FB2024_03 , released June 25, 2024
Allele: Dmel\cswY279C.UASp
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General Information
Symbol
Dmel\cswY279C.UASp
Species
D. melanogaster
Name
FlyBase ID
FBal0241537
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

UASp regulatory sequences drive expression of csw containing the amino acid replacement Y258C (this mutation is equivalent to the Y279C mutation in the human ortholog Hsap\PTPN11, which is a mutation associated with LEOPARD syndrome in humans).

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

A2109583G

Amino acid change:

Y311C | csw-PD; Y258C | csw-PA; Y358C | csw-PB; Y99C | csw-PC

Reported amino acid change:

Y258C

Comment:

Analogous mutation in human PTPN11 implicated in Leopard syndrome 1; mutation carried on in vitro construct; site of nucleotide substitution in fly gene and specific disease association inferred by FlyBase curator.

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 ( 1 )
 

FlyBase curator comment: The mutation in cswY279C.Scer\UAS.P\T is equivalent to the loss-of-function Y279C mutation in the human ortholog Hsap\PTPN11, which is associated with LEOPARD syndrome in humans. Although the mutant protein had no phosphatase activity it resulted in gain-of-function ectopic wing vein and rough eye phenotypes; it is not clear how these relate to phenotypes observed in LEOPARD syndrome.

Disease-implicated variant(s)
 
This allele represents a human variant implicated in disease.
PTPN11:p.Tyr279Cys
Variants Synonym(s)
PTPN11:p.Tyr278Cys
Associated human disease model(s)
External database links
Comments concerning this variant
Phenotypic Data
Phenotypic Class
Phenotype Manifest In
Detailed Description
Statement
Reference

Expression of cswY279C.Scer\UAS under the control of Scer\GAL4tub does not affect viability or fertility. While expression does not appear to affect early development, all Scer\GAL4tub-cswY279C.Scer\UAS adult flies display ectopic wing veins, mainly in the peripheral area of L2 and the posterior cross vein. Additionally, there are numerous small ectopic vein structures widely spread over the entire cswY279C.Scer\UAS-expressing area on the wing.

Flies expressing cswY279C.Scer\UAS under the control of Scer\GAL4tub exhibit a rough eye phenotype. although the size of the eye is not obviously affected, the arrangement of the ommatidia is altered. The ommatidia are not symmetrically organised, with microscopy sections revealing the presence of multiple R7 photoreceptors in 24.5% of ommatidia. These eyes also display abnormalities of ommatidial rotation (20% of ommatidia).

Flies expressing both cswY279C.Scer\UAS and cswR465M.Scer\UAS under the control of Scer\GAL4tub results in strong suppression of ectopic wing vein formation. The number of R7 photoreceptors is normal, along with ommatidial rotation.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Enhanced by
NOT Enhanced by
Statement
Reference
Suppressed by
Statement
Reference
NOT suppressed by
Statement
Reference
Additional Comments
Genetic Interactions
Statement
Reference

The presence of a sty226 background significantly enhances ectopic wing vein formation found in cswY279C.Scer\UAS (Scer\GAL4tub) mutants.

A sty226 background enhances the cswY279C.Scer\UAS (Scer\GAL4tub) rough eye phenotype, with the number of R7 in each ommatidium increasing.

The presence of a Egfrt1 background significantly suppresses ectopic wing vein formation found in cswY279C.Scer\UAS (Scer\GAL4tub) mutants.

A Egfrt1 background suppresses the cswY279C.Scer\UAS (Scer\GAL4tub) rough eye phenotype, normalizing the numbers of R7 and ommatidial rotation.

The presence of a drke0A background does not affect ectopic wing vein formation in cswY279C.Scer\UAS (Scer\GAL4tub) mutants.

The presence of a spi1 background causes minor suppression of ectopic wing vein formation found in cswY279C.Scer\UAS (Scer\GAL4tub) mutants.

The presence of a vnC221 background causes minor suppression of ectopic wing vein formation found in cswY279C.Scer\UAS (Scer\GAL4tub) mutants.

The presence of a argosΔ7 background significantly enhances ectopic wing vein formation found in cswY279C.Scer\UAS (Scer\GAL4tub) mutants.

The presence of a SIIN background significantly suppresses ectopic wing vein formation found in cswY279C.Scer\UAS (Scer\GAL4tub) mutants.

A SIIN background suppresses the cswY279C.Scer\UAS (Scer\GAL4tub) rough eye phenotype, normalizing the numbers of R7 and ommatidial rotation.

The presence of a Sos34Ea-6 background significantly suppresses ectopic wing vein formation found in cswY279C.Scer\UAS (Scer\GAL4tub) mutants.

The presence of a Ras85De1B background significantly suppresses ectopic wing vein formation found in cswY279C.Scer\UAS (Scer\GAL4tub) mutants.

A Ras85De1B background suppresses the cswY279C.Scer\UAS (Scer\GAL4tub) rough eye phenotype, normalizing the numbers of R7 and ommatidial rotation.

The presence of a Gap1B2 background significantly enhances ectopic wing vein formation found in cswY279C.Scer\UAS (Scer\GAL4tub) mutants.

The presence of a rl10a background significantly suppresses ectopic wing vein formation found in cswY279C.Scer\UAS (Scer\GAL4tub) mutants.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (3)
Reported As
Symbol Synonym
cswY279C.Scer\UAS.P\T
cswY279C.Scer\UAS
cswY279C.UASp
Name Synonyms
Secondary FlyBase IDs
    References (2)