FB2024_03 , released June 25, 2024
Allele: Dmel\PsnI2
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General Information
Symbol
Dmel\PsnI2
Species
D. melanogaster
Name
FlyBase ID
FBal0324912
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
Psn12
Key Links
Genomic Maps

Nature of the Allele
Progenitor genotype
Cytology
Description

Amino acid replacement: W278term.

Mutation is predicted to result in a truncated protein ending in the middle of the sixth transmembrane domain.

Nucleotide substitution: G?A.

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

G20433860A

Reported nucleotide change:

TGG?TGA

Amino acid change:

W278term | Psn-PA; W278term | Psn-PB; W278term | Psn-PC; W278term | Psn-PD; W278term | Psn-PE

Reported amino acid change:

W278term

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 ( 1 )
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 1 )
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

Young (less than 10 days old) males heterozygous for PsnI2 do not show any defects in their courtship behavior or locomotor activity compared to wild-type. Their learning index during training with mated unreceptive female is also normal as is their immediate recall memory (assayed by measuring courtship behavior of a male which has just completed a training with a mated unreceptive female toward a receptive virgin female) and 60 min short-term memory (courtship of the trained male is assayed after a 60 min break).

Aged (30 or more days old) males heterozygous for PsnI2 also do not show any defects in the level or quality of naive courtship, locomotor activity, phototaxis or chemotaxis, however they display learning defects (fail to demonstrate the typical decrease in courtship activity when paired with an mated unreceptive female) as well as loss of short-term (60 min) memory is impaired (immediate recall memory is normal though).

The dorsal/ventral boundary fails to form correctly in PsnI2 mutant wing discs.

PsnB3/PsnI2 wing discs lack all cell fates distal to the wg expression domain, i.e. the wing pouch and margin.

Hemizygotes show late prepupal lethality, at the P4(i) prepupa stage.

Mutant larvae secrete a pupal case and complete the last stages of larval development but do not form any adult structures. They collapse into a homogeneous oily mass within the pupal case. The phenotype closely resembles that of Su(H) mutants. Wing margin structures are missing from mutant wing discs. Size of wing pouch is reduced. Clusters of supernumerary SOP cells arise at the position of normal SOP cell emergence. Lateral inhibition in the clusters is impaired.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Suppressed by
Statement
Reference

PsnI2 has abnormal learning | male | adult stage | progressive phenotype, suppressible by mGluR112b/mGluR[+]

PsnI2 has abnormal memory | male | adult stage | progressive phenotype, suppressible by mGluR112b/mGluR[+]

PsnI2 has abnormal learning | male | adult stage | progressive phenotype, suppressible by Ipp3/Ipp[+]

PsnI2 has abnormal memory | male | adult stage | progressive phenotype, suppressible by Ipp3/Ipp[+]

PsnI2 has abnormal memory | male | adult stage | progressive phenotype, suppressible by Itprwc361/Itp-r83A[+]

PsnI2 has abnormal memory | male | adult stage | progressive phenotype, suppressible by Itprwc703/Itp-r83A[+]

PsnI2 has abnormal memory | male | adult stage | progressive phenotype, suppressible by Itpr90B.0/Itp-r83A[+]

NOT suppressed by
Statement
Reference

PsnI2 has abnormal learning | male | adult stage | progressive phenotype, non-suppressible by Itprwc703/Itp-r83A[+]

PsnI2 has abnormal learning | male | adult stage | progressive phenotype, non-suppressible by Itpr90B.0/Itp-r83A[+]

PsnI2 has abnormal learning | male | adult stage | progressive phenotype, non-suppressible by mGluR2b/mGluR[+]

PsnI2 has abnormal memory | male | adult stage | progressive phenotype, non-suppressible by mGluR2b/mGluR[+]

PsnI2 has abnormal learning | male | adult stage | progressive phenotype, non-suppressible by Ipp1/Ipp[+]

PsnI2 has abnormal memory | male | adult stage | progressive phenotype, non-suppressible by Ipp1/Ipp[+]

PsnI2 has abnormal learning | male | adult stage | progressive phenotype, non-suppressible by Itprwc361/Itp-r83A[+]

Enhancer of
Statement
Reference
NOT Enhancer of
Statement
Reference
Suppressor of
Statement
Reference

PsnI2/Psn[+] is a suppressor | partially of visible | heat sensitive phenotype of Dcr-2UAS.cDa, EogtGD5084, Scer\GAL4en.PU

PsnI2/Psn[+] is a suppressor of abnormal learning | male | adult stage phenotype of Ipp3

NOT Suppressor of
Statement
Reference

PsnI2 is a non-suppressor of abnormal neuroanatomy | embryonic stage phenotype of Tace19

PsnI2/Psn[+] is a non-suppressor of abnormal learning | male | adult stage phenotype of Itpr90B.0

PsnI2/Psn[+] is a non-suppressor of abnormal learning | male | adult stage phenotype of Itprwc361

PsnI2/Psn[+] is a non-suppressor of abnormal learning | male | adult stage phenotype of Itprwc703

Phenotype Manifest In
Suppressed by
Statement
Reference

PsnI2 has wing disc phenotype, suppressible by HE31

PsnI2/PsnB3 has wing disc phenotype, suppressible by HE31

PsnI2/PsnB3 has wing margin phenotype, suppressible by HE31

NOT suppressed by
Statement
Reference
Enhancer of
Statement
Reference

PsnI2 is an enhancer of axon | embryonic stage phenotype of Tace19

NOT Enhancer of
Statement
Reference

PsnI2 is a non-enhancer of larval EW neuron | embryonic stage phenotype of Tace19

PsnI2 is a non-enhancer of axon | embryonic stage phenotype of Tace19

Suppressor of
Statement
Reference
NOT Suppressor of
Statement
Reference

PsnI2 is a non-suppressor of larval EW neuron | embryonic stage phenotype of Tace19

PsnI2 is a non-suppressor of axon | embryonic stage phenotype of Tace19

Additional Comments
Genetic Interactions
Statement
Reference

The wing blistering phenotype seen in the posterior compartment of wings in flies expressing EogtGD5084 under the control of Scer\GAL4en.PU in the presence of Dcr-2Scer\UAS.cDa is dominantly partially suppressed if the flies are also heterozygous for PsnI2.

The learning defects (measured in a courtship behavior assay) observed in PsnI2, Ipp1 or Ipp3 single heterozygote 30 day-old males are suppressed in the PsnI2/+;Ipp3/+ and the PsnI2/+;Ipp1/+ double heterozygotes. Combination with a single copy of Ipp3 (but not Ipp1) can also restore the short-term memory defects characteristic for the PsnI2 aged heterozygote males.

The age-onset learning and memory defects (measured in a courtship behavior assay) characteristic for PsnI2 heterozygote males are suppressed by combination with a single copy of the mGluR112b allele but not with the mGluR2b allele.

The learning defects observed in PsnI2, Itp-r83Awc361, Itp-r83Awc703 and Itp-r83A90B.0 single heterozygote 30 day-old males are not suppressed in the PsnI2/+;Itp-r83Awc361/+, PsnI2/+;Itp-r83Awc703/+ or PsnI2/+;Itp-r83A90B.0/+ double heterozygotes. Combination with a single copy of any of these alleles: Itp-r83Awc361 or Itp-r83Awc703 or Itp-r83A90B.0 can, however, restore the short-term memory defects characteristic for aged PsnI2 heterozygote males (Itp-r83A90B.0 can do so both at 30 and 40 days of age).

In contrast to PsnI2 single mutants, the dorsal/ventral boundary forms correctly in HE31; PsnI2 double mutants.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (2)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (9)
Reported As
Name Synonyms
Secondary FlyBase IDs
  • FBal0102924
  • FBal0097198
References (12)