egr1 homozygous retinas exhibit accumulation of lipid droplets in 1-day-old flies and retinal degeneration in 2-weeks-old flies when compared to controls.
egr1 homozygotes show apparently normal L3 male gonads.
egr1 mutant embryonic ventral nerve cords have no differences in the volume of apoptotic particles, the percentage of apoptotic particles that are not engulfed by phagocytes, the number of phagosomes, or the number of EVE, DAC or CUT expressing neurons, compared to controls; following irradiation, the increase in apoptotic particles and the decrease in the number of DAC expressing neurons occurs to a lesser extent than in controls.
Homozygous flies are resistant to V. cholerae infection compared to controls.
egr1 mutant flies show a slight increased susceptibility to challenge by Staphylococcus aureus or Enterococcus faecalis compared to wild type flies.
Hemolymph clots from egr1 homozygous third instar larvae show much reduced levels of melanization.
When mutant animals are infected by S.typhimurium, the mean time to death is lengthened by 3 days compared to wild-type animals.
egr1, scrib1 has hyperplasia | somatic clone | pupal stage phenotype, suppressible by egrUAS.cIa/Scer\GAL4Act5C.PI
egr1, scrib1 has lethal | somatic clone | pupal stage phenotype, suppressible by egrUAS.cIa/Scer\GAL4Act5C.PI
egr1/egr[+] is an enhancer of visible | adult stage phenotype of HAdV-C\E4orf4UAS.cPa, Scer\GAL4GMR.PF
egr1/egr[+] is an enhancer of abnormal size | adult stage phenotype of HAdV-C\E4orf4UAS.cPa, Scer\GAL4GMR.PF
egr1/egr1 is a non-enhancer of increased cell death | embryonic stage phenotype of Scer\GAL4elav.PU, rprUAS.cUa
egr1/egr[+] is a suppressor | partially of increased cell death | larval stage phenotype of RpS3Plac92, ykiB5
egr1/egr[+] is a suppressor | partially of visible | adult stage phenotype of RpS3Plac92, ykiB5
egr1/egr[+] is a suppressor | partially of decreased size | adult stage phenotype of RpS3Plac92, ykiB5
egr1/egr1 is a suppressor | partially of abnormal size | recessive | male | third instar larval stage phenotype of Stripjam
egr1/egr3 is a suppressor of neoplasia phenotype of Ras85DV12.UAS, Scer\GAL4Act5C.PP, scrib1
egr1/egr1 is a suppressor of increased cell death | embryonic stage phenotype of Scer\GAL4elav.PU, hidUAS.cUa
egr1/egr1 is a suppressor of decreased cell number | embryonic stage phenotype of Scer\GAL4elav.PU, hidUAS.cUa
egr1/egr1 is a suppressor of abnormal neuroanatomy | embryonic stage phenotype of Scer\GAL4elav.PU, hidUAS.cUa
egr1 is a suppressor of neoplasia | somatic clone | third instar larval stage phenotype of Ras85DV12.UAS, Scer\GAL4Act.PU
egr1/egr3 is a suppressor | partially of increased cell death | somatic clone | third instar larval stage phenotype of RokCAT.UAS, Scer\GAL4Tub.PU
egr1/egr3 is a suppressor of increased cell death | somatic clone | third instar larval stage phenotype of scrib1
egr1 is a suppressor of increased cell death | somatic clone | third instar larval stage phenotype of scrib1
egr1/egr1 is a non-suppressor of neoplasia | larval stage phenotype of Ras85DV12.UAS, Scer\GAL4hh.PU, dlg1GD4689
egr1/egr1 is a non-suppressor of neoplasia | larval stage phenotype of BacA\p35UAS.cHa, Scer\GAL4hh.PU, rodGD8768
egr1/egr3 is a non-suppressor of neoplasia phenotype of Scer\GAL4rn-GAL4-5, Syx7GD2767
egr1/egr1 is a non-suppressor of increased cell death | embryonic stage phenotype of Scer\GAL4elav.PU, rprUAS.cUa
egr1, scrib1 has lethal | somatic clone | pupal stage phenotype
egr1, scrib1 has hyperplasia | somatic clone | pupal stage phenotype
egr1/egr[+] is an enhancer of eye phenotype of HAdV-C\E4orf4UAS.cPa, Scer\GAL4GMR.PF
egr1/egr1 is a non-enhancer of larval ventral nerve cord | embryonic stage phenotype of Scer\GAL4elav.PU, rprUAS.cUa
egr1/egr[+] is a suppressor of embryonic/larval fat body | larval stage phenotype of Noc1JF02014, Scer\GAL4P0206
egr1/egr[+] is a suppressor | partially of wing phenotype of RpS3Plac92, ykiB5
egr1/egr[+] is a suppressor | partially of wing disc | larval stage phenotype of RpS3Plac92, ykiB5
egr1/egr3 is a suppressor of eye-antennal disc | somatic clone | third instar larval stage phenotype of Ras85DV12.UAS, Scer\GAL4Act.PU, scrib1
egr1/egr1 is a suppressor of neuron | embryonic stage phenotype of Scer\GAL4elav.PU, hidUAS.cUa
egr1/egr1 is a suppressor of larval ventral nerve cord | embryonic stage phenotype of Scer\GAL4elav.PU, hidUAS.cUa
egr1 is a suppressor of eye disc | somatic clone | third instar larval stage phenotype of Ras85DV12.UAS, Scer\GAL4Act.PU
egr1 is a suppressor of eye-antennal disc | somatic clone | third instar larval stage phenotype of scrib1
egr1 is a suppressor of wing disc | somatic clone | third instar larval stage phenotype of scrib1
egr1/egr1 is a non-suppressor of wing disc phenotype of Ras85DV12.UAS, Scer\GAL4hh.PU, dlg1GD4689
egr1/egr1 is a non-suppressor of wing disc phenotype of BacA\p35UAS.cHa, Scer\GAL4hh.PU, rodGD8768
egr1/egr1 is a non-suppressor of larval ventral nerve cord | embryonic stage phenotype of Scer\GAL4elav.PU, rprUAS.cUa
egr1/egr3, scrib1 has eye-antennal disc | somatic clone | third instar larval stage phenotype
Third instar larval eye-antennal imaginal disc clones homozygous for scrib1 and expressing Ras85DV12.Scer\UAS under the control of Scer\GAL4Act.PU do not induce significant autophagosomes (assessed by a Atg8a fluorescence reporter) in neighboring disc cells if the full organism is egr1/egr3 transheterozygous.
A egr1 mutant background suppresses the overgrowth seen in eye-antennal disc clones expressing Ras85DV12.Scer\UAS under the control of Scer\GAL4Act.PU.
egr1/egr3 partially suppresses the cell death observed in eye-antennal disc clones expressing RokCAT.Scer\UAS under the control of Scer\GAL4tub.PU.
The egr1/egr3 background fully suppresses the increased cell death seen in eye-antennal disc scrib1/scrib1 mutant clones, and also leads to overgrowth of these clones.
In an egr1 mutant background, scrib1 mutant clones in the eye-antennal disc are no longer eliminated, but grow aggressively and develop into tumours. In this background, expression of egrScer\UAS.cIa under the control of Scer\GAL4Act.PU only in the cells surrounding the scrib1 clones reverses the tumour phenotype; the scrib1 clones do not overgrow and are out-competed by the surrounding cells.
scrib1 mutant clones survive in egr1 mutant eye-antennal discs background. Overgrowth of double mutant cells is observed, and tumor development is observed in pupal eye-antennal tissue. scrib1 mutant clones generated in egr1 mutant wing discs also survive, and tumor development is observed in the wing disc.
Tumour formation and animal lethality are both completely rescued by over-expression of egrScer\UAS.cIa under the control of Scer\GAL4Act5C.PI in scrib1, egr1 double mutant clones.
One copy of egr1 enhances the reduction in eye size seen in both males and females when Zzzz\E4orf4Scer\UAS.cPa is expressed under the control of Scer\GAL4GMR.PF at either 24[o]C or 29[o]C. An enhancement is also seen in females at 18[o]C, but no difference is observed in males.
egr1 is rescued by egrUAS.cIa/Scer\GAL4He.PZ
Expression of egrScer\UAS.cIa under the control of Scer\GAL4He.PZ in a egr1 homozygous mutant background restores melanization levels in hemolymph clots to above wild-type levels.