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sun stunted [ Drosophila melanogaster (fruit fly) ]

Gene ID: 44046, updated on 8-Apr-2026
Official Symbol
sunprovided by FlyBase
Official Full Name
stuntedprovided by FlyBase
Primary source
FLYBASE:FBgn0014391
Locus tag
Dmel_CG9032
See related
AllianceGenome:FB:FBgn0014391
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Drosophila melanogaster
Lineage
Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota; Neoptera; Endopterygota; Diptera; Brachycera; Muscomorpha; Ephydroidea; Drosophilidae; Drosophila; Sophophora
Also known as
ATP5E; ATPE; ATPsynepsilon; BcDNA:RE19513; BcDNA:RH48911; CG9032; Dmel\CG9032; l(1)13Fe; l(1)XV; Sun
Summary
Enables G protein-coupled receptor binding activity. Involved in determination of adult lifespan; positive regulation of G protein-coupled receptor signaling pathway; and response to oxidative stress. Located in extracellular space. Is expressed in adult head and adult heart. Human ortholog(s) of this gene implicated in mitochondrial complex V (ATP synthase) deficiency nuclear type 3. Orthologous to several human genes including ATP5F1E (ATP synthase F1 subunit epsilon). [provided by Alliance of Genome Resources, Jul 2025]
Orthologs
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Try the new Transcripts and proteins table
See sun in Genome Data Viewer
Location:
13F12-13F12; 1-52 cM
Exon count:
4
Annotation release Status Assembly Chr Location
Release 6.54 current Release 6 plus ISO1 MT (GCF_000001215.4) X NC_004354.4 (15847859..15849258, complement)
Release 5.57 previous assembly Release 5 (GCF_000001215.2) X NC_004354.3 (15741892..15743291, complement)

Chromosome X - NC_004354.4Genomic Context describing neighboring genes Neighboring gene Arginyl-tRNA synthetase Neighboring gene uncharacterized protein Neighboring gene Ubiquitin like 3 Neighboring gene uncharacterized protein Neighboring gene uncharacterized protein Neighboring gene Myb oncogene-like

Products Interactant Other Gene Complex Source Pubs Description

Gene Ontology Provided by FlyBase

Component Evidence Code Pubs
located_in extracellular region IDA
Inferred from Direct Assay
more info
PubMed 
is_active_in mitochondrial inner membrane IBA
Inferred from Biological aspect of Ancestor
more info
 
located_in mitochondrial inner membrane IEA
Inferred from Electronic Annotation
more info
 
is_active_in mitochondrial inner membrane NAS
Non-traceable Author Statement
more info
PubMed 
located_in mitochondrial inner membrane NAS
Non-traceable Author Statement
more info
PubMed 
part_of proton-transporting ATP synthase complex IEA
Inferred from Electronic Annotation
more info
 
part_of proton-transporting ATP synthase complex ISS
Inferred from Sequence or Structural Similarity
more info
 
part_of proton-transporting ATP synthase complex NAS
Non-traceable Author Statement
more info
PubMed 
Preferred Names
stunted
Names
ATP synthase epsilon chain
ATP synthase, epsilon subunit
CG9032-PA
CG9032-PB
F0/F1 ATP synthase epsilon
sun-PA
sun-PB

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

  1. NC_004354.4 Reference assembly

    Range
    15847859..15849258 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_079943.4NP_524682.1  stunted, isoform A

    See identical proteins and their annotated locations for NP_524682.1

    Status: REVIEWED

    UniProtKB/Swiss-Prot
    Q8IR24, Q9VXN2
    Related
    FBpp0073963
    Conserved Domains (1) summary
    pfam04627
    Location:250
    ATP-synt_Eps; Mitochondrial ATP synthase epsilon chain
  2. NM_167468.3NP_727905.1  stunted, isoform B

    See identical proteins and their annotated locations for NP_727905.1

    Status: REVIEWED

    UniProtKB/Swiss-Prot
    Q9VXN2
    Related
    FBpp0073964
    Conserved Domains (1) summary
    pfam04627
    Location:250
    ATP-synt_Eps; Mitochondrial ATP synthase epsilon chain