Sgs-7, group III
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Gene model reviewed during 5.43
Low-frequency RNA-Seq exon junction(s) not annotated.
Gene model reviewed during 5.45
0.32 (northern blot)
There is only one protein coding transcript and one polypeptide associated with this gene
74, 51 (aa)
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GBrowse - Visual display of RNA-Seq signals
View Dmel\Sgs7 in GBrowse 23-36
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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.
Source for merge of: Sgs7 CG18087
Gene expression is unaffected in Eip74EFneo24 mutants but transcripts are barely detectable in Eip74EFDL-1 mutants.
Ecdysteroid-regulated gene.
Sgs7 encodes the 5481kD salivary-gland glue protein. One of a group of seven genes encoding proteins that are components of the secretion produced by the larval salivary glands during the third instar for the purpose of attaching the larva to the substrate preparative to pupariation. The protein contains, in common with those encoded by Sgs3 and Sgs8, a 23-residue amino-terminal signal peptide and a carboxy-terminal region of about 50 amino acids that shows considerable homology with those encoded by Sgs3 and Sgs8; it is not glycosylated. Expressed coordinately with Sgs3 and Sgs8.
Cessation of Sgs7 transcription and puff regression are ecdysterone-dependent.
Initiation of transcription of Sgs7, but not of intermolt-puff formation seems to depend on the presence of suitable levels of ecdysterone in early third instar larvae.
Identification: During a molecular analysis of the 68C puff locus.
Synthesis of the glue proteins begins about 106 h after egg deposition and ceases abruptly within a few minutes after the glue is released 14 h later.
Initiation of transcription of Sgs7 is coincident with the formation of the intermolt puffs in early to mid third instar.