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General Information
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| Term |
proximal medullary amacrine neuron Pm2 |
ID (Ontology) |
FBbt:00003835 (Fly Anatomy) |
| Definition |
Proximal medullary wide-field amacrine neuron that projects along M7 and branches extensively at the M7/M8 boundary with each branch projecting into medulla layer M9 where it forms an arbor with mixed bleb-type and fine terminals (Morante and Desplan, 2008; Fischbach and Dittrich, 1989).[ FlyBase:FBrf0049410 FlyBase:FBrf0204652 ] |
| Also Known As |
"Pm2" |
| Comment |
Neurotransmitter determined to be glutamate based on vGlut[CNSIII]-GAL4 driver (FBti0129148) expression (Raghu and Borst, 2011 - FBrf0213690), but scRNAseq data assigns as GABA based on Gad1 transcripts and lineage (Konstantinides et al., 2022 - FBrf0253187). Nern et al. (2025) - FBrf0262545 identify two subtypes (Pm2a and Pm2b) in the EM data, but do not distinguish these at light level. |
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Links to External Ontologies
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VFB:FBbt_00003835
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Annotations
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Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
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| Data Class | Field | Records |
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| Insertions (FBti) | EXPRESSION_STAGE_TISSUE_POSITION | 4 |
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Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
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| Full annotation statements | Relevant FlyBase reports |
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| Alleles | | Insertions | Constructs |
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proximal medullary amacrine neuron Pm2 (all annotations which use CV term, excluding "NOT" statements) | 2 | 7 | 4 | 2 |
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Relationships