FB2025_02 , released April 17, 2025
Gene: Dmel\Dab
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General Information
Symbol
Dmel\Dab
Species
D. melanogaster
Name
Dab adaptor protein
Annotation Symbol
CG9695
Feature Type
FlyBase ID
FBgn0000414
Gene Model Status
Stock Availability
Gene Summary
Disabled (Dab) encodes an adaptor protein that is a core component of the Abl tyrosine kinase signaling pathway. It associates with transmembrane receptors including those encoded by N and Appl. It is involved in axon patterning, embryo morphogenesis and trafficking in endocytosis, exocytosis and Golgi organization. [Date last reviewed: 2019-03-07] (FlyBase Gene Snapshot)
Also Known As

disabled

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
3-44
RefSeq locus
NT_037436 REGION:16712126..16724575
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (14 terms)
Molecular Function (3 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
inferred from physical interaction with UniProtKB:Q08012
inferred from physical interaction with UniProtKB:P13368
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
traceable author statement
Biological Process (9 terms)
Terms Based on Experimental Evidence (9 terms)
CV Term
Evidence
References
involved_in cellularization
inferred from mutant phenotype
inferred from direct assay
inferred from mutant phenotype
involved_in dorsal closure
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from direct assay
Terms Based on Predictions or Assertions (0 terms)
Cellular Component (2 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
located_in axon
inferred from direct assay
located_in cytosol
inferred from direct assay
Terms Based on Predictions or Assertions (0 terms)
Gene Group (FlyBase)
Protein Family (UniProt)
-
Summaries
Gene Snapshot
Disabled (Dab) encodes an adaptor protein that is a core component of the Abl tyrosine kinase signaling pathway. It associates with transmembrane receptors including those encoded by N and Appl. It is involved in axon patterning, embryo morphogenesis and trafficking in endocytosis, exocytosis and Golgi organization. [Date last reviewed: 2019-03-07]
Pathway (FlyBase)
Positive Regulators of Sevenless Signaling Pathway -
Positive regulators of Sevenless signaling up-regulate the pathway, promoting cell fate to that of an R7 photoreceptor. (Adapted from FBrf0127283 and FBrf0221727).
Protein Function (UniProtKB)
Together with Abl, involved in embryonic neural development. May have a role in eye development. Acts as an adapter protein for SH2-domain containing proteins during sevenless (sev) signaling.
(UniProt, P98081)
Phenotypic Description (Red Book; Lindsley and Zimm 1992)
Dab: Disabled
A dominant enhancer of the lethal phenotype of genotypes deficient in Abl function. Abll/Abl-, which ordinarily survive to late pupal or adult stages, die as late embryos or early larvae with abnormal CNS development when heterozygous for Dab mutants or deficiencies; such Dab or Dab- heterozygotes are normal in the presence of Abl+. Double mutant embryos, Abl- Dab-, are lethal and have few or no proper longitudinal or commissural axons in the CNS. Homozygous Dab- in the presence of Abl+ results in reduced survival with intermediate levels of CNS disruption.
Summary (Interactive Fly)

adaptor protein that is a core component of the Abl tyrosine kinase signaling pathway - interacts with Abl to regulate axon guidance - associates with transmembrane receptors including N and Appl - involved in axon patterning, embryo morphogenesis and trafficking in endocytosis, exocytosis and Golgi organization discoidindomainrec.htm

Gene Model and Products
Number of Transcripts
8
Number of Unique Polypeptides
8

Please see the JBrowse view of Dmel\Dab 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 P98081)

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 5.44

Stop-codon suppression (UGA) postulated; FBrf0216884.

Annotated transcripts do not represent all possible combinations of alternative exons and/or alternative promoters.

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

Gene model reviewed during 5.46

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0075318
8461
2224
FBtr0305084
7990
2047
FBtr0305085
8449
2200
FBtr0305086
7842
2071
FBtr0330189
8301
2360
FBtr0330190
8449
2336
FBtr0333625
8067
2146
FBtr0333626
8076
2149
Additional Transcript Data and Comments
Reported size (kB)

8-8.5 (northern blot)

Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
UniProt
RefSeq ID
GenBank
FBpp0075077
243.1
2224
4.99
FBpp0293621
225.0
2047
4.99
FBpp0293622
241.0
2200
5.02
FBpp0293623
227.1
2071
4.96
FBpp0303222
259.1
2360
5.17
FBpp0303223
257.0
2336
5.21
FBpp0305800
234.7
2146
5.00
FBpp0305801
235.4
2149
4.96
Polypeptides with Identical Sequences

None of the polypeptides share 100% sequence identity.

Additional Polypeptide Data and Comments
Reported size (kDa)

2411, 2198 (aa); 250, 220 (kD)

Comments
External Data
Subunit Structure (UniProtKB)

Binds the SH3 domains of drk via the Pro-rich domain. When phosphorylated, can interact with the SH2 domains of drk. Binds sev via the phosphotyrosine interaction domain (PID).

(UniProt, P98081)
Post Translational Modification

Probably phosphorylated by the Abl tyrosine kinase. Phosphorylated on tyrosine residues in response to sevenless activation.

(UniProt, P98081)
Crossreferences
InterPro - A database of protein families, domains and functional sites
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\Dab 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).

-1.13

Transcript Expression
No Assay Recorded
Stage
Tissue/Position (including subcellular localization)
Reference
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

Dab transcripts are uniformly in expressed from blastoderm through gastrulation. At the end of germ band extension, higher levels of Dab mRNA are seen in the mesoderm and in the central nervous system.

Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
No Assay Recorded
Stage
Tissue/Position (including subcellular localization)
Reference
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
mass spectroscopy
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

During gastrulation, Dab protein is broadly distributed. During germ band retraction, higher levels are seen in the mesoderm and in the central nervous system. Later in development, the message is concentrated in axon bundles. Dab protein is also detected in PNS cell clusters and in the body wall musculature.

Marker for
 
Subcellular Localization
CV Term
Evidence
References
located_in axon
inferred from direct assay
located_in cytosol
inferred from direct assay
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\Dab 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
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 ( 13 )
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 Dab
Transgenic constructs containing regulatory region of Dab
Aberrations (Deficiencies and Duplications) ( 4 )
Variants
Variant Molecular Consequences
Alleles Representing Disease-Implicated Variants
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
Orthologs
Human Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Homo sapiens (Human) (29)
7 of 14
Yes
Yes
5 of 14
No
Yes
1  
2 of 14
No
No
1  
2 of 14
No
No
2 of 14
No
Yes
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 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
2  
1 of 14
No
No
1 of 14
No
Yes
1  
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  
1 of 14
No
Yes
1  
1 of 14
No
No
1  
Hsap\LOC112267931
1 of 14
No
Yes
1 of 14
No
No
4  
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
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (23)
7 of 14
Yes
Yes
6 of 14
No
Yes
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
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
Yes
1 of 14
No
Yes
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
Mus musculus (laboratory mouse) (21)
7 of 14
Yes
Yes
1  
6 of 14
No
Yes
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1  
2 of 14
No
No
2 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
Yes
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
Xenopus tropicalis (Western clawed frog) (17)
4 of 13
Yes
Yes
4 of 13
Yes
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
Yes
1 of 13
No
No
1 of 13
No
Yes
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
Danio rerio (Zebrafish) (31)
6 of 14
Yes
Yes
6 of 14
Yes
Yes
5 of 14
No
Yes
2 of 14
No
No
2 of 14
No
No
2 of 14
No
Yes
2 of 14
No
Yes
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 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
Yes
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
Caenorhabditis elegans (Nematode, roundworm) (8)
7 of 14
Yes
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
Anopheles gambiae (African malaria mosquito) (10)
10 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (0)
Saccharomyces cerevisiae (Brewer's yeast) (0)
Schizosaccharomyces pombe (Fission yeast) (0)
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:Dab. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (11)
3 of 13
3 of 13
3 of 13
3 of 13
2 of 13
2 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 ( 1 )
    Human Ortholog
    Disease
    Evidence
    References
    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.
    Homo sapiens (Human)
    Gene name
    Score
    OMIM
    OMIM Phenotype
    DO term
    Complementation?
    Transgene?
    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
    Show/hide secondary interactors 
    (data from AllianceMine provided by esyN)
    esyN Network Key:
    Suppression
    Enhancement
    Other 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)
    Binds the SH3 domains of drk via the Pro-rich domain. When phosphorylated, can interact with the SH2 domains of drk. Binds sev via the phosphotyrosine interaction domain (PID).
    (UniProt, P98081 )
    Linkouts
    BioGRID - A database of protein and genetic interactions.
    DroID - A comprehensive database of gene and protein interactions.
    MIST (genetic) - An integrated Molecular Interaction Database
    MIST (protein-protein) - An integrated Molecular Interaction Database
    Pathways
    Signaling Pathways (FlyBase)
    Metabolic Pathways
    FlyBase
    External Links
    External Data
    Linkouts
    KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
    SignaLink - A signaling pathway resource with multi-layered regulatory networks.
    Class of Gene
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    3L
    Recombination map
    3-44
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    73C1-73C1
    Limits computationally determined from genome sequence between P{PZ}Baldspot02281 and P{PZ}blot01658
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    73B5-73B7
    (determined by in situ hybridisation)
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (16)
    Genomic Clones (17)
     

    Please Note FlyBase no longer curates genomic clone accessions so this list may not be complete

    cDNA Clones (20)
     

    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)
      BDGP DGC clones
      RNAi and Array Information
      Linkouts
      DRSC - Results frm RNAi screens
      Antibody Information
      Laboratory Generated Antibodies
      Commercially Available Antibodies
       
      Developmental Studies Hybridoma Bank - Monoclonal antibodies for use in research
      Cell Line Information
      Publicly Available Cell Lines
       
        Other Stable Cell Lines
         
          Other Comments

          Dab is a component of the Abl signaling pathway, functioning upstream of Abl and ena.

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

          dsRNA made from templates generated with primers directed against this gene is tested in an RNAi screen for effects on actin-based lamella formation.

          The Dab and Abl gene products may play a role in N signalling in axons, perhaps by binding to the N intracellular domain. The PTB domain of Dab binds directly to the intracellular domain of N in vitro.

          A PID, phosphotyrosine interaction domain, has been found in the Dab protein. PID is a protein protein interaction motif that binds to the Asn-Pro-X-Tyr(P) motif found in many tyrosine phosphorylated proteins.

          Relationship to Other Genes
          Source for database merge of
          Additional comments

          All five mutations originally thought to be lesions in the Dab gene (see FBrf0049327, FBrf0058531 and FBrf0084025) are actually lesions in the Nrt gene, the alleles are: NrtM2, NrtM29, NrtM54, NrtM100 and NrtM221.

          FlyBase curator comment: in FBrf0058531, the NrtM2 allele is stated to be due to a lesion in the Dab gene, since four copies of a rescue construct containing Dab sequences (P{Dab.G}) rescue the lethality of NrtM2 Df(3L)st-j7/Abl1 animals. However this has subsequently been shown to be an error (see FBrf0162067) - the NrtM2 allele is actually due to a lesion in the Nrt gene.

          Nomenclature History
          Source for database identify of
          Nomenclature comments

          The original gene name "Disabled" (Dab) was changed to "Dab adaptor protein" (Dab) to reflect its homology to the human gene and eliminate its potentially offensive association with human disability.

          Etymology
          Synonyms and Secondary IDs (7)
          Reported As
          Secondary FlyBase IDs
            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
            UniProt/TrEMBL - Automatically annotated and unreviewed 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.
            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
            InterPro - A database of protein families, domains and functional sites
            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
            Developmental Studies Hybridoma Bank - Monoclonal antibodies for use in research
            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
            FlyMet - A comprehensive tissue-specific metabolomics resource for Drosophila.
            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 (genetic) - An integrated Molecular Interaction Database
            MIST (protein-protein) - An integrated Molecular Interaction Database
            SignaLink - A signaling pathway resource with multi-layered regulatory networks.
            References (117)