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Ontology Browser

inner acrosomal membrane (GO:0002079)
Annotations: Rat: (4) Mouse: (4) Human: (5) Chinchilla: (4) Bonobo: (4) Dog: (5) Squirrel: (4) Pig: (6)
Parent Terms Term With Siblings Child Terms
acrosomal membrane +     
membrane region +     
annulate lamellae  
attachment organelle membrane 
inner acrosomal membrane  
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.
membrane microdomain +   
outer acrosomal membrane  
prospore membrane leading edge 
protein C inhibitor-acrosin complex 

Definition Sources: GOC:dph, PMID:3899643, PMID:8936405

paths to the root


RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.