FB2022_02, released March 29, 2022

Gene: Dmel\Tom20

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General Information
Symbol
Dmel\Tom20
Species
D. melanogaster
Name
Translocase of outer membrane 20
Annotation Symbol
CG7654
Feature Type
protein_coding_gene
FlyBase ID
FBgn0036928
Gene Model Status
Current
Stock Availability
9 publicly available
Gene Summary
Contribute a Gene Snapshot for this gene.
All Summaries
Key Links
Genomic Location
Cytogenetic map
76E1-76E1
Sequence location
Recombination map
3-46
RefSeq locus
NT_037436 REGION:20000644..20002446
Sequence
Get Decorated FASTA
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
NCBI
UCSC
Ensembl
PopFly
Function
GO Summary Ribbons
Gene Ontology (GO) Annotations (7 terms)
Molecular Function (2 terms)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
enables mitochondrion targeting sequence binding
inferred from biological aspect of ancestor with PANTHER:PTN000277108
(assigned by GO_Central )
(Gaudet et al., 2011)
contributes_to protein transmembrane transporter activity
inferred from biological aspect of ancestor with PANTHER:PTN000277108
(assigned by GO_Central )
(Gaudet et al., 2011)
Biological Process (2 terms)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
involved_in protein import into mitochondrial matrix
inferred from biological aspect of ancestor with PANTHER:PTN000277108
(assigned by GO_Central )
(Gaudet et al., 2011)
involved_in tRNA import into mitochondrion
inferred from biological aspect of ancestor with PANTHER:PTN000277108
(assigned by GO_Central )
(Gaudet et al., 2011)
Cellular Component (3 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
located_in mitochondrion
inferred from direct assay
(Hwa et al., 2004)
inferred from high throughput direct assay
(Tan et al., 2009)
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
is_active_in integral component of mitochondrial outer membrane
inferred from biological aspect of ancestor with PANTHER:PTN000277108
(assigned by GO_Central )
(Gaudet et al., 2011)
part_of mitochondrial outer membrane translocase complex
inferred from biological aspect of ancestor with PANTHER:PTN000277108
(assigned by GO_Central )
(Gaudet et al., 2011)
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\Tom20 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 New Section
Protein 3D structure   (Predicted by AlphaFold)   (AlphaFold entry Q95RF6)

If you don't see the viewer to the right, 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.

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 5.45

Sequence Ontology: Class of Gene
nuclear_gene
protein_coding_gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
Tom20-RA
FBtr0074903
NM_140912
743
171
Tom20-RB
FBtr0332719
NM_001275156
1008
171
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
Tom20-PA
FBpp0074672
18.8
171
7.35
NP_649169
AAF49080
Tom20-PB
FBpp0304965
18.8
171
7.35
NP_001262085
AGB94778
Polypeptides with Identical Sequences

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

171 aa isoforms: Tom20-PA, Tom20-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\Tom20 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
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
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
embryonic stage 1 -- 3
organism

Comment: maternally deposited

(Fisher et al., 2012)
embryonic stage 4 -- 6
organism | ubiquitous
(Fisher et al., 2012)
embryonic stage 7 -- 8
anterior endoderm anlage
(Fisher et al., 2012)
organism | ubiquitous
(Fisher et al., 2012)
posterior endoderm
(Fisher et al., 2012)
embryonic stage 9 -- 10
anterior endoderm
(Fisher et al., 2012)
head mesoderm
(Fisher et al., 2012)
inclusive hindgut primordium
(Fisher et al., 2012)
organism | ubiquitous
(Fisher et al., 2012)
posterior endoderm
(Fisher et al., 2012)
trunk mesoderm
(Fisher et al., 2012)
embryonic stage 11 -- 12
anterior midgut primordium
(Fisher et al., 2012)
dorsal pharyngeal muscle primordium
(Fisher et al., 2012)
foregut primordium
(Fisher et al., 2012)
head mesoderm
(Fisher et al., 2012)
hindgut proper primordium
(Fisher et al., 2012)
Malpighian tubule primordium
(Fisher et al., 2012)
organism | ubiquitous
(Fisher et al., 2012)
posterior midgut primordium
(Fisher et al., 2012)
salivary gland body primordium
(Fisher et al., 2012)
somatic muscle primordium

Comment: reported as muscle system primordium

(Fisher et al., 2012)
visceral muscle primordium

Comment: reported as muscle system primordium

(Fisher et al., 2012)
trunk mesoderm
(Fisher et al., 2012)
embryonic stage 13 -- 16
dorsal pharyngeal muscle cell
(Fisher et al., 2012)
embryonic anal pad
(Fisher et al., 2012)
embryonic hindgut
(Fisher et al., 2012)
embryonic Malpighian tubule
(Fisher et al., 2012)
embryonic/larval midgut
(Fisher et al., 2012)
embryonic/larval muscle system
(Fisher et al., 2012)
embryonic/larval somatic muscle cell
(Fisher et al., 2012)
embryonic/larval visceral muscle cell
(Fisher et al., 2012)
adult stage | male
testis

Comment: apical tip

(Hwa et al., 2004)
northern blot
Stage
Tissue/Position (including subcellular localization)
Reference
embryonic stage
organism
(Hwa et al., 2004)
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
epitope tag
Stage
Tissue/Position (including subcellular localization)
Reference

Comment: expression assayed in cultured cells

(Hwa et al., 2004)
mass spectroscopy
Stage
Tissue/Position (including subcellular localization)
Reference
adult stage
adult head
(Aradska et al., 2015)
day 7 of adulthood -- day 49 of adulthood
adult heart
(Cammarato et al., 2011)
Additional Descriptive Data

Expression of Tom20 protein colocalizes with immunoreactivity to cytochrome c, which is specific for the mitochondrial inner membrane space.

(Hwa et al., 2004)
Marker for
 
Subcellular Localization
CV Term
Evidence
References
located_in mitochondrion
inferred from direct assay
(Hwa et al., 2004)
inferred from high throughput direct assay
(Tan et al., 2009)
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

GBrowse - Visual display of RNA-Seq signals

View Dmel\Tom20 in GBrowse 2
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
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
FlyExpress - Embryonic expression images (BDGP data)
  • Stages(s) 4-6
  • Stages(s) 9-10
  • Stages(s) 11-12
  • Stages(s) 13-16
FlyBase Wiki
Image Based Resources
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 2 )
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 Tom20
Transgenic constructs containing regulatory region of Tom20
Aberrations (Deficiencies and Duplications) ( 0 )
Inferred from experimentation ( 0 )
Inferred from location ( 0 )
Alleles Representing Disease-Implicated Variants
Phenotypes
Orthologs
Downloads
Download All DIOPT Orthologs
Human Orthologs (via DIOPT v8.0)
Homo sapiens (Human) (2)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Source
Compara
eggNOG
Hieranoid
Homologene
Inparanoid
Isobase
OMA
OrthoDB
OrthoFinder
OrthoInspector
orthoMCL
Panther
Phylome
RoundUp
TreeFam
ZFIN
Alignment
Complementation?
Transgene?
Hsap\TOMM20
15 of 15
Yes
Yes
1  
Hsap\TOMM20L
8 of 15
No
No
1  
Model Organism Orthologs (via DIOPT v8.0)
Mus musculus (laboratory mouse) (2)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Source
Compara
eggNOG
Hieranoid
Homologene
Inparanoid
Isobase
OMA
OrthoDB
OrthoFinder
OrthoInspector
orthoMCL
Panther
Phylome
RoundUp
TreeFam
ZFIN
Alignment
Complementation?
Transgene?
Mmus\Tomm20
14 of 15
Yes
Yes
Mmus\Tomm20l
8 of 15
No
Yes
Rattus norvegicus (Norway rat) (2)
Rnor\Tomm20
13 of 13
Yes
Yes
Rnor\Tomm20l
2 of 13
No
Yes
Xenopus tropicalis (Western clawed frog) (1)
Xtro\tomm20
13 of 12
Yes
Yes
Danio rerio (Zebrafish) (2)
Drer\tomm20b
13 of 15
Yes
Yes
Drer\tomm20a
7 of 15
No
Yes
Caenorhabditis elegans (Nematode, roundworm) (2)
Cele\tomm-20
14 of 15
Yes
Yes
Cele\F32B4.2
3 of 15
No
Yes
Arabidopsis thaliana (thale-cress) (0)
No records found.
Saccharomyces cerevisiae (Brewer's yeast) (1)
Scer\TOM20
12 of 15
Yes
Yes
Schizosaccharomyces pombe (Fission yeast) (1)
Spom\tom20
9 of 12
Yes
Yes
Other Organism Orthologs (via OrthoDB)
Paralogs
Downloads
Download All DIOPT Paralogs
Paralogs (via DIOPT v8.0)
Drosophila melanogaster (Fruit fly) (1)
Gene Symbol
Score
Source
Compara
eggNOG
Homologene
Inparanoid
Isobase
OrthoDB
OrthoFinder
orthoMCL
Panther
RoundUp
Alignment
tomboy20
9 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 ( 0 )
    Human Ortholog
    Disease
    Evidence
    References
    Modifiers Based on Experimental Evidence ( 0 )
    Allele
    Disease
    Interaction
    References
    Disease Associations of Human Orthologs (via DIOPT v8.0 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?
    TOMM20; translocase of outer mitochondrial membrane 20
    15 of 15
    601848
         
        TOMM20L; translocase of outer mitochondrial membrane 20 like
        8 of 15
             
            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
            View in Interactions Browser
            Please see the Physical Interaction reports below for full details
            protein-protein
            Physical Interaction
            Assay
            References
            Tom20 - Pink1
            anti bait coimmunoprecipitation, western blot
            (Gehrke et al., 2015)
            Tom20 - clu
            anti bait coimmunoprecipitation, peptide massfingerprinting, western blot, anti tag western blot, anti tag coimmunoprecipitation
            (Sen et al., 2015)
            Tom20 - pum
            anti bait coimmunoprecipitation, western blot
            (Gehrke et al., 2015)
            Summary of Genetic Interactions
            esyN Network Diagram
            esyN Network Key:
            Suppression
            Enhancement
            View in Interactions Browser
            Please look at the allele data for full details of the genetic interactions
            Starting gene(s)
            Interaction type
            Interacting gene(s)
            Reference
            Tom20
            suppressible
            Pink1
            (Gehrke et al., 2015)
            Starting gene(s)
            Interaction type
            Interacting gene(s)
            Reference
            Pink1
            enhanceable
            Tom20
            (Gehrke et al., 2015)
            Pink1
            suppressible
            Tom20
            (Gehrke et al., 2015)
            External Data
            Linkouts
            DroID - A comprehensive database of gene and protein interactions.
            MIST (protein-protein) - An integrated Molecular Interaction Database
            Pathways
            Signaling Pathways (FlyBase)
            Metabolic Pathways
            FlyMet - A comprehensive tissue-specific metabolomics resource for Drosophila.
            External Data
            Linkouts
            Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
            Genomic Location and Detailed Mapping Data
            Chromosome (arm)
            3L
            Recombination map
            3-46
            Cytogenetic map
            76E1-76E1
            Sequence location
            FlyBase Computed Cytological Location
            Cytogenetic map
            Evidence for location
            76E1-76E1
            Limits computationally determined from genome sequence between P{lacW}l(3)L1243L1243&P{lacW}Mi-2j3D4 and P{PZ}eRF100103
            Experimentally Determined Cytological Location
            Cytogenetic map
            Notes
            References
            Experimentally Determined Recombination Data
            Location

            3-46

            (FlyBase, 2016)

            3-43.5

            (Comeron et al., 2012)
            Left of (cM)
            Right of (cM)
            Notes
            Stocks and Reagents
            Stocks (9)
            Genomic Clones (11)
             

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

            cDNA Clones (114)
             

            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 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
            DRSC - Results frm RNAi screens
            GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
            Antibody Information
            Laboratory Generated Antibodies
             

            polyclonal

            (Zhuang et al., 2016, Huang et al., 2015)
            Commercially Available Antibodies
             
            Other Information
            Relationship to Other Genes
            Source for database identify of

            Source for identity of: Tom20 CG7654

            (Hwa et al., 2004)
            Source for database merge of

            Source for merge of: Tom20 anon-WO0118547.225

            (FlyBase, 1996-)
            Additional comments

            Source for merge of Tom20 anon-WO0118547.225 was sequence comparison ( date:051113 ).

            (FlyBase, 1996-)
            Other Comments

            Area matching Drosophila EST AA246916 (inverted). This EST has sequence similarity to Mitochondrial import receptor genes.

            (Davies, 2001.3.15)
            Origin and Etymology
            Discoverer
            Etymology
            Identification
            External Crossreferences and Linkouts ( 41 )
            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
            Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
            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
            Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
            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
            FlyMet - A comprehensive tissue-specific metabolomics resource for Drosophila.
            GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
            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)
            modMine - A data warehouse for the modENCODE project
            Linkouts
            DroID - A comprehensive database of gene and protein interactions.
            DRSC - Results frm RNAi screens
            FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
            FlyMine - An integrated database for Drosophila genomics
            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 (9)
            Datasets (8)
            Study focus (0)
            Experimental Role
            Project
            Project Type
            Title
            Study result (8)
            Result
            Result Type
            Title
            scRNAseq_2020_Cattenoz_NI_seq_clustering
            Clustering analysis of hemocytes from non-infested third instar larvae
            scRNAseq_2020_Cattenoz_WI_seq_clustering
            Clustering analysis of hemocytes from wasp-infested third instar larvae
            scRNAseq_2020_Cho_NI72LG_seq_clustering
            Clustering analysis of lymph gland cells from non-infested larvae at 72 h after egg-laying
            scRNAseq_2020_Cho_NI96LG_seq_clustering
            Clustering analysis of lymph gland cells from non-infested larvae at 96 h after egg-laying
            scRNAseq_2020_Cho_NI120LG_seq_clustering
            Clustering analysis of lymph gland cells from non-infested larvae at 120 h after egg-laying
            scRNAseq_2020_Cho_WI96LG_seq_clustering
            Clustering analysis of lymph gland cells from wasp-infested larvae at 96 h after egg-laying
            scRNAseq_2020_Cho_NI96HL_seq_clustering
            Clustering analysis of circulating hemocytes from non-infested larvae at 96 h after egg-laying
            scRNAseq_2020_Cho_NI120HL_seq_clustering
            Clustering analysis of circulating hemocytes from non-infested larvae at 120 h after egg-laying
            References (59)