FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\Fmr1I244N
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General Information
Symbol
Dmel\Fmr1I244N
Species
D. melanogaster
Name
FlyBase ID
FBal0197926
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Transgenic product class
Nature of the Allele
Transgenic product class
Progenitor genotype
Carried in construct
Cytology
Description

Amino acid replacement: I244N.

Allele components
Component
Use(s)
Regulatory region(s)
Encoded product / tool
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Nucleotide change:

T10105298A

Amino acid change:

I244N | Fmr1-PA; I244N | Fmr1-PB; I244N | Fmr1-PC; I244N | Fmr1-PD; I206N | Fmr1-PE; I206N | Fmr1-PF; I292N | Fmr1-PG; I292N | Fmr1-PH; I206N | Fmr1-PI; I244N | Fmr1-PJ; I244N | Fmr1-PK

Reported amino acid change:

I244N

Comment:

Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.

Variant Molecular Consequences
Associated Sequence Data
DNA sequence
Protein sequence
 
Expression Data
Reporter Expression
Additional Information
Statement
Reference
 
Marker for
Reflects expression of
Reporter construct used in assay
Human Disease Associations
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 0 )
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 0 )
Disease
Interaction
References
Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
 
Disease-implicated variant(s)
 
Phenotypic Data
Phenotypic Class
Phenotype Manifest In

neuron & beta-lobe, with Fmr13

Detailed Description
Statement
Reference

Flies carrying one copy of Fmr1I244N in a homozygous Fmr13 background show no significant increase in the number of type I boutons at the larval neuromuscular junction compared to wild type (muscles 6/7, 12 and 4 from segment A3 have been studied).

Flies carrying Fmr1I244N in a homozygous Fmr13 background show an increased frequency of midline crossing of mushroom body β-lobe neurons compared to controls.

Animals carrying Fmr1I244N in a homozygous Fmr13 background show a significant increase in the percentage of flies that are arrhythmic for locomotor activity under constant darkness conditions compared to controls.

Animals carrying Fmr1I244N in a homozygous Fmr13 background show a reduced courtship index towards virgin females than that seen in wild-type males.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (1)
Reported As
Symbol Synonym
Name Synonyms
Secondary FlyBase IDs
    References (2)