FB2025_05 , released December 11, 2025
Gene: Dmel\Atg13
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General Information
Symbol
Dmel\Atg13
Species
D. melanogaster
Name
Autophagy-related 13
Annotation Symbol
CG7331
Feature Type
FlyBase ID
FBgn0261108
Gene Model Status
Stock Availability
Gene Summary
Autophagy-related 13 (Atg13) encodes a subunit of the evolutionarily conserved Atg1 kinase complex, which controls the initiation of autophagosome formation. [Date last reviewed: 2019-03-07] (FlyBase Gene Snapshot)
Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
3-48
RefSeq locus
NT_033777 REGION:8349815..8352817
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (15 terms)
Molecular Function (2 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from physical interaction with FLYBASE:Atg101; FB:FBgn0030960
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from sequence or structural similarity with SGD:S000006389
inferred from biological aspect of ancestor with PANTHER:PTN001268151
Biological Process (9 terms)
Terms Based on Experimental Evidence (4 terms)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (5 terms)
CV Term
Evidence
References
inferred from electronic annotation with InterPro:IPR040182
involved_in autophagy
inferred from electronic annotation with InterPro:IPR018731
involved_in mitophagy
inferred from biological aspect of ancestor with PANTHER:PTN001268151
inferred from biological aspect of ancestor with PANTHER:PTN001268151
Cellular Component (4 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (4 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN001268151
inferred from electronic annotation with InterPro:IPR018731
is_active_in autophagosome
inferred from biological aspect of ancestor with PANTHER:PTN001268151
is_active_in cytosol
inferred from biological aspect of ancestor with PANTHER:PTN001268151
inferred from biological aspect of ancestor with PANTHER:PTN001268151
Protein Family (UniProt)
Belongs to the ATG13 family. Metazoan subfamily. (Q9VHR6)
Summaries
Gene Snapshot
Autophagy-related 13 (Atg13) encodes a subunit of the evolutionarily conserved Atg1 kinase complex, which controls the initiation of autophagosome formation. [Date last reviewed: 2019-03-07]
Gene Group (FlyBase)
AUTOPHAGY-RELATED GENES -
The Autophagy-related genes (Atg), characterized extensively in yeast, are a set of approximately twenty evolutionarily conserved genes required for autophagy. Autophagy (specifically, macroautophagy) is the process of bulk degradation of cytoplasmic material. It takes place by the assembly of a double membrane vesicle, the autophagosome, which delivers cargo to the lysosome for recycling. (Adapted from FBrf0219844 and FBrf020902).
ATG1 PROTEIN KINASE COMPLEX -
The Atg1 protein kinase complex, is an autophagy-specific complex of the Atg1 Ser/Thr kinase and regulatory subunits. It is required in the early biogenesis of the autophagosome. (Adapted from FBrf0219844 and PMID:23999079).
Protein Function (UniProtKB)
Autophagy factor required for autophagosome formation. Target of the TOR kinase signaling pathway that regulates autophagy through the control of the phosphorylation status of Atg13 and Atg1. The Atg1-Atg13 complex functions at multiple levels to mediate and adjust nutrient-dependent autophagic signaling. Involved in the autophagic degradation of dBruce which controls DNA fragmentation in nurse cells.
(UniProt, Q9VHR6)
Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\Atg13 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 Q9VHR6)

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 5.49

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0081843
3003
523
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
FBpp0081333
56.9
523
6.74
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)
Comments
External Data
Subunit Structure (UniProtKB)

Interacts with Atg1.

(UniProt, Q9VHR6)
Post Translational Modification

Phosphorylated in a nutrient-, TOR- and Atg1 kinase-dependent manner.

(UniProt, Q9VHR6)
Crossreferences
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\Atg13 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).

-0.50

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

Comment: maternally deposited

Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
western blot
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Evidence
References
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\Atg13 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 ( 12 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Atg13
Transgenic constructs containing regulatory region of Atg13
Aberrations (Deficiencies and Duplications) ( 1 )
Inferred from experimentation ( 1 )
Inferred from location ( 6 )
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) (1)
11 of 14
Yes
Yes
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (1)
10 of 14
Yes
Yes
Mus musculus (laboratory mouse) (1)
10 of 14
Yes
Yes
Xenopus tropicalis (Western clawed frog) (2)
8 of 13
Yes
Yes
1 of 13
No
No
Danio rerio (Zebrafish) (1)
11 of 14
Yes
Yes
Caenorhabditis elegans (Nematode, roundworm) (1)
7 of 14
Yes
Yes
Anopheles gambiae (African malaria mosquito) (1)
11 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (2)
3 of 13
Yes
Yes
2 of 13
No
Yes
Saccharomyces cerevisiae (Brewer's yeast) (1)
2 of 13
Yes
Yes
Schizosaccharomyces pombe (Fission yeast) (1)
2 of 12
Yes
Yes
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:Atg13. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
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 ( 0 )
    Human Ortholog
    Disease
    Evidence
    References
    Modifiers Based on Experimental Evidence ( 4 )
    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
    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 Atg1.
    (UniProt, Q9VHR6 )
    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.
    Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
    Class of Gene
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    3R
    Recombination map
    3-48
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    84F13-84F14
    Limits computationally determined from genome sequence between P{EP}EP833 and P{lacW}l(3)L4740L4740
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (9)
    Genomic Clones (12)
     

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

    cDNA Clones (149)
     

    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)
    Other clones
    RNAi and Array Information
    Linkouts
    DRSC - Results frm RNAi screens
    Antibody Information
    Laboratory Generated Antibodies
     

    polyclonal

    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

        Source for merge of: Atg13 CG7331

        Source for merge of: CG7331 BcDNA:HL01508

        Additional comments

        Source for merge of CG7331 BcDNA:HL01508 was a shared cDNA ( date:030728 ).

        Nomenclature History
        Source for database identify of
        Nomenclature comments
        Etymology
        Synonyms and Secondary IDs (9)
        Reported As
        Symbol Synonym
        Atg13
        (Lee and Kim, 2025, Li et al., 2025, Zhang et al., 2025, Umargamwala et al., 2024, Cobb et al., 2023, Demir and Kacew, 2023, Muita and Baxter, 2023, Sharpe et al., 2023, Tang et al., 2023, Zhao et al., 2023, Zheng et al., 2023, Huang et al., 2022, Ishii et al., 2022, Li et al., 2022, Palozzi et al., 2022, Zhao et al., 2022, Cho and Jiang, 2021, Girard et al., 2021, Jacomin et al., 2021, Barthez et al., 2020, Cunningham et al., 2020, Gohel et al., 2020, Jacomin et al., 2020, Sênos Demarco et al., 2020, Zhuang et al., 2020, Aparicio et al., 2019, Bhattacharjee et al., 2019, Khezri and Rusten, 2019, Meltzer et al., 2019, Xu et al., 2019, Yan et al., 2019, Billes et al., 2018, Liu et al., 2018, O'Keefe and Denton, 2018, Richardson and Portela, 2018, Velentzas et al., 2018, Galluzzi et al., 2017, Kim et al., 2017, Lin et al., 2017, Lo Piccolo et al., 2017, Manent et al., 2017, Péan et al., 2017, Transgenic RNAi Project members, 2017-, Tusco et al., 2017, Wen et al., 2017, Braden and Neufeld, 2016, Danielsen et al., 2016, Kuleesha et al., 2016, Mao et al., 2016, Schmid et al., 2016, Denton et al., 2015, Kim et al., 2015, Kim et al., 2015, Nagy et al., 2015, Xu et al., 2015, Zhang and Baehrecke, 2015, Zirin et al., 2015, Alers et al., 2014, Banreti et al., 2014, Hegedűs et al., 2014, Morelli et al., 2014, Mulakkal et al., 2014, Nagy et al., 2014, Chang et al., 2013, Kim et al., 2013, Moy and Cherry, 2013, Shravage et al., 2013, Érdi et al., 2012, Pircs et al., 2012, Barth et al., 2011, Chang and Neufeld, 2010, Liu and Lu, 2010, Zirin and Perrimon, 2010, Chang and Neufeld, 2009, Chang and Neufeld, 2009, Chang and Neufeld, 2008)
        BcDNA:HL01508
        Name Synonyms
        Autophagy-related 13
        Autophagy-specific gene 13
        CG7331
        Secondary FlyBase IDs
        • FBgn0259122
        • FBgn0037582
        • FBgn0047245
        Datasets (0)
        Study focus (0)
        Experimental Role
        Project
        Project Type
        Title
        Study result (0)
        Result
        Result Type
        Title
        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/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.
        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
        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
        FlyMet - A comprehensive tissue-specific metabolomics resource for Drosophila.
        iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
        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
        Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
        References (138)