FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term acrosomal vesicle ID (Ontology) GO:0001669 (Gene Ontology)
Definition A structure in the head of a spermatozoon that contains acid hydrolases, and is concerned with the breakdown of the outer membrane of the ovum during fertilization. It lies just beneath the plasma membrane and is derived from the lysosome.[ ISBN:0124325653 ISBN:0198506732 ]
Also Known As "acrosomal granule" ; "acrosome"
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  QuickGO data     AmiGO data
Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       2
Genes (FBgn)  GO_CELLULAR_COMPONENT       3
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes
 acrosomal vesicle (all annotations which use CV term, excluding "NOT" statements)       2      3
     is_active_in | acrosomal vesicle       --       2
     located_in | acrosomal vesicle       --       1
Spanning Tree (Parents/Children)
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endomembrane system__
secretory vesicle____|
                     secretory granule
                      |__acrosomal vesicle  6 rec.
                          |__acrosomal lumen
                          |__acrosomal matrix
                          |__acrosomal membrane 1 rec.
                              |__inner acrosomal membrane
                              |__outer acrosomal membrane 1 rec.
                              |__protein C inhibitor-acrosin complex
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Is a secretory granule
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Synonyms
  • "acrosomal granule" EXACT
    "acrosome" EXACT
Secondary IDs
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Wikipedia:Acrosome