General Information
Symbol
Dmel\IKKε
Species
D. melanogaster
Name
I-kappaB kinase ε
Annotation Symbol
CG2615
Feature Type
FlyBase ID
FBgn0086657
Gene Model Status
Stock Availability
Gene Snapshot
I-kappaB kinase ε (IKKε) is a serine-threonine kinase that targets the inhibitor of apoptosis Diap1 for degradation. It also negatively regulates protein kinase C and the dynein adaptor nuf. IKKε roles include specification of bristle cells, bristle cell morphogenesis, oocyte polarity, and dendrite development. [Date last reviewed: 2016-12-01]
Also Known As
ik2, DmIKKε, l(2)38Ea, 38D.31
Genomic Location
Cytogenetic map
Sequence location
2L:20,676,045..20,678,979 [+]
Recombination map
2-54
Sequence
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
GO Summary Ribbons
Families, Domains and Molecular Function
Gene Group Membership (FlyBase)
Protein Family (UniProt, Sequence Similarities)
-
Molecular Function (see GO section for details)
Summaries
Gene Group Membership
OTHER CONVENTIONAL PROTEIN KINASE DOMAIN KINASES -
The group of 'other conventional protein kinase domain kinases' consists of kinases with a conventional eukaryotic protein kinase domain that do not fit into any of the other major groups. This grouping is described in FBrf0201870.
Gene Model and Products
Number of Transcripts
2
Number of Unique Polypeptides
1

Please see the GBrowse view of Dmel\IKKε or the JBrowse view of Dmel\IKKε for information on other features

To submit a correction to a gene model please use the Contact FlyBase form

Protein Domains (via Pfam)
Isoform displayed:
Pfam protein domains
InterPro name
classification
start
end
Protein Domains (via SMART)
Isoform displayed:
SMART protein domains
InterPro name
classification
start
end
Comments on Gene Model
Gene model reviewed during 5.48
Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0081390
2461
720
FBtr0336824
2551
720
Additional Transcript Data and Comments
Reported size (kB)
Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
RefSeq ID
GenBank
FBpp0080920
82.0
720
6.88
FBpp0307790
82.0
720
6.88
Polypeptides with Identical Sequences

The group(s) of polypeptides indicated below share identical sequence to each other.

720 aa isoforms: IKKε-PB, IKKε-PC
Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Linkouts
Sequences Consistent with the Gene Model
Mapped Features

Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\IKKε using the Feature Mapper tool.

External Data
Crossreferences
Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
Linkouts
Gene Ontology (23 terms)
Molecular Function (5 terms)
Terms Based on Experimental Evidence (3 terms)
CV Term
Evidence
References
inferred from physical interaction with UniProtKB:Q9V9Y9
(assigned by UniProt )
inferred from physical interaction with FLYBASE:Diap1; FB:FBgn0260635
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
inferred from electronic annotation with InterPro:IPR000719, InterPro:IPR017441
(assigned by InterPro )
non-traceable author statement
inferred from biological aspect of ancestor with PANTHER:PTN001491808
(assigned by GO_Central )
Biological Process (16 terms)
Terms Based on Experimental Evidence (15 terms)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN001491808
(assigned by GO_Central )
non-traceable author statement
Cellular Component (2 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
inferred from direct assay
inferred from direct assay
Terms Based on Predictions or Assertions (0 terms)
Expression Data
Transcript Expression
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Evidence
References
inferred from direct assay
inferred from direct assay
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

GBrowse - Visual display of RNA-Seq signals

View Dmel\IKKε in GBrowse 2
RNA-Seq by Region - Search RNA-Seq expression levels by exon or genomic region
Reference
See Gelbart and Emmert, 2013 for analysis details and data files for all genes.
Developmental Proteome: Life Cycle
Developmental Proteome: Embryogenesis
External Data and Images
Linkouts
BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
FLIGHT - Cell culture data for RNAi and other high-throughput technologies
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
Flygut - An atlas of the Drosophila adult midgut
Images
Alleles, Insertions, Transgenic Constructs and Phenotypes
Classical and Insertion Alleles ( 9 )
For All Classical and Insertion Alleles Show
 
Allele of IKKε
Class
Mutagen
Associated Insertion
Stocks
Known lesion
Other relevant insertions
Transgenic Constructs ( 20 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of IKKε
Allele of IKKε
Mutagen
Associated Transgenic Construct
Stocks
Transgenic constructs containing regulatory region of IKKε
Deletions and Duplications ( 14 )
Summary of Phenotypes
For more details about a specific phenotype click on the relevant allele symbol.
Lethality
Allele
Sterility
Allele
Other Phenotypes
Allele
Phenotype manifest in
Allele
dendrite & dorsal multidendritic neuron ddaC | larval stage | conditional - heat sensitive, with Scer\GAL4ppk.PG, Scer\GAL80ts.αTub84B
dendrite & dorsal multidendritic neuron ddaC | pupal stage, with Scer\GAL4ppk.PG
dendrite & dorsal multidendritic neuron ddaC | pupal stage | somatic clone
egg chamber & microtubule | germ-line clone
microtubule & dorsal multidendritic neuron ddaC | pupal stage, with Scer\GAL4ppk.PG
S2 cell-line & filamentous actin, with Scer\GAL4Act5C.PI
terminal tracheal cell & filamentous actin
terminal tracheal cell & filopodium
Orthologs
Human Orthologs (via DIOPT v7.1)
Homo sapiens (Human) (4)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
12 of 15
Yes
Yes
 
9 of 15
No
Yes
2 of 15
No
No
2 of 15
No
No
Model Organism Orthologs (via DIOPT v7.1)
Mus musculus (laboratory mouse) (4)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
12 of 15
Yes
Yes
9 of 15
No
Yes
2 of 15
No
No
2 of 15
No
No
Rattus norvegicus (Norway rat) (4)
10 of 13
Yes
Yes
9 of 13
No
Yes
2 of 13
No
No
2 of 13
No
No
Xenopus tropicalis (Western clawed frog) (4)
6 of 12
Yes
Yes
2 of 12
No
No
2 of 12
No
No
1 of 12
No
Yes
Danio rerio (Zebrafish) (4)
10 of 15
Yes
Yes
9 of 15
No
Yes
2 of 15
No
No
2 of 15
No
No
Caenorhabditis elegans (Nematode, roundworm) (2)
4 of 15
Yes
Yes
3 of 15
No
Yes
Arabidopsis thaliana (thale-cress) (1)
1 of 9
Yes
Yes
Saccharomyces cerevisiae (Brewer's yeast) (1)
1 of 15
Yes
No
Schizosaccharomyces pombe (Fission yeast) (0)
No orthologs reported.
Orthologs in Drosophila Species (via OrthoDB v9.1) ( EOG0919035X )
Organism
Common Name
Gene
AAA Syntenic Ortholog
Multiple Dmel Genes in this Orthologous Group
Drosophila melanogaster
fruit fly
Drosophila suzukii
Spotted wing Drosophila
Drosophila simulans
Drosophila sechellia
Drosophila erecta
Drosophila yakuba
Drosophila ananassae
Drosophila pseudoobscura pseudoobscura
Drosophila persimilis
Drosophila willistoni
Drosophila virilis
Drosophila mojavensis
Drosophila grimshawi
Orthologs in non-Drosophila Dipterans (via OrthoDB v9.1) ( EOG091501U0 )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Musca domestica
House fly
Glossina morsitans
Tsetse fly
Lucilia cuprina
Australian sheep blowfly
Aedes aegypti
Yellow fever mosquito
Anopheles darlingi
American malaria mosquito
Anopheles gambiae
Malaria mosquito
Culex quinquefasciatus
Southern house mosquito
Orthologs in non-Dipteran Insects (via OrthoDB v9.1) ( EOG090W01FE )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Bombyx mori
Silkmoth
Danaus plexippus
Monarch butterfly
Heliconius melpomene
Postman butterfly
Apis florea
Little honeybee
Apis mellifera
Western honey bee
Bombus impatiens
Common eastern bumble bee
Bombus terrestris
Buff-tailed bumblebee
Linepithema humile
Argentine ant
Megachile rotundata
Alfalfa leafcutting bee
Nasonia vitripennis
Parasitic wasp
Dendroctonus ponderosae
Mountain pine beetle
Dendroctonus ponderosae
Mountain pine beetle
Tribolium castaneum
Red flour beetle
Tribolium castaneum
Red flour beetle
Pediculus humanus
Human body louse
Cimex lectularius
Bed bug
Acyrthosiphon pisum
Pea aphid
Zootermopsis nevadensis
Nevada dampwood termite
Orthologs in non-Insect Arthropods (via OrthoDB v9.1) ( EOG090X01SN )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Strigamia maritima
European centipede
Ixodes scapularis
Black-legged tick
Stegodyphus mimosarum
African social velvet spider
Tetranychus urticae
Two-spotted spider mite
Daphnia pulex
Water flea
Orthologs in non-Arthropod Metazoa (via OrthoDB v9.1) ( EOG091G0354 )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Strongylocentrotus purpuratus
Purple sea urchin
Strongylocentrotus purpuratus
Purple sea urchin
Strongylocentrotus purpuratus
Purple sea urchin
Strongylocentrotus purpuratus
Purple sea urchin
Ciona intestinalis
Vase tunicate
Gallus gallus
Domestic chicken
Gallus gallus
Domestic chicken
Human Disease Model Data
FlyBase Human Disease Model Reports
Alleles Reported to Model Human Disease (Disease Ontology)
Download
Models ( 0 )
Allele
Disease
Evidence
References
Interactions ( 0 )
Allele
Disease
Interaction
References
Comments ( 0 )
 
Human Orthologs (via DIOPT v7.1)
Note that ortholog calls supported by only 1 or 2 algorithms (DIOPT score < 3) are not shown.
Functional Complementation Data
Functional complementation data is computed by FlyBase using a combination of the orthology data obtained from DIOPT and OrthoDB and the allele-level genetic interaction data curated from the literature.
Interactions
Summary of Physical Interactions
Summary of Genetic Interactions
esyN Network Diagram
esyN Network Key:
Suppression
Enhancement

Please look at the allele data for full details of the genetic interactions
Starting gene(s)
Interaction type
Interacting gene(s)
Reference
Starting gene(s)
Interaction type
Interacting gene(s)
Reference
External Data
Linkouts
BioGRID - A database of protein and genetic interactions.
DroID - A comprehensive database of gene and protein interactions.
InterologFinder - Protein-protein interactions (PPI) from both known and predicted PPI data sets.
Pathways
Gene Group - Pathway Membership (FlyBase)
External Data
Linkouts
KEGG Pathways - Wiring diagrams of molecular interactions, reactions and relations.
Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
SignaLink - A signaling pathway resource with multi-layered regulatory networks.
Genomic Location and Detailed Mapping Data
Chromosome (arm)
2L
Recombination map
2-54
Cytogenetic map
Sequence location
2L:20,676,045..20,678,979 [+]
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
38D4-38D5
Limits computationally determined from genome sequence between P{lacW}k02501&P{lacW}k14810 and P{PZ}Hr3802306&P{PZ}dia1
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
Experimentally Determined Recombination Data
Left of (cM)
Right of (cM)
Notes
Stocks and Reagents
Stocks (13)
Genomic Clones (21)
cDNA Clones (26)
 

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.

cDNA clones, fully sequences
BDGP DGC clones
Other clones
Drosophila Genomics Resource Center cDNA clones

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.

cDNA Clones, End Sequenced (ESTs)
BDGP DGC clones
RNAi and Array Information
Linkouts
DRSC - Results frm RNAi screens
GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
Antibody Information
Laboratory Generated Antibodies
 
polyclonal
Commercially Available Antibodies
 
Other Information
Relationship to Other Genes
Source for database identify of
Source for identity of: ik2 CG2615
Source for identity of: IKKε ik2
Source for database merge of
Source for merge of: ik2 l(2)38Ea
Additional comments
Renamed from 'ik2' to 'IKKε' to be more informative/consistent, and to represent usage in FBrf0193419, FBrf0194448 and FBrf0212985 etc.
Other Comments
ik2 protein is locally activated (by phosphorylation at residue Ser175) at the tip of growing mechanosensory bristles and controls the rapid shuttling of recycling endosomes. ik2 is also involved in actin bundle organisation. These two processes (recycling endosome dynamics and actin bundle organisation) appear to be independently regulated by ik2.
Mutations in ik2 affect polarized bristle microtubule formation.
ik2 is required for dendritic severing during dendrite pruning of ddaC neurons in the pupa.
ik2 acts upstream of the Tl-dl pathway during oogenesis.
Both the actin cytoskeleton and the anchoring of microtubule minus-ends are disrupted in ik2 mutants.
When dsRNA constructs are made and transiently transfected into S2 cells in RNAi experiments, a whole range of mitotic abnormalities and spindle abnormalities are seen.
dsRNA made from templates generated with primers directed against this gene tested in RNAi screen for effects on Kc167 and S2R+ cell morphology.
Origin and Etymology
Discoverer
Etymology
Identification
External Crossreferences and Linkouts ( 47 )
Crossreferences
NCBI Gene - Gene integrates information from a wide range of species. A record may include nomenclature, Reference Sequences (RefSeqs), maps, pathways, variations, phenotypes, and links to genome-, phenotype-, and locus-specific resources worldwide.
GenBank Nucleotide - A collection of sequences from several sources, including GenBank, RefSeq, TPA, and PDB.
GenBank Protein - A collection of sequences from several sources, including translations from annotated coding regions in GenBank, RefSeq and TPA, as well as records from SwissProt, PIR, PRF, and PDB.
RefSeq - A comprehensive, integrated, non-redundant, well-annotated set of reference sequences including genomic, transcript, and protein.
UniProt/TrEMBL - Automatically annotated and unreviewed records of protein sequence and functional information
Other crossreferences
BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
KEGG Pathways - Wiring diagrams of molecular interactions, reactions and relations.
Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
Linkouts
BioGRID - A database of protein and genetic interactions.
Drosophila Genomics Resource Center - Drosophila Genomics Resource Center cDNA clones
DroID - A comprehensive database of gene and protein interactions.
DRSC - Results frm RNAi screens
Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
FLIGHT - Cell culture data for RNAi and other high-throughput technologies
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
Flygut - An atlas of the Drosophila adult midgut
FlyMine - An integrated database for Drosophila genomics
GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
InterologFinder - Protein-protein interactions (PPI) from both known and predicted PPI data sets.
KEGG Genes - Molecular building blocks of life in the genomic space.
modMine - A data warehouse for the modENCODE project
SignaLink - A signaling pathway resource with multi-layered regulatory networks.
Synonyms and Secondary IDs (26)
Reported As
Symbol Synonym
Dik2
IKKepsilon
Name Synonyms
I-kappaB kinase ε
IKK-related kinase
IkappaB kinase-like 2
IκB kinase-like 2
ik2
lethal (2) 38Ea
Secondary FlyBase IDs
  • FBgn0025164
  • FBgn0028633
  • FBgn0043071
Datasets (0)
Study focus (0)
Experimental Role
Project
Project Type
Title
References (97)