Search Ontology:
GO: Cellular Component

platelet alpha granule

Term ID
GO:0031091
Synonyms
  • platelet alpha-granule
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). 8467233
References
Ontology
GO: Cellular Component    QuickGO    AmiGO
Relationships
has parts
is a type of
Phenotype
Phenotype caused by Genes
Citations
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