FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term adult copper cell ID (Ontology) FBbt:00110908 (Fly Anatomy)
Definition Specialized cell of the adult midgut found in the anterior and middle midgut sections of region R3 (R3a and R3b, copper cell region). It secretes acid and accumulates copper. They show a distinct apical invagination, basally located nuclei, numerous mitochondria and a deeply invaginated apical membrane covered with long microvilli. Interstitial cells arch over the apex of the copper cell, forming a narrow channel that connects the apical invagination of the copper cell to the gut lumen. The highly folded area of apicolateral contact between copper and interstitial cells contains smooth septate junctions.[ FlyBase:FBrf0064792 FlyBase:FBrf0139611 FlyBase:FBrf0174753 FlyBase:FBrf0216495 FlyBase:FBrf0221749 FlyBase:FBrf0222542 FlyBase:FBrf0232530 ]
Also Known As "adult cuprophilic cell"
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 adult copper cell (all annotations which use CV term, excluding "NOT" statements)
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middle midgut
 |__copper cell___________________________________
midgut enterocyte                                 |
 |__copper cell___________________________________|
adult midgut enterocyte                           |
 |__enterocyte of middle adult midgut epithelium__|
adult midgut region                               |
 |__adult midgut region R3ab______________________|
adult midgut region R3                            |
 |__adult midgut region R3ab______________________|
 |__enterocyte of middle adult midgut epithelium__|
                                                  adult copper cell  22 rec.
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Is a copper cell
enterocyte of middle adult midgut epithelium
Part of adult midgut region R3ab
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