The P{EP} insertion is 427bp upstream of the putative ATG start codon in the same orientation to the transcription unit.
The P{EP}Sir2EP2300 insertion maps within both Sir2 and DnaJ-H (overlapping genes on opposite strands).
Expression of Sirt1EP2300 under the control of Scer\GAL4Hand.PU leads to significantly increased heart period, diastolic period, and fractional shortening whereas it leads to significantly decreased diastolic dysfunction index while it does not lead to any changes in systolic periods, systolic diameter or diastolic diameter when compared to control adults. Exercise training significantly enhances these hearth function phenotypes, except the systolic period phenotype.
Expression of Sirt1EP2300 under the control of Scer\GAL4Hand.PU significantly increases the climbing index of 5-week-old flies (but not of 1-, 3- or 7-week-old flies) compared to controls. Exercise increases the climbing index of 5- and 7-week-old (but not of 1-week-old or 3-week-old) flies that express Sirt1EP2300 under the control of Scer\GAL4Hand.PU and it extends the lifespan of flies that express Sirt1EP2300 under the control of Scer\GAL4Hand.PU compared to control adults.
Expression of Sirt1EP2300 under the control of Scer\GAL4sca.PU leads to a partial loss of the scutellar bristles.
Flies expressing Sir2EP2300 under the control of Scer\GAL4tub.PU show no increase in lifespan compared to the control carrying the Scer\GAL4tub.PU driver alone.
Overexpression of Sir2EP2300 under the control of Scer\GAL4elav-C155 significantly extends adult lifespan.
Sir2EP2300; Scer\GAL4αTub84B.PL females live on average 57% longer than controls and have a maximal life span (mean of 10% survival) of 19% longer than controls. For males of this genotype, the equivalent figures are 32% and 14% respectively. These lifespan increases are somewhat reduced by a low calorie diet. Similar increases in lifespan are seen when Scer\GAL4elav-C155 is used as a driver in stead of Scer\GAL4αTub84B.PL : female average lifespan up 52% and maximal lifespan up 19%; male average lifespan up 20% and maximal lifespan up 8%. Lifespan is not further increased in these flies by a low calorie diet. When Scer\GAL4arm.PS is used as the driver, there is only a 10-20% increase in average lifespan and no increase in maximal lifespan compared to controls. No increase in lifespan is seen when the driver is Scer\GAL4D42. The presence of 200μM RU486 in the food of Sir2EP2300; Scer\GAL4elav.Switch.PO females increases average lifespan by 5-12% and maximal lifespan by 9-16%.
Expression of Sir2EP2300 under the control of Scer\GAL4GMR.PF does not result in a rough eye phenotype.
Sirt1EP2300/Sir2[+] is an enhancer of visible | homeotic phenotype of E(z)32/E(z)61
Sirt1EP2300, Scer\GAL4GMR.PF is a non-enhancer of visible phenotype of Hsap\MAPTV337M.UAS, Scer\GAL4GMR.PF
Scer\GAL4ple.PF/Sirt1EP2300 is a suppressor of decreased cell number | adult stage phenotype of Pink1B9
Scer\GAL4ple.PF, Sirt1EP2300, foxo21, foxo[+] is a suppressor | partially of decreased cell number | adult stage phenotype of Pink1B9
Sirt1EP2300/Sir2[+] is a suppressor of long lived phenotype of HDAC1def24
Sirt1EP2300, Scer\GAL4elav-C155 is a non-suppressor of increased mortality phenotype of Hsap\HTTQ93.ex1.UAS, Scer\GAL4elav-C155
Sirt1EP2300, Scer\GAL4GMR.PF is a non-suppressor of visible phenotype of Hsap\MAPTV337M.UAS, Scer\GAL4GMR.PF
Sirt1EP2300, Scer\GAL4GMR.PU is an enhancer of retina phenotype of Hsap\HTT128Q.1-336.UAS, Scer\GAL4GMR.PU
Sirt1EP2300, Scer\GAL4GMR.PF is an enhancer of retina phenotype of Hsap\ATXN182.UAS, Scer\GAL4GMR.PF
Sirt1EP2300, Scer\GAL4GMR.PF is an enhancer of eye phenotype of Hsap\ATXN182Q.UAS, Scer\GAL4GMR.PF
Sirt1EP2300, Scer\GAL4GMR.PF is an enhancer of retina phenotype of Hsap\ATXN182Q.UAS, Scer\GAL4GMR.PF
Sirt1EP2300, Scer\GAL4GMR.PF is a non-enhancer of retina phenotype of Hsap\ATXN3tr.Q78.UAS.Tag:HA, Scer\GAL4GMR.PF
Sirt1EP2300, Scer\GAL430Y is a non-enhancer of adult brain phenotype of Hsap\ATXN3tr.Q78.UAS.Tag:HA, Scer\GAL430Y
Sirt1EP2300, Scer\GAL4ChAT.7.4 is a non-enhancer of adult brain phenotype of Hsap\ATXN182.UAS, Scer\GAL4ChAT.7.4
Sirt1EP2300/Scer\GAL4GMR.PF is a non-enhancer of retina phenotype of Scer\GAL4GMR.PF, Zzzz\CAG127Q.UAS.Tag:HA
Sirt1EP2300, Scer\GAL4GMR.PF is a non-enhancer of eye phenotype of Hsap\MAPTV337M.UAS, Scer\GAL4GMR.PF
Scer\GAL4ple.PF/Sirt1EP2300 is a suppressor of mitochondrion | adult stage phenotype of Pink1B9
Scer\GAL4ple.PF, Sirt1EP2300, foxo21, foxo[+] is a suppressor | partially of dorso-lateral dopaminergic neuron phenotype of Pink1B9
Scer\GAL4ple.PF, Sirt1EP2300, foxo21, foxo[+] is a suppressor | partially of mitochondrion | adult stage phenotype of Pink1B9
Scer\GAL4ple.PF/Sirt1EP2300 is a suppressor of dorso-lateral dopaminergic neuron phenotype of Pink1B9
Sirt1EP2300, Scer\GAL4GMR.PU is a suppressor of retina phenotype of Hsap\ATXN182Q.UAS, Scer\GAL4GMR.PU
Sirt1EP2300, Scer\GAL430Y is a non-suppressor of adult brain phenotype of Hsap\ATXN3tr.Q78.UAS.Tag:HA, Scer\GAL430Y
Sirt1EP2300, Scer\GAL4ChAT.7.4 is a non-suppressor of adult brain phenotype of Hsap\ATXN182.UAS, Scer\GAL4ChAT.7.4
Sirt1EP2300/Scer\GAL4GMR.PF is a non-suppressor of retina phenotype of Scer\GAL4GMR.PF, Zzzz\CAG127Q.UAS.Tag:HA
Sirt1EP2300, Scer\GAL4GMR.PF is a non-suppressor of retina phenotype of Hsap\ATXN3tr.Q78.UAS.Tag:HA, Scer\GAL4GMR.PF
Sirt1EP2300, Scer\GAL4GMR.PF is a non-suppressor of eye phenotype of Hsap\MAPTV337M.UAS, Scer\GAL4GMR.PF
Expression of Sirt1EP2300 driven by Scer\GAL4ple.PF suppresses the enlarged mitochondria in dopaminergic neurons and dopaminergic neuron loss (DL1 cluster) seen in Pink1B9/Y flies; additional presence of foxo21/+ partially suppresses the suppressive effect of Sirt1EP2300 driven by Scer\GAL4ple.PF on these phenotypes in Pink1B9/Y flies.
Expression of P{EP}Sir2EP2300 under the control of Scer\GAL4GMR.PU (which results in the simultaneous over-expression of both Sir2 and DnaJ-H) has no effect on eye morphology.
The increased average lifespan of HDAC1def24 homozygous flies is suppressed by Sirt1EP2300/+.
Expression of Sir2EP2300 enhances the retinal phenotype seen when Hsap\HTT128Q.1-336.Scer\UAS is expressed under the control of Scer\GAL4GMR.PU.
Expression of Sir2EP2300 enhances the retinal phenotype seen when Hsap\ATXN182Q.Scer\UAS is expressed under the control of Scer\GAL4GMR.PU.
Overexpression of Sir2EP2300 does not reduce the lethality associated with expression of Hsap\HTTQ93.ex1p.Scer\UAS (when both are driven by Scer\GAL4elav-C155). Addition of resveratrol to food fed to these 'double mutant' flies rescues the neuronal degeneration phenotype found in these flies, in a dose-dependent manner.
The rough eye phenotype caused by expression of Hsap\MAPTV337M.Scer\UAS under the control of Scer\GAL4GMR.PF is not modified if the flies are also carrying Sir2EP2300.