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).
A2109583G
Y311C | csw-PD; Y258C | csw-PA; Y358C | csw-PB; Y99C | csw-PC
Y258C
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.
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.
eye, with Scer\GAL4Tub.PU
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.
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, enhanceable by sty226/Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has eye phenotype, enhanceable by sty226/Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has ommatidium phenotype, enhanceable by sty226/Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has photoreceptor cell R7 | ectopic phenotype, enhanceable by sty226/Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, enhanceable by aosΔ7/Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, enhanceable by RasGAP1B2, Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, non-enhanceable by Scer\GAL4Tub.PU/drke0A
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, suppressible by Egfrt1, Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has photoreceptor cell R7 | ectopic phenotype, suppressible by SIIN, Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, suppressible by Scer\GAL4Tub.PU/Sos34Ea-6
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, suppressible by Ras85De1B, Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, suppressible by rl10a/Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has eye phenotype, suppressible by Egfrt1, Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has ommatidium phenotype, suppressible by Egfrt1, Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has photoreceptor cell R7 | ectopic phenotype, suppressible by Egfrt1, Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, suppressible | partially by spi1/Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, suppressible | partially by vnC221/Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, suppressible by SIIN, Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has eye phenotype, suppressible by SIIN, Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has ommatidium phenotype, suppressible by SIIN, Scer\GAL4Tub.PU
Scer\GAL4Tub.PU, cswY279C.UASp has wing vein phenotype, non-suppressible by Scer\GAL4Tub.PU/drke0A
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.
cswY279C.UASp is rescued by cswR465M.UASp/Scer\GAL4Tub.PU