Term Information

Accession
GO:0033011
Name
perinuclear theca
Ontology
cellular_component
Synonyms
None
Alternate IDs
None
Definition
A condensed cytoplasmic structure that covers the nucleus of mammalian spermatozoa except for a narrow zone around the insertion of the tail. It shows two distinct regions, a subacrosomal layer and, continuing caudally beyond the acrosomic system, the postacrosomal sheath. The perinuclear theca has been considered a cytoskeletal scaffold responsible for maintaining the overall architecture of the mature sperm head; however, recent studies indicate that the bulk of its constituent proteins are not traditional cytoskeletal proteins but rather a variety of cytosolic proteins. Source: PMID:8025156, PMID:17289678
Comment
None
History
See term history for GO:0033011 at QuickGO
Subset
None
Feedback
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Comments, changes to terms, or requests for new ontology terms can be made at GO issue tracker on GitHub.

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Parents of perinuclear theca (GO:0033011)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
perinuclear theca [is_a relation] is_a  cytoskeleton (GO:0005856)
perinuclear theca [is_a relation] is_a  cytoplasmic part (GO:0044444)
perinuclear theca [BFO:0000050 relation] BFO:0000050  perinuclear region of cytoplasm (GO:0048471)
Children of perinuclear theca (GO:0033011)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
cytoskeletal calyx (GO:0033150) [BFO:0000050 relation] BFO:0000050  perinuclear theca
None.