Drom, Dros, DIM 21, Drosomcycin, Drosomysin
Gene model reviewed during 5.45
There is only one protein coding transcript and one polypeptide associated with this gene
Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\Drs using the Feature Mapper tool.
Drs protein is induced in hemolymph after bacterial challenge. Time course studies with mass spectrometric analysis show that it is detectable within 6 hours of the challenge, increases substantially between 6hrs and 2 weeks, and is still detected 3 weeks after challenge. The disaccharide form of Drs protein disappears after 2 weeks.
GBrowse - Visual display of RNA-Seq signalsView Dmel\Drs 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.
Purified recombinant Drs shows antifungal activity to all seven tested fungal strains.
Identified as a gene with significant level of mRNA cycling as assessed by expression analysis using high density oligonucleotide arrays with probe generated from adult heads harvested over six time points over the course of a day. Shows alteration in expression in a Clk mutant background.
Identification: Encodes a protein that is induced by immune challenge.
Ecol\lacZDpt.PR adults are pricked with a sterile needle dipped in culture pellets of various living microorganisms (distinct bacterial strains, fungal spores or hyphae). Pricking results in a low but clearly detectable expression of all antimicrobial genes and these genes are induced above the background level by specific classes of microorganism. Wild type adults covered with spores of B.bassiana induce a strong and persistent expression of Drs.
Genes encoding antibacterial peptides are regulated in a manner distinct from that of Drs, encoding the antifungal peptide. The embryonic regulatory pathway, comprising the gene products between spz and cact (Tl, tub and pll) but not the genes acting upstream or downstream (ea and dl), is involved in the induction of the Drs gene in adults.
3D structural analysis of Drs, isolated from immune-challenged flies, shows a 44 residue antifungal peptide with four intramolecular disulfide bridges.
n contrast to the antibacterial peptides the antifungal peptide Drs remains inducible in a homozygous imd mutant background. These results point to the existance of two different pathways leading to the expression of two types of target genes, encoding either the antibacterial peptides or the antifungal peptide Drs.