mast cell granule

id: GO:0042629
name: mast cell granule
namespace: cellular_component
type: go
obsolete: False

Description: Coarse, bluish-black staining cytoplasmic granules, bounded by a plasma membrane and found in mast cells and basophils. Contents include histamine, heparin, chondroitin sulfates, chymase and tryptase.

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