Amino acid replacement: R110H. Missense mutation in the third exon substituting an A for G. This change occurs within a short repeat of amino acid sequence of acidic-Arg-Thr-X-Asn.
G23597279A
G?A
R110H | apt-PA; R116H | apt-PB; R110H | apt-PC; R110H | apt-PD; R96H | apt-PE; R126H | apt-PF
R110H
apt167/+ mutant adults do not exhibit any obvious wing defects.
In ~80% of homozygous aptKG05830/apt167 mutant stage 10 egg chambers, 1-7 additional invasive "stretched border cells" are seen, often dramatically stretched out and trailing behind the main cluster.
Egg chambers containing homozygous apt167 mutant clones in stage 10 egg chambers contain 1-7 additional invasive "stretched border cells", often dramatically stretched out and trailing behind the main cluster. This phenotype is observed even if only a few anterior follicle cells are mutant, and no stretched border cells are seen in wild type cells. No phenotypes are seen when in egg chambers where the border cells are the only mutant cells.
Females with homozygous germline clones have phenotypically wild-type ovaries but a small fraction of the eggs laid develop into embryos with head defects.
Homozygotes die as late embryos or early larvae and show a similar phenotype to apt41 with respect to heart development and function.
Homozygous embryos have severe defects in structures derived from the gnathal segments. The lateral bars of the H-piece and hypostomal sclerites are missing and the lateralgraten are truncated. The ectostomal sclerite and the cross bar of the H-piece are unaffected. The heads are open anteriorly and the dorsal pouch is reduced, replaced by sclerotic rubble. The dorsal bridge is missing or broken.
aptKG05830/apt167 has abnormal cell migration | adult stage phenotype, suppressible | partially by Stat92E[+]/Stat92E06346
apt167/apt[+] is an enhancer of abnormal size phenotype of hhbar3
aptKG05830/apt167 has border follicle cell | oogenesis stage S10 phenotype, suppressible | partially by Stat92E[+]/Stat92E06346
aptKG05830/apt167 has egg chamber | oogenesis stage S10 phenotype, suppressible | partially by Stat92E[+]/Stat92E06346
Socs36E178, apt167/apt[+] has border follicle cell phenotype
Socs36EEY06665/Socs36E178, aptKG05830/apt167 has border follicle cell phenotype
apt167, bru1QB has embryonic head phenotype
apt167, bru1QB, nanosL7 has embryonic head phenotype
Egg chambers of Socs36E178/+, apt167/+ double heterozygous females contain additional invasive cells that are not associated with the border cell cluster: 55% of the double heterozygous egg chambers contain more than one additional invasive cell compared to 10% and 15% respectively for each single heterozygote.
In 44% of Socs36E178 aptKG05830/Socs36EEY06665 apt167 stage 10 egg chambers the border cells are tethered to the anterior end of the egg chamber by non-cluster associated invasive cells. This inability to detach from neighbouring follicle cells results in a migration delay in 31% of the stage 10 double mutant egg chambers.
One copy of Stat92E06346 partially suppresses the invasive border cell phenotype seen in aptKG05830/apt167 mutant stage 10 egg chambers. A reduction is seen in both the frequency of affected egg chambers and the number of cells. On average 26% of egg chambers contain "stretched border cells" compared to ~80% in aptKG05830/apt167 alone. The border cell cluster also detaches much more easily from the anterior end of the egg chamber.
Embryos derived from a cross of wild-type males to females heterozygous for aretQB and also heterozygous for apt167 occasionally have head defects (these defects are not seen in embryos derived from females singly heterozygous for aretQB or apt167). This phenotype is largely suppressed if the females are also heterozygous for nosL7.
One of three alleles isolated in this screen.