G to A nucleotide substitution at the first base of the intron (this corresponds to 1162bp downstream of the ATG start codon). This change is thought to result in read-through into the intron until a stop codon is encountered 1191bp downstream of the ATG start codon, generating a 389 amino acid residue protein. (Revision of data reported in FBrf0230407).
Transcript levels are reduced compared to wild type; no band representing either a wild type or truncated translated product is detected on a Western blot.
G21181193A
G to A nucleotide change in the first base of the Mcm10 intron appears to result in read-through of the intron and early translation termination 1192 bp downstream of the ATG.
semi-sterile | female (with Df(2L)Exel6047)
viable (with Df(2L)Exel6047)
ovary (with Df(2L)Exel6047)
Mcm10SJ/Df(2L)Exel6047 are viable and do not show increased adult mortality rates compared to heterozygote controls. Mcm10SJ/Df(2L)Exel6047 have reduced female fecundity.
Percentage of Mcm10SJ/Df(2L)Exel6047 embryos hatching is increased with wild type maternal (and slightly by paternal) allele donation.
Mcm10SJ/Df(2L)Exel6047 are seen in early embryonic cell cycle stages significantly more than wild type, mutant pre-gastrulating embryos have chromosome fragmentation, females show reductions in egg deposition compared to wild type and frequently (with incomplete penetrance and sometimes asymmetric) display small ovaries largely devoid of vitellogenic follicles. In contrast to wild type ovarioles, Mcm10SJ/Df(2L)Exel6047 display long thin strings of somatic cells.
Df(2L)Exel6047/Mcm10SJ is partially rescued by Scer\GAL4VP16.nanos.UTR/Mcm10UAS.cRa
Mcm10Scer\UAS.cRa driven by Scer\GAL4nos.UTR.T:Hsim\VP16 partially rescues reduced fecundity, percentage of embryos hatching and early embryonic cell cycle deficiencies in Mcm10SJ/Df(2L)Exel6047 female flies.