dec-1, defective chorion 1, fs(1)384, fs(1)1501, dec1
Low-frequency RNA-Seq exon junction(s) not annotated.
Gene model reviewed during 5.52
Gene model reviewed during 5.42
Gene model reviewed during 5.41
Gene model reviewed during 5.56
Multiphase exon postulated: exon reading frame differs in alternative transcripts.
None of the polypeptides share 100% sequence identity.
1589, 1123, 950 (aa); 177, 125, 106 (kD predicted)
One of a couple of products generated by alternative splicing.
In D. melanogaster four variant dec-1 protein
forms have been found, differing by 2-3kD each. The variation is due to
deletions of 1,2, or 3 units of a 5-time repeated sequence (78bp long).
Multiple dec-1 proteins are made from alternatively spliced transcripts. The distribution of the various dec-1 protein products was studied in dec-1 mutants. Evidence suggests that the 106kD product and its derivatives are not sufficient for the formation of a functional eggshell. Other products such as the 125kD and 177kD products are required.
Multiple dec-1 proteins are made from alternatively spliced transcripts. dec-1 protein product diversity is also accomplished by protein processing. The 950aa dec-1 product is processed at a site determined in this study, to yield an 80kD C-terminal product (s80) and a 26kD N-terminal product. The 80kD product is further processed to give rise to a 60kD peptide (s60). The distribution of the various dec-1 protein products was studied in dec-1 mutants. Evidence suggests that the 106kD product and its derivatives are not sufficient for the formation of a functional eggshell. Other products such as the 125kD and 177kD products are required.
Proteolytic cleavage of isoform FC106 generates 2 further products, S80 and S60.
Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\dec using the Feature Mapper tool.
GBrowse - Visual display of RNA-Seq signalsView Dmel\dec in GBrowse 2
Please Note This section lists cDNAs and ESTs that fall within the genomic extent of the gene model, which may include cDNAs and ESTs of genes within introns, or of overlapping genes. Please see GBrowse for alignment of the cDNAs and ESTs to the gene model.
For each fully sequenced cDNA the DGRC maintains various forms of the cDNA (e.g tagged or untagged) in several different host vectors for subsequent cloning and expression in Drosophila and Drosophila cell lines.
The fc177 cleaved derivative of dec-1 is necessary to prevent ectopic aggregation of the endochorion during eggshell assembly.
The diverse distributions of the various dec-1 derivatives suggest that they are functionally distinct and likely to play different roles in the assembly and stabilisation of the mature eggshell.
A follicular cell marker system that yields a visible phenotype within the mature egg shell allows direct comparison of a clone and its effect on the dorsal ventral pattern of the embryos.
dec-1 encodes multiple products that are post-translationally cleaved. The post-translational cleavage is developmentally regulated. Inter- or intramolecular interactions dictated by the C-terminal ends of the molecules determine the pathway followed by each dec-1 protein.
dec-1 encodes multiple products that are post-translationally cleaved and that are necessary for proper egg shell assembly.
Mature egg shell shows lack of organization within the endochorion and accumulation of electron dense material in the vitelline membrane of stage-14 egg chambers. No abnormalities detected in stage-10 oocytes.
Mutations in dec-1 disrupt chorion gene amplification.
Three protein products of gene detected; the primary translation product of 130kD found in stage-10 follicles; this appears to be quickly processed into an 85kD product, which is in turn processed into a 67kD protein in stage 13 and 14 egg shells.
Three protein products of gene detected; these products measured as 92, 82 and 76kD, respectively. All three proteins absent in dec-1 mutants, and they vary coordinately in molecular weight in natural variant alleles.