Electron-dense granule occurring in blood platelets that stores and secretes adenosine nucleotides and serotonin. They contain a highly condensed core consisting of serotonin, histamine, calcium, magnesium, ATP, ADP, pyrophosphate and membrane lysosomal proteins. (Gene Ontology, GO_0042827)
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6 proteins localized to the platelet dense granule cellular component from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.