General Information
Symbol
Dmel\Ilp7
Species
D. melanogaster
Name
Insulin-like peptide 7
Annotation Symbol
CG13317
Feature Type
FlyBase ID
FBgn0044046
Gene Model Status
Stock Availability
Gene Snapshot
Insulin-like peptide 7 (Ilp7) encodes a secreted insulin-like peptide that binds to the receptor encoded by InR to activate the insulin signaling pathway. It is expressed by small populations of neurons and plays roles in female egg-site selection, sleep duration, and nutrient-dependent food intake and tracheal growth. [Date last reviewed: 2018-11-08]
Also Known As
dilp7, DILP, dilp-7, DILP 7
Genomic Location
Cytogenetic map
Sequence location
X:3,667,621..3,668,845 [+]
Recombination map
1-4
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 insulin family. (Q9W4Q9)
Molecular Function (see GO section for details)
Experimental Evidence
-
Predictions / Assertions
Summaries
Gene Group Membership
NEUROPEPTIDES -
Neuropeptides are secreted into the extracellular space where they interact with cell surface receptors (usually G protein coupled receptors). They are extremely diverse, acting as neurotransmitters, neuromodulators, hormones or growth factors. (Adapted from FBrf0211443 and PMID:27813667).
INSULIN-LIKE PEPTIDES -
The insulin superfamily consists of peptides such as vertebrate insulins, mammalian relaxin and insulin-like growth factors, and invertebrate insulin-like peptides (ILP). They are synthesized as pre-propeptides and processed to yield two peptides, A and B, linked by disulfide bonds. ILPs have been identified throughout invertebrate species. In D.mel, ILPs may function as peptide hormones and/or neuropeptides. They have been linked to the regulation of growth and development. (Adapted from FBrf0189697 and FBrf0152330).
Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the GBrowse view of Dmel\Ilp7 or the JBrowse view of Dmel\Ilp7 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 5.46
Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0070577
1044
159
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
FBpp0070552
18.8
159
8.28
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)
Heterodimer of a B chain and an A chain linked by two disulfide bonds.
(UniProt, Q9W4Q9)
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\Ilp7 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 (4 terms)
Molecular Function (2 terms)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
inferred from electronic annotation with InterPro:IPR016179
(assigned by InterPro )
inferred from sequence or structural similarity with HGNC:6081
Biological Process (1 term)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from sequence or structural similarity with HGNC:6081
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 sequence or structural similarity with HGNC:6081
Expression Data
Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
Transcript is detected ubiquitously in the embryo with higher levels in the midgut. Expression in third instar larvae is detected in ten cells in the ventral nervous system.
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
All post-embryonic Ilp7 neurons express Scer\GAL4VGlut-OK371, embryonic neurons are positive for odd and fkh and dMP2 ILP7 neuron of abdominal segment 6 are positive for abd-A while adult neurons that derive from these also express Scer\GAL4HGTX-GAL4. Neurons are positive for Abd-B at all stages although the latter is expressed at lower levels in dMP2 ILP7 neuron of abdominal segment 6 derived neurons in adults. Adult male postmitotic neurons are positive for VGlut and serotonin is expressed in a subset of adult male posterior abdominal ganglion neurons that innervate the seminal vesicle. All post-embryonic neurons express Scer\GAL4fru.P1.D.
Ilp7 is expressed in a group of neurons referred to as 'Ilp7 cells' whose cell bodies are located in the abdominal neuromere of the adult CNS, which terminate in the adult subesophageal ganglion.
Ilp7 protein can be first detected in embryos just prior to hatching, and is expressed in dMP2 ILP7 neurons through adulthood.
Ilp7 is strongly expressed in the single dMP2 neuron in abdominal segments A6-A9. It is stable expressed postmitotically in these neurons through the three larval instars and into adult. Axons of the posterior dMP2 neurons exit the ventral nerve cord in the posterior nerve at embryonic stage 16 and innervate the hindgut. Ilp7 staining is observed at nerve swellings throughout the length of these dMP2 fibres and at dMP2 terminals. Ilp7 is also expressed in a dorsal pair of neurons in A1 and three lateral pairs of neurons in A1-A3. Weak Ilp7 immunoreactivity is sometimes observed in a fourth lateral neuron per hemisegment in A4, a more anterior dorsal pair, and a neuron located at base of each brain hemisphere. The larval expression pattern is maintained in the adult abdominal ganglion with some remodeling occurring. Strong Ilp7 staining is also observed in the larval and adult hindgut.
In adults Ilp7 is expressed in neurons that send projections into the SOG, in a few cells in the distal segments of the thoracico-abdominal ganglion, and is expressed in the internal female reproductive tract.
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\Ilp7 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
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
Flygut - An atlas of the Drosophila adult midgut
Images
Alleles, Insertions, Transgenic Constructs and Phenotypes
Classical and Insertion Alleles ( 1 )
For All Classical and Insertion Alleles Show
 
Allele of Ilp7
Class
Mutagen
Associated Insertion
Stocks
Known lesion
Other relevant insertions
Transgenic Constructs ( 8 )
Deletions and Duplications ( 1 )
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) (0)
No orthologs reported.
Model Organism Orthologs (via DIOPT v7.1)
Mus musculus (laboratory mouse) (0)
No orthologs reported.
Rattus norvegicus (Norway rat) (0)
No orthologs reported.
Xenopus tropicalis (Western clawed frog) (0)
No orthologs reported.
Danio rerio (Zebrafish) (0)
No orthologs reported.
Caenorhabditis elegans (Nematode, roundworm) (0)
No orthologs reported.
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) ( EOG09190GRG )
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 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) ( EOG09150D0R )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Musca domestica
House fly
Glossina morsitans
Tsetse fly
Lucilia cuprina
Australian sheep blowfly
Aedes aegypti
Yellow fever mosquito
Anopheles darlingi
American malaria mosquito
Anopheles gambiae
Malaria mosquito
Culex quinquefasciatus
Southern house mosquito
Orthologs in non-Dipteran Insects (via OrthoDB v9.1) ( EOG090W0N7Z )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Tribolium castaneum
Red flour beetle
Zootermopsis nevadensis
Nevada dampwood termite
Orthologs in non-Insect Arthropods (via OrthoDB v9.1) ( EOG090X0NH1 )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Ixodes scapularis
Black-legged tick
Tetranychus urticae
Two-spotted spider mite
Orthologs in non-Arthropod Metazoa (via OrthoDB v9.1) ( None identified )
No non-Arthropod Metazoa orthologies identified
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
    Starting gene(s)
    Interaction type
    Interacting gene(s)
    Reference
    Starting gene(s)
    Interaction type
    Interacting gene(s)
    Reference
    External Data
    Subunit Structure (UniProtKB)
    Heterodimer of a B chain and an A chain linked by two disulfide bonds.
    (UniProt, Q9W4Q9 )
    Linkouts
    BioGRID - A database of protein and genetic interactions.
    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
    KEGG Pathways - Wiring diagrams of molecular interactions, reactions and relations.
    Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
    SignaLink - A signaling pathway resource with multi-layered regulatory networks.
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    X
    Recombination map
    1-4
    Cytogenetic map
    Sequence location
    X:3,667,621..3,668,845 [+]
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    3E2-3E2
    Limits computationally determined from genome sequence between P{EP}dncEP973 and P{EP}PargEP351
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (8)
    Genomic Clones (13)
     

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

    cDNA Clones (4)
     

    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
      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
        Commercially Available Antibodies
         
        Other Information
        Relationship to Other Genes
        Source for database identify of
        Source for database merge of
        Source for merge of: Ilp7 CG13317
        Additional comments
        Other Comments
        Origin and Etymology
        Discoverer
        Etymology
        Identification
        External Crossreferences and Linkouts ( 24 )
        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 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
        Other crossreferences
        InterPro - A database of protein families, domains and functional sites
        KEGG Pathways - Wiring diagrams of molecular interactions, reactions and relations.
        Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
        Linkouts
        BioGRID - A database of protein and genetic interactions.
        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
        FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
        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)
        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
        SignaLink - A signaling pathway resource with multi-layered regulatory networks.
        Synonyms and Secondary IDs (21)
        Reported As
        Symbol Synonym
        Name Synonyms
        Drosophila insulin-like peptide 7
        Ilp7
        Insulin-like peptide 7
        insulin-like peptide
        Secondary FlyBase IDs
        • FBgn0029673
        Datasets (0)
        Study focus (0)
        Experimental Role
        Project
        Project Type
        Title
        References (87)