Datilografo is a nuclear C2H2 zinc-finger transcriptional regulator related to Rotund/Squeeze and vertebrate ZNF384. It contributes to neuronal subtype specification and projection development in the fly brain. Its function in selected cholinergic neurons supports female courtship acceptance, while distinct neuronal contexts contribute to locomotor behavior. Its endogenous DNA targets and the direction of regulation at individual promoters remain unresolved.
Summary: DATI immunostaining overlaps a nuclear fluorescent reporter in identified neurons, consistent with its zinc-finger transcription-regulatory role. This primary localization evidence supports the nuclear assignment independently of electronic inference.
Reason: DATI immunostaining overlaps a nuclear fluorescent reporter in identified neurons, consistent with its zinc-finger transcription-regulatory role. This primary localization evidence supports the nuclear assignment independently of electronic inference.
IMP PMID:25291190 The KRÜPPEL-like transcription factor DATILÓGRAFO is require...
KEEP AS NON CORE
Summary: Mutant and cell-specific RNAi experiments establish a locomotor phenotype, separable from courtship receptivity. Retain behavior as a downstream consequence of neuronal specification and function rather than a molecular activity.
Reason: Mutant and cell-specific RNAi experiments establish a locomotor phenotype, separable from courtship receptivity. Retain behavior as a downstream consequence of neuronal specification and function rather than a molecular activity.
IMP PMID:25291190 The KRÜPPEL-like transcription factor DATILÓGRAFO is require...
KEEP AS NON CORE
Summary: The full primary paper demonstrates malformed mushroom-body gamma lobes in dati mutants. This developmental role is retained as noncore; the study explicitly separates the gamma-lobe phenotype from the cells responsible for courtship acceptance.
Reason: The full primary paper demonstrates malformed mushroom-body gamma lobes in dati mutants. This developmental role is retained as noncore; the study explicitly separates the gamma-lobe phenotype from the cells responsible for courtship acceptance.
IMP PMID:25291190 The KRÜPPEL-like transcription factor DATILÓGRAFO is require...
ACCEPT
Summary: Dati is required for normal cholinergic projection-neuron morphology and innervation of olfactory regions. This is a central developmental role of the neuronal regulator, supported by loss-of-function and cell-specific analyses.
Reason: Dati is required for normal cholinergic projection-neuron morphology and innervation of olfactory regions. This is a central developmental role of the neuronal regulator, supported by loss-of-function and cell-specific analyses.
Together, these results show that dati is required in postmitotic neurons as well as in the precursors of these cells.
GO:0045925 positive regulation of female receptivity
IMP PMID:25291190 The KRÜPPEL-like transcription factor DATILÓGRAFO is require...
KEEP AS NON CORE
Summary: Dati function in selected cholinergic neurons is required for female courtship acceptance. Retain the well-supported behavioral consequence as noncore relative to neuronal specification; it is not reducible to locomotor impairment.
Reason: Dati function in selected cholinergic neurons is required for female courtship acceptance. Retain the well-supported behavioral consequence as noncore relative to neuronal specification; it is not reducible to locomotor impairment.
IMP PMID:25291190 The KRÜPPEL-like transcription factor DATILÓGRAFO is require...
ACCEPT
Summary: The primary study identifies defects in neuronal subtype specification and precursor/postmitotic requirements. This supports participation in neurogenesis, without asserting that Dati specifies all cholinergic identity or that its loss merely kills every affected neuron.
Reason: The primary study identifies defects in neuronal subtype specification and precursor/postmitotic requirements. This supports participation in neurogenesis, without asserting that Dati specifies all cholinergic identity or that its loss merely kills every affected neuron.
Homozygosity for dati1 causes loss of cholinergic projection neurons in the antennal lobe.
Core Functions
Acts as a zinc-finger transcriptional regulator supporting neuronal subtype specification and projection development; DNA-binding mechanism is inferred from the characterized family.
These computational predictions are reviewed separately from the GOA annotation set used for this review. The assessments below are from this project and do not constitute official GO annotations or endorsement by GO/UniProt. They are not included in the existing annotation review above.
Review rationale: A transcription-regulatory role is well supported, but the specific claim of transcriptional activation remains unresolved. The target primary study establishes neuronal specification and identifies its zinc-finger family without measuring activation of a defined target promoter. Related Nmp4/ZNF384 proteins can activate transcription in a context-dependent manner, which does not establish activation by Dati. The raw donor ZNF208 is a different zinc-finger protein and cannot supply a target-specific regulatory direction.
Supporting Evidence:
PMID:25291190: "dati encodes a zinc finger transcription factor closely related to rotund (rn) and squeeze (sqz) with homologs in several species, including humans"
PMID:25291190: "Here we described DATI, a zinc finger transcription factor related to the Drosophila Rotund and Squeeze and the vertebrate ZNF384"
PMID:11867614: "the native Nmp4 protein up-regulated transcription"
GO:0000978 RNA polymerase II cis-regulatory region sequence-specific DNA bindingGO_MF
Review rationale: Dati is a nuclear zinc-finger transcriptional regulator related to Rotund/Squeeze and vertebrate ZNF384, with a retained C2H2 finger array. Direct DNA-binding studies of the characterized Nmp4/ZNF384 family support transfer of the broad cis-regulatory DNA-binding mechanism; the neuronal specification phenotype supplies coherent target biological context. This is an evolutionary inference rather than a mapped Dati binding motif or target promoter. The same broad DNA-binding transcription-regulatory role was already established in the Dati literature before the prediction, so this is correct but not novel; activation versus repression remains unresolved.
Supporting Evidence:
PMID:25291190: "dati encodes a zinc finger transcription factor closely related to rotund (rn) and squeeze (sqz) with homologs in several species, including humans"
PMID:25291190: "Here we described DATI, a zinc finger transcription factor related to the Drosophila Rotund and Squeeze and the vertebrate ZNF384"
PMID:11867614: "Zinc fingers 2, 3, and 6 mediated association with the homopolymeric (dA.dT) COL1A1/MMP DNA consensus element."