General Information
Symbol
Dmel\nab
Species
D. melanogaster
Name
nab
Annotation Symbol
CG33545
Feature Type
FlyBase ID
FBgn0259986
Gene Model Status
Stock Availability
Gene Snapshot
Nab is a transcriptional co-factor that acts in combination with the transcriptional factors rn in proximal-distal wing patterning and sqz in CNS development. [Date last reviewed: 2016-06-23]
Also Known As
dnab, l(3)64Aj
Genomic Location
Cytogenetic map
Sequence location
3L:4,153,618..4,160,932 [-]
Recombination map
3-10
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)
Belongs to the NAB family. (Q59E55)
Molecular Function (see GO section for details)
Experimental Evidence
Predictions / Assertions
-
Summaries
UniProt Contributed Function Data
Transcriptional regulator that can both act as a coactivator or a corepressor depending on the context. Lacks DNA-binding domains and acts by associating with other transcription factors such as rotund (rn) and squeeze (sqz). Acts as a coactivator of sqz and is required to limit the number of neurons that express the LIM-homeodomain gene apterous and to specify Tv neuronal fate. Acts as corepressor of rn in wing development and is required to limit the expression of wingless (wg) in the wing hinge, where wg plays a mitogenic role.
(UniProt, Q59E55)
Gene Model and Products
Number of Transcripts
3
Number of Unique Polypeptides
3

Please see the GBrowse view of Dmel\nab or the JBrowse view of Dmel\nab 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 5.45
Alternative translation stop created by use of multiphasic reading frames within coding region.
Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0302032
2470
564
FBtr0302033
2385
625
FBtr0332660
2389
554
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
FBpp0291242
60.7
564
7.76
FBpp0291243
66.5
625
6.71
FBpp0304906
59.6
554
7.80
Polypeptides with Identical Sequences

None of the polypeptides share 100% sequence identity.

Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Subunit Structure (UniProtKB)
Interacts with sqz and rn. Able to bind mammalian EGR1 but not Drosophila EGR-like protein klu.
(UniProt, Q59E55)
Domain
The NAB conserved domain 2 (NCD2) is necessary for transcriptional repression.
(UniProt, Q59E55)
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\nab 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 (9 terms)
Molecular Function (1 term)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from mutant phenotype
inferred from genetic interaction with FLYBASE:sqz; FB:FBgn0010768
inferred from genetic interaction with FLYBASE:rn; FB:FBgn0267337
inferred from physical interaction with FLYBASE:sqz; FB:FBgn0010768
inferred from physical interaction with FLYBASE:rn; FB:FBgn0267337
Terms Based on Predictions or Assertions (0 terms)
Biological Process (7 terms)
Terms Based on Experimental Evidence (5 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
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000290064
(assigned by GO_Central )
Cellular Component (1 term)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000290064
(assigned by GO_Central )
Expression Data
Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
nab is expressed in the presumptive wing blade in second instar larvae. There is no overlap with brk expression in second instar and slight overlap in third instar larvae.
nab expression in wing discs is first seen in late second instar/early third instar as a small group of cells in the center of the rn domain. The dve domain is broader than the nab domain in the presumptive wing. The dve and nab domains are nearly complementary to the zfh2 domain.
nab is expressed just before the thoracic neuroblast 3-3 produces its last GMC that gives rise to the sixth-born EL neuron.
A low level of nab expression is seen in all imaginal discs. In late third instar wing discs, nab was strongly expressed in a circular domain that delimits the expression of wg in the IR. A low level of expression is seen in the rest of the wing disc, except in the hinge region. nab expression is detected in a stripe corresponding to the morphogenetic furrow in the eye disc.
Marker for
 
Subcellular Localization
CV Term
Evidence
References
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

GBrowse - Visual display of RNA-Seq signals

View Dmel\nab 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
FLIGHT - Cell culture data for RNAi and other high-throughput technologies
Flygut - An atlas of the Drosophila adult midgut
Images
Alleles, Insertions, Transgenic Constructs and Phenotypes
Classical and Insertion Alleles ( 14 )
Transgenic Constructs ( 10 )
Deletions and Duplications ( 7 )
Summary of Phenotypes
For more details about a specific phenotype click on the relevant allele symbol.
Lethality
Allele
Other Phenotypes
Allele
Phenotype manifest in
Allele
Orthologs
Human Orthologs (via DIOPT v7.1)
Homo sapiens (Human) (2)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
11 of 15
Yes
Yes
11 of 15
Yes
Yes
Model Organism Orthologs (via DIOPT v7.1)
Mus musculus (laboratory mouse) (2)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
11 of 15
Yes
Yes
10 of 15
No
Yes
Rattus norvegicus (Norway rat) (2)
10 of 13
Yes
Yes
7 of 13
No
Yes
Xenopus tropicalis (Western clawed frog) (2)
7 of 12
Yes
Yes
6 of 12
No
Yes
Danio rerio (Zebrafish) (3)
11 of 15
Yes
Yes
11 of 15
Yes
Yes
11 of 15
Yes
Yes
Caenorhabditis elegans (Nematode, roundworm) (1)
12 of 15
Yes
Yes
Arabidopsis thaliana (thale-cress) (0)
No orthologs reported.
Saccharomyces cerevisiae (Brewer's yeast) (0)
No orthologs reported.
Schizosaccharomyces pombe (Fission yeast) (0)
No orthologs reported.
Orthologs in Drosophila Species (via OrthoDB v9.1) ( EOG091907UZ )
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 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) ( EOG091503RE )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Musca domestica
House fly
Glossina morsitans
Tsetse fly
Lucilia cuprina
Australian sheep blowfly
Mayetiola destructor
Hessian fly
Aedes aegypti
Yellow fever mosquito
Anopheles gambiae
Malaria mosquito
Culex quinquefasciatus
Southern house mosquito
Orthologs in non-Dipteran Insects (via OrthoDB v9.1) ( EOG090W03JH )
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
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
Tribolium castaneum
Red flour beetle
Pediculus humanus
Human body louse
Rhodnius prolixus
Kissing bug
Rhodnius prolixus
Kissing bug
Acyrthosiphon pisum
Pea aphid
Acyrthosiphon pisum
Pea aphid
Zootermopsis nevadensis
Nevada dampwood termite
Orthologs in non-Insect Arthropods (via OrthoDB v9.1) ( EOG090X03G4 )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Strigamia maritima
European centipede
Strigamia maritima
European centipede
Ixodes scapularis
Black-legged tick
Ixodes scapularis
Black-legged tick
Stegodyphus mimosarum
African social velvet spider
Stegodyphus mimosarum
African social velvet spider
Tetranychus urticae
Two-spotted spider mite
Orthologs in non-Arthropod Metazoa (via OrthoDB v9.1) ( EOG091G0NQE )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Strongylocentrotus purpuratus
Purple sea urchin
Ciona intestinalis
Vase tunicate
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.
    Homo sapiens (Human)
    Gene name
    Score
    OMIM
    OMIM Phenotype
    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
    esyN Network Diagram
    Show neighbor-neighbor interactions:
    Select Layout:
    Legend:
    Protein
    RNA
    Selected Interactor(s)
    Interactions Browser

    Please look at the Interaction Group reports for full details of the physical interactions
    protein-protein
    Interacting group
    Assay
    References
    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
    Subunit Structure (UniProtKB)
    Interacts with sqz and rn. Able to bind mammalian EGR1 but not Drosophila EGR-like protein klu.
    (UniProt, Q59E55 )
    Linkouts
    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
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    3L
    Recombination map
    3-10
    Cytogenetic map
    Sequence location
    3L:4,153,618..4,160,932 [-]
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    64A8-64A8
    Limits computationally determined from genome sequence between P{PZ}l(3)rG166rG166 and P{PZ}sinu06524
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    64A8-64A8
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (11)
    Genomic Clones (14)
     

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

    cDNA Clones (3)
     

    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
       
      Commercially Available Antibodies
       
      Other Information
      Relationship to Other Genes
      Source for database identify of
      Source for identity of: nab l(3)64Aj
      Source for identity of: nab CG15000 CG15001
      Source for database merge of
      Source for merge of: l(3)SH143 nab
      Source for merge of: CG15000 CG15001
      Additional comments
      Other Comments
      nab activity triggers apoptosis through the pro-apoptotic proteins rpr and W, which in turn reduce th protein levels, allowing Nc activation by Ark and subsequent activation of the effector caspases.
      Annotations CG15000 and CG15001 merged as CG33545 (which corresponds to nab) in release 4.1 of the genome annotation.
      1 allele of l(3)SH143 recovered in a P-insertion screen.
      Discussed during genetic analysis of the Ras64B-Rop region.
      Origin and Etymology
      Discoverer
      Etymology
      Identification
      External Crossreferences and Linkouts ( 32 )
      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/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
      InterPro - A database of protein families, domains and functional sites
      Linkouts
      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
      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
      Synonyms and Secondary IDs (13)
      Datasets (0)
      Study focus (0)
      Experimental Role
      Project
      Project Type
      Title
      References (63)