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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) encodes a serine-threonine kinase that targets the inhibitor of apoptosis encoded by Diap1 for degradation. It also negatively regulates protein kinase C and the dynein adaptor encoded nuf. The product of IKKε contributes to the specification of bristle cells, bristle cell morphogenesis, oocyte polarity, and dendrite development. [Date last reviewed: 2019-03-07]
Also Known As
ik2, DmIKKε, l(2)38Ea, 38D.31, IκB kinase-like 2
Key Links
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.
Function
GO Summary Ribbons
Protein Family (UniProt)
-
Summaries
Gene Group (FlyBase)
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.
Summary (Interactive Fly)
IKK-related kinase - a regulator of caspase activation in a nonapoptotic context - promotes degradation of DIAP1 (Thread) through direct phosphorylation - required for proper sensory organ precursor development - acts on the cytoskeleton to regulate egg DV and AP polarity
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 (21 terms)
Molecular Function (4 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 (2 terms)
CV Term
Evidence
References
inferred from electronic annotation with InterPro:IPR000719, InterPro:IPR017441
(assigned by InterPro )
inferred from biological aspect of ancestor with PANTHER:PTN001491808
(assigned by GO_Central )
Biological Process (15 terms)
Terms Based on Experimental Evidence (15 terms)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN001491808
(assigned by GO_Central )
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 (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN001491808
(assigned by GO_Central )
Expression Data
Expression Summary Ribbons
Colored tiles in ribbon indicate that expression data has been curated by FlyBase for that anatomical location. Colorless tiles indicate that there is no curated data for that location.
For complete stage-specific expression data, view the modENCODE Development RNA-Seq section under High-Throughput Expression below.
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, and Transgenic Constructs
Classical and Insertion Alleles ( 9 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 21 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of IKKε
Transgenic constructs containing regulatory region of IKKε
Deletions and Duplications ( 15 )
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 records found.
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
Paralogs
Paralogs (via DIOPT v7.1)
Drosophila melanogaster (Fruit fly) (3)
3 of 10
1 of 10
1 of 10
Human Disease Associations
FlyBase Human Disease Model Reports
    Disease Model Summary Ribbon
    Disease Ontology (DO) Annotations
    Models Based on Experimental Evidence ( 0 )
    Allele
    Disease
    Evidence
    References
    Potential Models Based on Orthology ( 1 )
    Human Ortholog
    Disease
    Evidence
    References
    Modifiers Based on Experimental Evidence ( 0 )
    Allele
    Disease
    Interaction
    References
    Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
     
    Disease Associations of Human Orthologs (via DIOPT v7.1 and OMIM)
    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.
    MIST (genetic) - An integrated Molecular Interaction Database
    MIST (protein-protein) - An integrated Molecular Interaction Database
    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
    38D4-38E2
    Limits computationally determined from genome sequence between P{lacW}k02501&P{lacW}k14810 and P{PZ}Hr3802306&P{PZ}dia1; Left limit from inclusion within Df(2L)DS9 (FBrf0102956) Right limit from non-inclusion within Df(2L)DS6 (FBrf0102956)
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (14)
    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 ( 53 )
    Sequence 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
    Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
    Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
    Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
    Flygut - An atlas of the Drosophila adult midgut
    GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
    iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
    KEGG Genes - Molecular building blocks of life in the genomic space.
    KEGG Pathways - Wiring diagrams of molecular interactions, reactions and relations.
    modMine - A data warehouse for the modENCODE project
    Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
    SignaLink - A signaling pathway resource with multi-layered regulatory networks.
    Linkouts
    BioGRID - A database of protein and genetic interactions.
    DroID - A comprehensive database of gene and protein interactions.
    DRSC - Results frm RNAi screens
    FLIGHT - Cell culture data for RNAi and other high-throughput technologies
    FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
    FlyMine - An integrated database for Drosophila genomics
    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 Pathways - Wiring diagrams of molecular interactions, reactions and relations.
    MIST (genetic) - An integrated Molecular Interaction Database
    MIST (protein-protein) - An integrated Molecular Interaction Database
    Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
    Synonyms and Secondary IDs (26)
    Reported As
    Symbol Synonym
    Dik2
    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 (104)