FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Dmel\IKKβ
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General Information
Symbol
Dmel\IKKβ
Species
D. melanogaster
Name
I-kappaB kinase β
Annotation Symbol
CG4201
Feature Type
FlyBase ID
FBgn0024222
Gene Model Status
Stock Availability
Enzyme Name (EC)
IkappaB kinase (2.7.11.10)
Gene Summary
I-kappaB kinase β (IKKβ) encodes a a component of the IκB Kinase (IKK) complex together with the product of key. IKK complex participates in the activation of the transcription factor encoded by Rel in the immune deficiency pathway. This pathway regulates the antibacterial response and other less characterized cellular processes. [Date last reviewed: 2019-03-07] (FlyBase Gene Snapshot)
Also Known As

ird5, DmIKKβ, IKK, IKK-β, ird-5

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
3-58
RefSeq locus
NT_033777 REGION:16046347..16049421
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (19 terms)
Molecular Function (5 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
inferred from physical interaction with UniProtKB:Q9GYV5
inferred from physical interaction with UniProtKB:Q03017
Terms Based on Predictions or Assertions (4 terms)
CV Term
Evidence
References
enables ATP binding
inferred from electronic annotation with InterPro:IPR000719
inferred from biological aspect of ancestor with PANTHER:PTN000540281
Biological Process (12 terms)
Terms Based on Experimental Evidence (10 terms)
CV Term
Evidence
References
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from direct assay
inferred from direct assay
inferred from mutant phenotype
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
Cellular Component (2 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
located_in cytoplasm
inferred from direct assay
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
is_active_in cytoplasm
inferred from biological aspect of ancestor with PANTHER:PTN001491808
inferred from biological aspect of ancestor with PANTHER:PTN000540281
Protein Family (UniProt)
Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. I-kappa-B kinase subfamily. (Q9VEZ5)
Catalytic Activity (EC/Rhea)
protein serine/threonine kinase activity
IkappaB kinase activity
L-seryl-[I-kappa-B protein] + ATP = O-phospho-L-seryl-[I-kappa-B protein] + ADP + H(+) (2.7.11.10)
RHEA 19073:
Summaries
Gene Snapshot
I-kappaB kinase β (IKKβ) encodes a a component of the IκB Kinase (IKK) complex together with the product of key. IKK complex participates in the activation of the transcription factor encoded by Rel in the immune deficiency pathway. This pathway regulates the antibacterial response and other less characterized cellular processes. [Date last reviewed: 2019-03-07]
Gene Group (FlyBase)
UNCLASSIFIED CONVENTIONAL PROTEIN KINASE DOMAIN KINASES -
This group comprises conventional protein kinase domain kinases that do not classify under other groups in FlyBase.
Pathway (FlyBase)
IMD SIGNALING PATHWAY CORE COMPONENTS -
The immune deficiency (Imd) pathway primarily mediates the humoral immune response to Gram-negative bacteria. Activation of the Imd pathway by diaminopimelic acid-type peptidoglycan initiates a signaling cascade that ultimately results in the release of the NFκB-like factor Rel from auto-inhibition and its translocation into the nucleus to activate the transcription of antimicrobial peptides. (Adapted from FBrf0224587 and FBrf0238555.)
CGAS-STING SIGNALING PATHWAY CORE COMPONENTS -
The cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) pathway is an anti-viral pattern recognition pathway. In Drosophila, cyclic GMP-AMP (cGAMP) synthases are activated by viral infection, cGAMP is in turn detected by STING ultimately resulting in the activation the NF-κB-like factor Rel and its translocation into the nucleus to activate the transcription of anti-viral genes. (Adapted from FBrf0252868.)
Protein Function (UniProtKB)
Required for the activation of the NF-kappa-B factor Relish (Rel) by acting as an essential signaling component in transmitting the lipopolysaccharide (LPS) signal leading to cact degradation, which is required for direct activation of Rel (PubMed:10636911, PubMed:11018014, PubMed:11156609, PubMed:30119996). Phosphorylates inhibitors of NF-kappa-B (cact) thus leading to the dissociation of the inhibitor/NF-kappa-B complex and ultimately the degradation of the NF-kappa-B inhibitor (PubMed:10636911, PubMed:11018014, PubMed:11156609). Essential for antibacterial immune response (PubMed:11018014). Also required for antiviral immune response (PubMed:30119996).
(UniProt, Q9VEZ5)
Summary (Interactive Fly)

IkappaB kinase, respectively IKK regulatory and catalytic subunits - induction of antimicrobial peptide genes

Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\IKKβ 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
Structure
Protein 3D structure   (Predicted by AlphaFold)   (AlphaFold entry Q9VEZ5)

If you don't see a structure in the viewer, refresh your browser.
Model Confidence:
  • Very high (pLDDT > 90)
  • Confident (90 > pLDDT > 70)
  • Low (70 > pLDDT > 50)
  • Very low (pLDDT < 50)

AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Some regions with low pLDDT may be unstructured in isolation.

Experimentally Determined Structures
Crossreferences
Comments on Gene Model

Gene model reviewed during 5.47

Gene model reviewed during 5.55

Low-frequency RNA-Seq exon junction(s) not annotated.

Shares 5' exon(s) with upstream non-coding gene; shared promoter.

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0304804
2488
717
Additional Transcript Data and Comments
Reported size (kB)

2.476 (longest cDNA)

Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
UniProt
RefSeq ID
GenBank
FBpp0293344
82.6
717
8.02
Polypeptides with Identical Sequences

There is only one protein coding transcript and one polypeptide associated with this gene

Additional Polypeptide Data and Comments
Reported size (kDa)

731 (aa); 84 (kD predicted)

Comments
External Data
Subunit Structure (UniProtKB)

Interacts with key to form the I-kappa-B kinase complex. In vitro, interacts with cact.

(UniProt, Q9VEZ5)
Post Translational Modification

Autophosphorylated; upon LPS stimulation it is transiently activated, and can be autophosphorylated.

(UniProt, Q9VEZ5)
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\IKKβ using the Feature Mapper tool.

External Data
Crossreferences
Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
Linkouts
Expression Data
Testis-specificity index

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).

-0.37

Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
organism

Comment: maternally deposited

pcr
Stage
Tissue/Position (including subcellular localization)
Reference
RT-PCR
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

IKK is constitutively expressed at all developmental stages.

Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Evidence
References
located_in cytoplasm
inferred from direct assay
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\IKKβ in JBrowse
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
DRscDB - A single-cell RNA-seq resource for data mining and data comparison across species
EMBL-EBI Single Cell Expression Atlas - Single cell expression across species
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
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 Aberrations
Classical and Insertion Alleles ( 7 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 13 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of IKKβ
Transgenic constructs containing regulatory region of IKKβ
Aberrations (Deficiencies and Duplications) ( 2 )
Inferred from experimentation ( 2 )
Inferred from location ( 4 )
Variants
Variant Molecular Consequences
Alleles Representing Disease-Implicated Variants
Phenotypes
Orthologs
Human Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Homo sapiens (Human) (69)
10 of 14
Yes
Yes
10 of 14
Yes
Yes
1  
2 of 14
No
No
1  
2 of 14
No
No
2  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
2  
1 of 14
No
No
1 of 14
No
No
5  
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
4  
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
2  
1 of 14
No
No
2  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
2  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
2  
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1  
Hsap\SIK1B
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
6  
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
4  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (49)
10 of 14
Yes
Yes
10 of 14
Yes
Yes
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Mus musculus (laboratory mouse) (63)
10 of 14
Yes
Yes
9 of 14
No
Yes
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (33)
7 of 13
Yes
Yes
7 of 13
Yes
Yes
7 of 13
Yes
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
Danio rerio (Zebrafish) (62)
10 of 14
Yes
Yes
10 of 14
Yes
Yes
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (28)
2 of 14
Yes
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
Anopheles gambiae (African malaria mosquito) (17)
12 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (44)
1 of 13
Yes
No
1 of 13
Yes
Yes
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
Yes
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
Yes
1 of 13
Yes
Yes
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
Saccharomyces cerevisiae (Brewer's yeast) (11)
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
Schizosaccharomyces pombe (Fission yeast) (8)
1 of 12
Yes
No
1 of 12
Yes
No
1 of 12
Yes
No
1 of 12
Yes
No
1 of 12
Yes
No
1 of 12
Yes
No
1 of 12
Yes
No
1 of 12
Yes
No
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:IKKβ. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (20)
4 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
Human Disease Associations
FlyBase Human Disease Model Reports
    Disease Ontology (DO) Annotations
    Models Based on Experimental Evidence ( 0 )
    Allele
    Disease
    Evidence
    References
    Potential Models Based on Orthology ( 3 )
    Modifiers Based on Experimental Evidence ( 2 )
    Disease Associations of Human Orthologs (via DIOPT v9.1 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
    Interaction Browsers

    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
    Subunit Structure (UniProtKB)
    Interacts with key to form the I-kappa-B kinase complex. In vitro, interacts with cact.
    (UniProt, Q9VEZ5 )
    Linkouts
    BioGRID - A database of protein and genetic interactions.
    DroID - A comprehensive database of gene and protein interactions.
    MIST (protein-protein) - An integrated Molecular Interaction Database
    Pathways
    Class of Gene
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    3R
    Recombination map
    3-58
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    89B1-89B1
    Limits computationally determined from genome sequence between P{PZ}blp01618 and P{PZ}gish04895&P{EP}EP3171
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    89B-89B
    (determined by in situ hybridisation)
    Experimentally Determined Recombination Data
    Notes
    Stocks and Reagents
    Stocks (13)
    Genomic Clones (19)
    cDNA Clones (102)
     

    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.

    cDNA clones, fully sequenced
    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)
      RNAi and Array Information
      Linkouts
      DRSC - Results frm RNAi screens
      Antibody Information
      Laboratory Generated Antibodies
       
      Commercially Available Antibodies
       
      Cell Line Information
      Publicly Available Cell Lines
       
        Other Stable Cell Lines
         
          Other Comments

          dsRNA made from templates generated with primers directed against this gene tested in RNAi screen for effects on Kc167 and S2R+ cell morphology.

          Mutants show no detectable induction of Dpt, CecA1, CecA2, Def, Dro or Mtk on bacterial challenge. Attacin levels are 30% wild type and Drs induction is normal. In direction of increasing cytology: pnr+ ird5- msps+ Akt1+

          ird5 is specifically required for the activation of Rel.

          A small fraction of embryos produced by homozygous mutant females show a weakly dorsalized phenotype.

          Identification: as a mutation that fails to induce expression of Ecol\lacZDpt.PR normally in response to infection. 2 alleles have been obtained.

          ird5 is required for the activation of the antibacterial immune response genes.

          Identification: transcription unit identified during molecular analysis of the msps genomic region.

          Encodes a Drosophila I-ΚB kinase.

          Components of the immune response are identified in a screen for the failure to induce a Dpt (an antibacterial peptide) Ecol\lacZ reporter gene.

          Mutants are impaired in their induction of Dpt, but show distinct regulation of the two transcription factors, dl and Dif, implicated in the immune response.

          Identification: EMS screen for mutations that prevent Dpt expression in response to infection.

          Mutants exhibit a constitutive Dif nuclear localisation.

          Relationship to Other Genes
          Source for database merge of

          Source for merge of: IKK ird5

          Source for merge of: ird5 anon-89Bd

          Source for merge of: IKK IK

          Source for merge of: IKK LPS-responsive-kinase

          Additional comments

          Source for merge of IKK IK was sequence comparison ( date:000202 ).

          Source for merge of IKK LPS-responsive-kinase was sequence comparison ( date:000306 ).

          Nomenclature History
          Source for database identify of

          Source for identity of: IKKβ ird5

          Nomenclature comments

          Renamed from the placeholder symbol 'ird5' to 'IKKβ', which is the preferred symbol in the published literature.

          Etymology
          Synonyms and Secondary IDs (49)
          Reported As
          Symbol Synonym
          IK
          Lak
          anon-89Bd
          ird5/DmIkkβ
          Name Synonyms
          I-kappaB kinase β
          IKK-like protein
          LPS-responsive kinase
          LPS-responsive-kinase
          Lipopolysaccharide activated kinase
          cactus kinase
          immune response-deficient 5
          mmune response deficient 5
          Secondary FlyBase IDs
          • FBgn0028725
          • FBgn0028726
          • FBgn0029099
          • FBgn0029160
          Datasets (0)
          Study focus (0)
          Experimental Role
          Project
          Project Type
          Title
          Study result (0)
          Result
          Result Type
          Title
          External Crossreferences and Linkouts ( 69 )
          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/GCRP - The gene-centric reference proteome (GCRP) provides a 1:1 mapping between genes and UniProt accessions in which a single 'canonical' isoform represents the product(s) of each protein-coding gene.
          UniProt/Swiss-Prot - Manually annotated and reviewed records of protein sequence and functional information
          Other crossreferences
          AlphaFold DB - AlphaFold provides open access to protein structure predictions for the human proteome and other key proteins of interest, to accelerate scientific research.
          BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
          DRscDB - A single-cell RNA-seq resource for data mining and data comparison across species
          EMBL-EBI Single Cell Expression Atlas - Single cell expression across species
          FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
          FlyMine - An integrated database for Drosophila genomics
          KEGG Genes - Molecular building blocks of life in the genomic space.
          MARRVEL_MODEL - MARRVEL (model organism gene)
          Linkouts
          BioGRID - A database of protein and genetic interactions.
          Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) 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.
          FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
          FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
          Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
          Flygut - An atlas of the Drosophila adult midgut
          iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
          Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
          KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
          MIST (protein-protein) - An integrated Molecular Interaction Database
          SignaLink - A signaling pathway resource with multi-layered regulatory networks.
          References (203)