 is found mostly in the proform, suggesting that activation of PC2 is also inhibited. Granule formation, and the sorting of SgII and PC2 from the trans-Golgi network into ISGs and MSGs, however, is not affected. We conclude that Syt IV is an essential component for secretory granule maturation.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.