Nucleotide substitution: G370A. Mutation in splice acceptor consensus site.
G19698306A
G370A
abnormal wound healing | embryonic stage (with Cdc426)
embryo | maternal effect (with Cdc426)
Cdc424/Cdc426 embryos show defects in epithelial wound repair. The expansion and coalescence phases are not significantly delayed and by contraction, the wounds have become rounded, consistent with the presence of a functional actomyosin cable. There is a severe reduction of filopodia and lamellipodia protrusions in the leading edge cells throughout the wound repair process. The contraction phase is doubled in length compared to wild type. The wound cannot be sealed and a small hole remains at the end of the process.
26% of Cdc424 mutant R cell clones target normally, whereas 23% select inappropriate target columns and 51% fail to extend. Some photoreceptors display morphological defects in the retina, although this phenotype did not correlate with the axon targeting phenotype.
Homozygous tracheal terminal cells have very strong defects in branching and lumen formation.
VS1 neurons that are homozygous for Cdc423 often have defects in dendrite caliber; distal dendrites can be thicker than proximal dendrites and dendrites can also be thinner near major branches than wild-type. The dendrites of Cdc423 cells are also often misguided: for example, a dendrite can innervate the ventral region of the dendritic field, even though it has originated from a dorsal branch. Additionally, the most medial branch in the dendritic tree is shifted medially, resulting in a more pronounced split between the dorsal and ventral halves of the dendritic field. The axonal terminus of a Cdc423 VS1 neuron has an increase in the number of branches, is often tipped with enlarged structures and can have axons that turn laterally away from the midline. Dendrites are significantly longer in mutants than in wild type and there is a 50% reduction in numbers of well-developed dendritic spines.
Cdc424/Cdc426 combinations produce over 70% embryonic lethality, even when outcrossed to wild-type males. In Cdc424/Cdc426 germ-line clones, the specialised actin filaments that project outward from the nurse cell ring canals appear to be enhanced. Although Cdc424 germ-line clones fail to produce functional oocytes, their anterior posterior polarity appears to be unaffected.
Cdc424 has abnormal neuroanatomy | somatic clone phenotype, non-suppressible by Scer\GAL4elav-C155/gekUAS.cGa
Cdc42[+]/Cdc424 is an enhancer of abnormal planar polarity phenotype of MtlUAS.cMa, Scer\GAL4hs.2sev
Cdc42[+]/Cdc424 is a non-enhancer of abnormal neurophysiology | third instar larval stage | recessive phenotype of GluRIIASP16
Cdc42[+]/Cdc424 is a non-enhancer of abnormal neuroanatomy phenotype of PsGEFΔ21
Cdc424 is a non-enhancer of visible phenotype of Scer\GAL4GMR.PF, pblUAS.cPa
Cdc424 is a suppressor of abnormal neurophysiology | third instar larval stage phenotype of Dyb11
Cdc42[+]/Cdc424 is a suppressor of abnormal neuroanatomy phenotype of PakUAS.Tag:MYC, Scer\GAL4ey-OK107
Cdc42[+]/Cdc424 is a suppressor of abnormal neuroanatomy | somatic clone phenotype of ssh1-11
Cdc42[+]/Cdc424 is a suppressor of abnormal neuroanatomy phenotype of LIMK1UAS.Tag:HA, Scer\GAL4ey-OK107
Cdc424/PakUAS.Tag:Myr(Src64B), Scer\GAL4eve.RN2 is a non-suppressor of abnormal neuroanatomy | embryonic stage phenotype of Scer\GAL4eve.RN2, dockJF02810
Cdc424/PakUAS.Tag:Myr(Src64B), Scer\GAL4eve.RN2 is a non-suppressor of abnormal neuroanatomy | embryonic stage phenotype of Dscam1HMS01859, Scer\GAL4eve.RN2
Cdc42[+]/Cdc424 is a non-suppressor of abnormal neuroanatomy | heat sensitive phenotype of Nl1N-ts1
Cdc42[+]/Cdc424 is a non-suppressor of abnormal neurophysiology | recessive | third instar larval stage phenotype of GluRIIASP16
Cdc42[+]/Cdc424 is a non-suppressor of visible | adult stage phenotype of Scer\GAL4GMR.PU, pblDH-PH.UAS.Tag:HA
Cdc424 is a non-suppressor of visible phenotype of LIMK1UAS.cCa, Scer\GAL4en-e16E
Cdc424 is a non-suppressor of visible phenotype of Scer\GAL4GMR.PF, pblUAS.cPa
Cdc42[+]/Cdc424, ExnEY01953/Exn[+], GluRIIASP16 has abnormal neurophysiology | recessive | third instar larval stage phenotype
Cdc424 has eye photoreceptor cell | somatic clone phenotype, non-suppressible by Scer\GAL4elav-C155/gekUAS.cGa
Cdc42[+]/Cdc424 is an enhancer of ommatidium phenotype of MtlUAS.cMa, Scer\GAL4hs.2sev
Cdc424 is an enhancer of mesonotum phenotype of PvrRNAi.UAS, Scer\GAL4pnr-MD237
Cdc424 is an enhancer of thorax phenotype of PvrRNAi.UAS, Scer\GAL4pnr-MD237
Cdc42[+]/Cdc424 is a non-enhancer of embryonic/larval neuromuscular junction phenotype of GluRIIASP16
Cdc42[+]/Cdc424 is a non-enhancer of adult mushroom body alpha-lobe phenotype of PsGEFΔ21
Cdc42[+]/Cdc424 is a non-enhancer of mitotic domain 1 | embryonic cycle 14 phenotype of CycB+t10
Cdc424 is a non-enhancer of eye phenotype of Scer\GAL4GMR.PF, pblUAS.cPa
Cdc424 is a suppressor of A1-7 ventral longitudinal muscle cell | larval stage phenotype of Dyb11
Cdc42[+]/Cdc424 is a suppressor of adult mushroom body phenotype of PakUAS.Tag:MYC, Scer\GAL4ey-OK107
Cdc42[+]/Cdc424 is a suppressor of adult mushroom body | somatic clone phenotype of ssh1-11
Cdc42[+]/Cdc424 is a suppressor of adult mushroom body phenotype of LIMK1UAS.Tag:HA, Scer\GAL4ey-OK107
Cdc424/PakUAS.Tag:Myr(Src64B), Scer\GAL4eve.RN2 is a non-suppressor of larval DA1 motor neuron | embryonic stage phenotype of Dscam1HMS01859, Scer\GAL4eve.RN2
Cdc424/PakUAS.Tag:Myr(Src64B), Scer\GAL4eve.RN2 is a non-suppressor of dendrite | embryonic stage phenotype of Dscam1HMS01859, Scer\GAL4eve.RN2
Cdc424/PakUAS.Tag:Myr(Src64B), Scer\GAL4eve.RN2 is a non-suppressor of larval DA1 motor neuron | embryonic stage phenotype of Scer\GAL4eve.RN2, dockJF02810
Cdc424/PakUAS.Tag:Myr(Src64B), Scer\GAL4eve.RN2 is a non-suppressor of dendrite | embryonic stage phenotype of Scer\GAL4eve.RN2, dockJF02810
Cdc42[+]/Cdc424 is a non-suppressor of larval intersegmental nerve | heat sensitive phenotype of Nl1N-ts1
Cdc42[+]/Cdc424 is a non-suppressor of larval intersegmental nerve branch ISNb of A1-7 | heat sensitive phenotype of Nl1N-ts1
Cdc42[+]/Cdc424 is a non-suppressor of larval segmental nerve branch SNa of A1-7 | heat sensitive phenotype of Nl1N-ts1
Cdc42[+]/Cdc424 is a non-suppressor of embryonic/larval neuromuscular junction phenotype of GluRIIASP16
Cdc42[+]/Cdc424 is a non-suppressor of eye | adult stage phenotype of Scer\GAL4GMR.PU, pblDH-PH.UAS.Tag:HA
Cdc424 is a non-suppressor of wing phenotype of LIMK1UAS.cCa, Scer\GAL4en-e16E
Cdc42[+]/Cdc424 is a non-suppressor of mitotic domain 1 | embryonic cycle 14 phenotype of CycB+t10
Cdc424 is a non-suppressor of eye phenotype of Scer\GAL4GMR.PF, pblUAS.cPa
Cdc42[+]/Cdc424, ExnEY01953/Exn[+], GluRIIASP16 has embryonic/larval neuromuscular junction phenotype
The dendritogenesis defects in the embryonic aCC motoneurons characteristic for embryos expressing either Dscam1HMS01859 or dockJF02810 RNAi under the control of Scer\GAL4eve.RN2 are partially suppressed by co-expression of PakScer\UAS.T:Myr-Src64B : the reduced dendritic number is fully restored but the region containing primary dendritic processes is expanded compared to controls. This rescue effect is however blocked in the presence of either Cdc426 or Cdc424 (in hemizygous state). No suppression of the loss of dendritic tips is observed upon co-expression with PakScer\UAS.T:Lhem\EosFP-m2.
Expression of gekScer\UAS.cGa under the control of Scer\GAL4elav-C155 fails to suppress the axon targeting phenotypes seen in Cdc424 mutant clones.
The Cdc424/+ heterozygous mutation does not suppress or enhance the GluRIIASP16 NMJ synaptic homeostasis phenotype. There is no deficit in synaptic bouton number in Cdc424/+ , GluRIIASP16 double mutants, compared to wild-type or GluRIIASP16 controls.
Synaptic homeostasis is completely blocked in larvae that are double heterozygotes for Cdc424/+ and ExnEY01953/+ in a GluRIIASP16 mutant genetic background.
Expression of Rho11.dsRNA.Scer\UAS under the control of Scer\GAL4Act5C.PI does not affect the adherens junctions between Cdc424 mutant cells.
One copy of Cdc424 fails to suppress the rough eye phenotype seen when pblDH-PH.Scer\UAS.T:Ivir\HA1 is expressed under the control of Scer\GAL4GMR.PU.
Cdc424/+ has very little effect on the mutant wing phenotype caused by expression of LIMK1Scer\UAS.cCa under the control of Scer\GAL4en-e16E (the % of wings with normal morphology at 18oC is 10% compared to 9% for control flies expressing LIMK1Scer\UAS.cCa under the control of Scer\GAL4en-e16E in an otherwise wild-type background). The frequency of the malformed leg phenotype seen in Sb63b/+ heterozygotes (8%) is not increased if the flies are also heterozygous for Cdc424/+ (6%). The frequency of the malformed leg phenotype seen in Sb70/+ heterozygotes (7%) is not increased if the flies are also heterozygous for Cdc424/+ (8%).
Cdc424 is rescued by Cdc42Ubi-p63E.Tag:MYC
Cdc424 is rescued by Cdc42Ubi-p63E.PF
Cdc424 is partially rescued by Cdc42UAS.cLa/Scer\GAL4elav.PLu
Expression of Cdc42Scer\UAS.cLa under the control of Scer\GAL4elav.PLu rescues the dendritic caliber and branching pattern phenotype of Cdc424 mutants in VS1 neurons. However, this expression is unable to rescue many of the VS1 defects such as dendrites being significantly longer than in wild-type and reduction of well developed dendritic spines.