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.
G20433860A
TGG?TGA
W278term | Psn-PA; W278term | Psn-PB; W278term | Psn-PC; W278term | Psn-PD; W278term | Psn-PE
W278term
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.
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.
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[+]
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[+]
PsnI2 is an enhancer of abnormal neuroanatomy | embryonic stage phenotype of Tace19
PsnI2 is a non-enhancer of abnormal neuroanatomy | embryonic stage phenotype of Tace19
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
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
PsnI2/PsnB3 has wing margin phenotype, suppressible by HE31
PsnI2/PsnB3 has wing margin phenotype, suppressible by Nint.SH.UAS/Scer\GAL4dpp.blk1
PsnI2/PsnB3 has wing disc phenotype, suppressible by Nint.SH.UAS/Scer\GAL4dpp.blk1
PsnI2/PsnB3 has wing disc phenotype, non-suppressible by DeltaUAS.cHa/Scer\GAL4dpp.blk1
PsnI2/PsnB3 has wing margin phenotype, non-suppressible by DeltaUAS.cHa/Scer\GAL4dpp.blk1
PsnI2 is an enhancer of axon | embryonic stage phenotype of Tace19
PsnI2 is an enhancer of larval EW neuron | embryonic stage phenotype of Tace19
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
PsnI2/Psn[+] is a suppressor | partially of wing blade posterior compartment | heat sensitive phenotype of Dcr-2UAS.cDa, EogtGD5084, Scer\GAL4en.PU
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
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).