FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Allele: Dmel\norpAP16
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General Information
Symbol
Dmel\norpAP16
Species
D. melanogaster
Name
FlyBase ID
FBal0013128
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Allele class
Nature of the Allele
Allele class
Progenitor genotype
Cytology
Description

Nucleotide substitution: C1733T (nucleotide numbering as in FBrf0047660). Amino acid replacement: R361C.

Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Nucleotide change:

C4357785T

Reported nucleotide change:

C1733T

Amino acid change:

R361C | norpA-PA; R361C | norpA-PB; R361C | norpA-PC; R361C | norpA-PD; R361C | norpA-PE; R361C | norpA-PF

Reported amino acid change:

R361C

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
Detailed Description
Statement
Reference

norpA35 homozygous adults show extremely slow deactivation kinetics.

The amplitude of quantum bumps in mutant photoreceptors is smaller than wild type (when ATP is present in the intracellular solution during recordings). When ATP is absent from the intracellular solution during recordings, the amplitude of quantum bumps from mutant photoreceptors increases to values approaching wild type.

The size and shape of the quantum bumps are unaffected, although the latency is significantly different from wild type.

The electroretinogram (ERG) of norpA35 flies shows reduced amplitude and slower response kinetics compared to that of wild-type flies.

The amplitude response to vapours of all odorants tested in the maxillary palp is not significantly different from wild type. The antennal response is also unaffected.

intermediate ERG

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Suppressed by
Statement
Reference
NOT suppressed by
Statement
Reference

norpAP16 has abnormal neurophysiology phenotype, non-suppressible by mtsXE-2258/mts[+]

Phenotype Manifest In
Suppressed by
Statement
Reference

norpAP16 has photoreceptor neuron phenotype, suppressible by rdgA1

Suppressor of
Statement
Reference

norpAP16 is a suppressor of rhabdomere phenotype of rdgA1

Additional Comments
Genetic Interactions
Statement
Reference

The homozygous norpA35 deactivation defects are not rescued when in combination with mtsXE-2258/+.

norpA35 almost completely suppresses the retinal degeneration seen in rdgA1 flies.

The small amplitude of quantum bumps in norpA35 photoreceptors (seen when ATP is present in the intracellular solution during recordings) is increased in size to near wild-type levels if the flies are also mutant for rdgA1.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer

Pak.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (4)
References (12)