FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Dmel\Trabd
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General Information
Symbol
Dmel\Trabd
Species
D. melanogaster
Name
TraB domain containing
Annotation Symbol
CG46280
Feature Type
protein_coding_gene
FlyBase ID
FBgn0283438
Gene Model Status
Current
Stock Availability
8 publicly available
Gene Summary
Contribute a Gene Snapshot for this gene.
All Summaries
Key Links
Genomic Location
Cytogenetic map
87D9-87D9
Sequence location
Recombination map
3-53
RefSeq locus
NT_033777 REGION:13026283..13030659
Sequence
Get Decorated FASTA
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
NCBI
UCSC
Ensembl
Function
Gene Ontology (GO) Annotations (3 terms)
Molecular Function (1 term)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
enables mitochondrion-mitochondrion outer membrane tether activity
inferred from sequence or structural similarity with UniProtKB:Q9H4I3
(Gene Ontology Curators, 2002-)
Biological Process (1 term)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
involved_in mitochondrial fusion
inferred from genetic interaction with FLYBASE:Marf; FB:FBgn0029870
(Zhou et al., 2024)
Terms Based on Predictions or Assertions (0 terms)
Cellular Component (1 term)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
is_active_in mitochondrial outer membrane
inferred from direct assay
(Zhou et al., 2024)
Terms Based on Predictions or Assertions (0 terms)
Gene Group (FlyBase)
Protein Family (UniProt)
-
Protein Signatures (InterPro)
Summaries
Gene Model and Products
Number of Transcripts
2
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\Trabd 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 Q9VG01)

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

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

Annotated transcripts do not represent all supported alternative splices within 5' UTR.

Gene model reviewed during 5.47

Shares 5' UTR with upstream gene.

Gene model reviewed during 6.05

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
Trabd-RA
FBtr0445182
NM_141996
2158
532
Trabd-RB
FBtr0445183
NM_169493
2806
532
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
UniProt
RefSeq ID
GenBank
Trabd-PA
FBpp0401442
58.8
532
6.05
Q9VG01
NP_650253
AAF54893
Trabd-PB
FBpp0401443
58.8
532
6.05
Q9VG01
NP_731765
AAN14341
Polypeptides with Identical Sequences

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

532 aa isoforms: Trabd-PA, Trabd-PB
Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
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\Trabd using the Feature Mapper tool.

External Data
Crossreferences
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).

NA

Transcript Expression
Polypeptide Expression
mass spectroscopy
Stage
Tissue/Position (including subcellular localization)
Reference
adult stage
adult head
(Aradska et al., 2015)
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Evidence
References
is_active_in mitochondrial outer membrane
inferred from direct assay
(Zhou et al., 2024)
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\Trabd in JBrowse
RNA-Seq by Region - Search RNA-Seq expression levels by exon or genomic region
Bulk Downloads
RNA-Seq RPKM values for all genes
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
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
Images
FlyBase Wiki
Image Based Resources
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 6 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 5 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Trabd
Transgenic constructs containing regulatory region of Trabd
Aberrations (Deficiencies and Duplications) ( 0 )
Inferred from experimentation ( 0 )
Inferred from location ( 7 )
Variants
Variant Molecular Consequences
Alleles Representing Disease-Implicated Variants
Phenotypes
Orthologs
Downloads
Download All DIOPT Orthologs
Human Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Source
Compara
Domainoid
eggNOG
Hieranoid
Homologene
Inparanoid
OMA
OrthoDB
OrthoFinder
OrthoInspector
orthoMCL
Panther
Phylome
SonicParanoid
Alignment
Complementation?
Transgene?
Homo sapiens (Human) (1)
Hsap\TRABD
11 of 14
Yes
Yes
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Source
Compara
Domainoid
eggNOG
Hieranoid
Homologene
Inparanoid
OMA
OrthoDB
OrthoFinder
OrthoInspector
orthoMCL
Panther
Phylome
SonicParanoid
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (1)
Rnor\Trabd
11 of 14
Yes
Yes
Mus musculus (laboratory mouse) (1)
Mmus\Trabd
10 of 14
Yes
Yes
Xenopus tropicalis (Western clawed frog) (3)
Xtro\trabd
4 of 13
Yes
Yes
Xtro\selenoo
3 of 13
No
Yes
Xtro\tmem215
3 of 13
No
Yes
Danio rerio (Zebrafish) (1)
Drer\trabd
11 of 14
Yes
Yes
Caenorhabditis elegans (Nematode, roundworm) (1)
Cele\F38A5.2
11 of 14
Yes
Yes
Anopheles gambiae (African malaria mosquito) (1)
Agam\AgaP_AGAP004340
9 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (15)
Atha\AT1G05270
9 of 13
Yes
Yes
Atha\AT2G32340
9 of 13
Yes
Yes
Atha\AT5G52030
3 of 13
No
Yes
Atha\ATH1
1 of 13
No
No
Atha\BEL1
1 of 13
No
No
Atha\BEL10
1 of 13
No
No
Atha\BLH1
1 of 13
No
No
Atha\BLH2
1 of 13
No
No
Atha\BLH3
1 of 13
No
No
Atha\BLH4
1 of 13
No
No
Atha\BLH5
1 of 13
No
No
Atha\BLH6
1 of 13
No
No
Atha\BLH7
1 of 13
No
No
Atha\BLH8
1 of 13
No
No
Atha\RPL
1 of 13
No
No
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:Trabd. Refer to their site for version information.
Paralogs
Downloads
Download All DIOPT Paralogs
Paralogs (via DIOPT v9.1)
Human Disease Associations
FlyBase Human Disease Model Reports
    Disease Ontology (DO) Annotations
    Models Based on Experimental Evidence ( 4 )
    Potential Models Based on Orthology ( 0 )
    Human Ortholog
    Disease
    Evidence
    References
    Modifiers Based on Experimental Evidence ( 1 )
    Allele
    Disease
    Interaction
    References
    TrabdUAS.Tag:V5
    model of  neurodegenerative disease
    is exacerbated by Drp1UAS.cDa
    (Zhou et al., 2024)
    exacerbates  tauopathy
    modeled by Hsap\MAPTGMR.Ex.PJ
    (Zhou et al., 2024)
    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?
    TRABD; TraB domain containing
    11 of 14
    621246
        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
        Interaction Browsers
        Summary of Genetic Interactions
        Interaction Browsers
        View in FlyBase Interactions Browser   View in MIST tool (external link)
        Please look at the allele data for full details of the genetic interactions
        Starting gene(s)
        Interaction type
        Interacting gene(s)
        Reference
        Trabd
        enhanceable
        Drp1
        (Zhou et al., 2024)
        Starting gene(s)
        Interaction type
        Interacting gene(s)
        Reference
        Drp1
        enhanceable
        Trabd
        (Zhou et al., 2024)
        Drp1
        suppressible
        Trabd
        (Zhou et al., 2024)
        Marf
        suppressible
        Trabd
        (Zhou et al., 2024)
        Marf
        enhanceable
        Trabd
        (Zhou et al., 2024)
        External Data
        Linkouts
        Pathways
        Signaling Pathways (FlyBase)
        Metabolic Pathways
        FlyBase
        External Links
        External Data
        Linkouts
        Class of Gene
        Genomic Location and Detailed Mapping Data
        Chromosome (arm)
        3R
        Recombination map
        3-53
        Cytogenetic map
        87D9-87D9
        Sequence location
        FlyBase Computed Cytological Location
        Cytogenetic map
        Evidence for location
        87D9-87D9
        Experimentally Determined Cytological Location
        Cytogenetic map
        Notes
        References
        Experimentally Determined Recombination Data
        Location

        3-53

        (FlyBase, 2016)

        3-50.4

        (Comeron et al., 2012)
        Left of (cM)
        Right of (cM)
        Notes
        Stocks and Reagents
        Stocks (8)
        Genomic Clones (19)
        cDNA Clones (62)
         

        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
        Other clones
        RNAi and Array Information
        Linkouts
        Antibody Information
        Laboratory Generated Antibodies
         
        Commercially Available Antibodies
         
        Cell Line Information
        Publicly Available Cell Lines
         
          Other Stable Cell Lines
           
            Other Comments
            Relationship to Other Genes
            Source for database merge of
            Additional comments

            Annotation CG12360 split into CG46280 and CG46281 in release 6.06 of the genome annotation. Split supported by comparison to other Drosophila species, which reveals the presence of stops or frameshifts in the CDS of one previously annotated isoform.

            (FlyBase Genome Annotators, 2015)
            Nomenclature History
            Source for database identify of

            Source for identity of: Trabd CG46280

            (Zhou et al., 2024)
            Nomenclature comments
            Etymology
            Synonyms and Secondary IDs (5)
            Reported As
            Symbol Synonym
            CG12360
            (Zirin et al., 2015, Ni et al., 2010.12.1, FlyBase, 1996-)
            CG46280
            (Zhou et al., 2024, Transgenic RNAi Project members, 2017-, Clandinin and Owens, 2016-, FlyBase Genome Annotators, 2015)
            Trabd
            dTRABD
            (Zhou et al., 2024)
            Name Synonyms
            TraB domain containing
            Secondary FlyBase IDs
            • FBgn0038111
            Datasets (0)
            Study focus (0)
            Experimental Role
            Project
            Project Type
            Title
            Study result (0)
            Result
            Result Type
            Title
            External Crossreferences and Linkouts ( 25 )
            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/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.
            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
            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
            Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
            FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
            Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
            iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
            References (21)