The mutated residue C98 is perfectly conserved in homologs from S. cerevisiae to H. sapiens, in a region of the protein that is almost perfectly conserved, and that is thought to be required for deacetylase activity. Lesions in HDAC1303 and HDAC1328, which were independently isolated, are identical.
Amino acid replacement: C98Y.
G4627747A
C98Y | HDAC1-PA
C98Y
Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.
Homozygous single-cell DL1 projection neuron clones mistarget their dendrites towards dorsomedial (82% of clones) or ventromedial regions (14% of clones) of the antennal lobe (normally the dendrites of this projection neuron project to the dorsolateral glomerulus DL1).
Rpd3303/+ flies have the normal number of dorsocentral bristles.
One copy of Rpd3303 strongly suppresses position effect variegation (PEV) at the w locus caused by In(1)wm4.
One copy of Rpd3303 weakly suppresses the telomeric position effect (TPE) in stocks carrying a variegating P{hsp26-pt-T}39C-5 insertion at the telomere of the left arm of chromosome two.
Strong suppressor of PEV in In(1)wm4. Raises the pigment levels of In(1)wm4 eyes from 5-15% of wild type levels to 60-90% of wild type levels. When raised under carefully maintained culture conditions transheterozygotes of the genotype HDAC104556/HDAC1303 adult males eclose at 40% the expected rate and females at 30% the expected rate. Adults are short lived and females produce few eggs, apparently unfertilised. Phenotypes include strong suppression of In(1)wm4 variegation, severely notched wings, small, malformed, sometimes curved or duplicated bristles, allulae that are larger than normal, and a reduction in the number of sex combs. Recessive lethality acts equally in the third larval instar or during pupation. Shows a dominant semi-lethal effect on males: viability 71% of expected.
HDAC1303/HDAC1[+] is an enhancer of abnormal circadian rhythm | adult stage | dominant phenotype of CoRestMI08173
HDAC1303 is a suppressor of visible phenotype of Scer\GAL4lz-gal4, sensUAS.cNa
Df(3R)sbd45/+, HDAC1303 has visible | dominant phenotype
HDAC1303/Rpd3[+] is an enhancer of dorsocentral bristle | increased number phenotype of pnrD1
HDAC1303 is a suppressor of eye phenotype of Scer\GAL4lz-gal4, sensUAS.cNa
Df(3R)sbd45/+, HDAC1303 has adult abdominal segment 6 phenotype
Df(3R)sbd45/+, HDAC1303 has abdominal sternite bristle | ectopic phenotype
The disorganised eye phenotype caused by expression of sensScer\UAS.cNa under the control of Scer\GAL4lz-gal4 is suppressed by Rpd3303.
96% of Rpd3303/Df(3R)sbd45 transheterozygous males show transformation of A6 to A5, as judged by the presence of at least one bristle on the sixth sternite.
HDAC1303 is rescued by HDAC1UAS.Tag:V5/Scer\GAL4GH146
Expression of Rpd3Scer\UAS.T:SV5\V5 under the control of Scer\GAL4GH146 in single-cell DL1 projection neuron clones which are mutant for Rpd3303 significantly rescues the dendrite mistargeting defects seen in these clones.