FB2026_03 , released September 17, 2026
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Term protein body ID (Ontology) FBbt:00004944 (Fly Anatomy)
Definition Protein aggregate that forms a dark and dense structure found in the nucleus of a developing spermatid. It is first visible at the agglomeration stage, gradually increasing in size during the pre-elongation stage.[ FlyBase:FBrf0064778 ]
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spermatid cyst
 |__spermatid________________________
anatomical structure                 |
 |__cell component___________________|
male organism                        |
 |__male-specific anatomical entity__|
male germline cell                   |
 |__spermatid________________________|
anatomical entity                    |
 |__male-specific anatomical entity__|
                                     protein body  3 rec.
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Is a cell component
male-specific anatomical entity
Part of spermatid
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