FB2026_03 , released September 17, 2026
CV Term Report
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Term embryonic peripheral glial cell 4 ID (Ontology) FBbt:00001328 (Fly Anatomy)
Definition An embryonic peripheral glial cell located distally to the transition zone between the CNS and the PNS on segmental nerve, near the point where it splits from the intersegmental nerve (ISN). It develops from the same sensory organ precursor cell located in the ventral neuroectoderm as embryonic peripheral glial cell 5 (von Hilchen et al., 2008) and gives rise to a subperineurial glial cell (von Hilchen et al., 2013).[ FlyBase:FBrf0049575 FlyBase:FBrf0054242 FlyBase:FBrf0064795 FlyBase:FBrf0204826 FlyBase:FBrf0222452 ]
Also Known As"ePG4" ; "peripheral glial cell 1" ; "peripheral glial cell 1 of SN"
CommentThe position of the cell body of ePG4 is very stable: it is found at its position 96% of the time. Rarely, it can be found at the position of ePG5 (4%). This analysis was done using specific cell markers and taking into account which nerve the cell is associated with (von Hilchen et al., 2008).
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VFB:FBbt_00001328
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 embryonic peripheral glial cell 4 (all annotations which use CV term, excluding "NOT" statements)
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  embryonic glial cell
   |__embryonic peripheral glial cell
       |__embryonic peripheral glial cell 4  27 rec.
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Is a embryonic peripheral glial cell
Develops from sensory mother cell
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VFB:FBbt_00001328