A small subcellular vesicle, surrounded by a membrane, that is formed from the Golgi apparatus and contains a highly concentrated protein destined for secretion. Secretory granules move towards the periphery of the cell and upon stimulation, their membranes fuse with the cell membrane, and their protein load is exteriorized. Processing of the contained protein may take place in secretory granules. [ https://www.worldcat.org/search?q=bn%3A0198506732 GOC:mah ]
Term information
Note that the term 'secretory vesicle' is sometimes used in this sense, but can also mean 'transport vesicle ; GO:0030133'.
Term relations
- secretory vesicle
- in taxon some (not Ascomycota)
- not (in taxon some Ascomycota)
- part of some endomembrane system