Nc, Nedd2-like caspase, caspase-9
cysteine protease - a functional homolog of CED-3/caspase-9 - initiator caspase - involved in programmed cell death - activated by interaction with the Apaf-containing apoptosome
Please see the JBrowse view of Dmel\Dronc for information on other features
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AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Some regions with low pLDDT may be unstructured in isolation.
Low-frequency RNA-Seq exon junction(s) not annotated.
Gene model reviewed during 5.45
2.2 (northern blot)
There is only one protein coding transcript and one polypeptide associated with this gene
450 (aa); 50 (kD observed)
Interacts (via residues 114-125) with Diap1 (via BIR 2 domain); binding blocks Dronc-mediated cell death (PubMed:10675329, PubMed:10984473, PubMed:14517550). Can form a stable complex with Drice (PubMed:10675329, PubMed:14517550). Rpr, hid and grim can out-compete Dronc for binding Diap1, therefore removing Diap1-mediated ubiquitination (PubMed:10675329, PubMed:14517550). Interacts (via CARD domain) with Dark (via Dark CARD and WD domains); the interaction stimulates Dark oligomerization to form the apoptosome and brings pairs of Dronc molecules together on the apoptosome to facilitate their dimerization and activation by autocatalytic cleavage (PubMed:21220123, PubMed:25644603, PubMed:38381783). Binding to Dark stimulates apoptosome assembly (PubMed:25644603, PubMed:38381783). After autocatalytic cleavage the Dronc caspase domain dissociates from the apoptosome but the CARD domain remains associated (PubMed:25644603).
Ubiquitinated by Diap1, leading to its subsequent degradation.
Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\Dronc using the Feature Mapper tool.
The testis specificity index was calculated from modENCODE tissue expression data by Vedelek et al., 2018 to indicate the degree of testis enrichment compared to other tissues. Scores range from -2.52 (underrepresented) to 5.2 (very high testis bias).
Comment: maternally deposited
Dronc transcripts are detected in all developmental stages on northern blots. Dronc transcripts are ubiquitously distributed in early embryos and are seen at reduced levels at later stages. High Dronc transcript levels are observed in salivary glands and midgut in late third instar larvae but not second instar larvae. Low levels of Dronc transcripts are observed throughout third instar eye discs and brain lobes. Dronc expression is also observed in egg chambers. Dronc expression is induced by ecdysone.
Comment: reference states 12-14h APF
Comment: reference states 12-14h APF
Expression of Dronc protein is observed in fully elongated spermatid cysts, and is depleted from individualized spermatozoa.
JBrowse - Visual display of RNA-Seq signals
View Dmel\Dronc in JBrowse3-32
3-24.4
Please Note FlyBase no longer curates genomic clone accessions so this list may not be complete
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 JBrowse 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.
Nc activity has a negative effect on border follicle cell migration.
dsRNA made from templates generated with primers directed against this gene tested in RNAi screen for effects on Kc167 and S2R+ cell morphology.
Area matching Drosophila EST AA540020.
Nc cleaves tetrapeptide and protein substrates carboxy-terminal to glutamate as well as aspartate residues.
Loss of Nc function in early embryos results in a dramatic decrease in cell death in the embryos.
Source for merge of: Nc anon- EST:GressD6
Source for merge of: Nc anon-WO0118547.313
Source for merge of Nc anon- EST:GressD6 was sequence comparison ( date:030707 ).
Source for merge of Nc anon-WO0118547.313 was sequence comparison ( date:051113 ).
Source for identity of: Nc CG8091
Source for identity of: Dronc Nc
Changed from 'Nc' to 'Dronc' to reflect common usage in the literature.