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inner acrosomal membrane
Term Information
Accession
GO:0002079
Name
inner acrosomal membrane
Ontology
cellular_component
Synonyms
None
Alternate IDs
None
Definition
The acrosomal membrane region that underlies the acrosomal vesicle and is located toward the sperm nucleus. This region is responsible for molecular interactions allowing the sperm to penetrate the zona pellucida and fuses with the egg plasma membrane.
Source:
GOC:dph,
PMID:3899643,
PMID:8936405
Comment
Note that this term is not a descendant of 'organelle inner membrane ; GO:0019866' because the outer acrosomal membrane is a portion of the acrosomal membrane; the latter is a single lipid bilayer.
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