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| Term | platelet alpha granule | ID (Ontology) | GO:0031091 (Gene Ontology) |
| Definition | A secretory organelle found in blood platelets, which is unique in that it exhibits further compartmentalization and acquires its protein content via two distinct mechanisms: (1) biosynthesis predominantly at the megakaryocyte (MK) level (with some vestigial platelet synthesis) (e.g. platelet factor 4) and (2) endocytosis and pinocytosis at both the MK and circulating platelet levels (e.g. fibrinogen (Fg) and IgG).[ PubMed:8467233 ] | ||
| Also Known As | "platelet alpha-granule" | ||
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secretory vesicle |__secretory granule |__platelet alpha granule |
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| Is a | secretory granule | ||
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| Wikipedia:Platelet_alpha-granule | |||
