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General Information
Symbol
Dmel\Def
Species
D. melanogaster
Name
Defensin
Annotation Symbol
CG1385
Feature Type
FlyBase ID
FBgn0010385
Gene Model Status
Stock Availability
Gene Snapshot
Defensin (Def) encodes an antibacterial peptide with activity against Gram-positive bacteria. It is induced in the fat body during the systemic immune response and is expressed in various epithelia. The expression of Def is regulated at the transcriptional level by both the immune deficiency and Toll pathways. [Date last reviewed: 2019-03-07]
Also Known As
Dfn
Key Links
Genomic Location
Cytogenetic map
Sequence location
2R:10,054,178..10,054,576 [-]
Recombination map
2-61
Sequence
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
GO Summary Ribbons
Gene Group (FlyBase)
Protein Family (UniProt)
Belongs to the invertebrate defensin family. Type 1 subfamily. (P36192)
Molecular Function (GO)
[Detailed GO annotations]
Experimental Evidence
-
Predictions / Assertions
-
Summaries
Gene Group (FlyBase)
ANTIMICROBIAL PEPTIDES - OTHER -
Antimicrobial peptides (AMPs) are small secreted peptides with antifungal or antibacterial activity. AMPs are part of the innate immune response. The AMP-OTHER gene group encompasses AMPs that are single gene family members in D.mel. (Adapted from FBrf0241672.)
Protein Function (UniProtKB)
Responsible for the anti Gram-positive activity of immune hemolymph. Expressed in the absence of immune challenge during metamorphosis.
(UniProt, P36192)
Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the GBrowse view of Dmel\Def or the JBrowse view of Dmel\Def 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 5.49
Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0088432
399
92
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
FBpp0087518
10.2
92
7.44
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
Small Def-derived peptides identified by nano LC-MS/MS: VSDVDPIPEDHVL.
Small Def-derived peptides identified by nano LC-MS/MS: VSDVDPIPEDHVL, VHEDAHQEVLQHSRQ.
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\Def 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 (6 terms)
Molecular Function (0 terms)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (0 terms)
Biological Process (5 terms)
Terms Based on Experimental Evidence (4 terms)
CV Term
Evidence
References
inferred from expression pattern
inferred from direct assay
inferred from expression pattern
inferred from expression pattern
inferred from high throughput expression pattern
inferred from direct assay
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
inferred from sequence or structural similarity
inferred from biological aspect of ancestor with PANTHER:PTN001007287
(assigned by GO_Central )
Cellular Component (1 term)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000342060
(assigned by GO_Central )
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
expression microarray
Stage
Tissue/Position (including subcellular localization)
Reference
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
Def transcripts are detected in larvae and adults after infection with bacteria. They are detected at very low levels in pupae and adults in the absence of bacterial challenge.
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
mass spectroscopy
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

GBrowse - Visual display of RNA-Seq signals

View Dmel\Def 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
BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
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, and Transgenic Constructs
Classical and Insertion Alleles ( 2 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 6 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Def
Transgenic constructs containing regulatory region of Def
Deletions and Duplications ( 1 )
Phenotypes
Orthologs
Human Orthologs (via DIOPT v7.1)
Homo sapiens (Human) (0)
No records found.
Model Organism Orthologs (via DIOPT v7.1)
Mus musculus (laboratory mouse) (0)
No records found.
Rattus norvegicus (Norway rat) (0)
No records found.
Xenopus tropicalis (Western clawed frog) (0)
No records found.
Danio rerio (Zebrafish) (0)
No records found.
Caenorhabditis elegans (Nematode, roundworm) (0)
No records found.
Arabidopsis thaliana (thale-cress) (0)
No records found.
Saccharomyces cerevisiae (Brewer's yeast) (0)
No records found.
Schizosaccharomyces pombe (Fission yeast) (0)
No records found.
Orthologs in Drosophila Species (via OrthoDB v9.1) ( EOG09190JGL )
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 virilis
Drosophila mojavensis
Drosophila mojavensis
Drosophila grimshawi
Orthologs in non-Drosophila Dipterans (via OrthoDB v9.1) ( EOG09150HPR )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Musca domestica
House fly
Musca domestica
House fly
Musca domestica
House fly
Musca domestica
House fly
Musca domestica
House fly
Musca domestica
House fly
Musca domestica
House fly
Musca domestica
House fly
Musca domestica
House fly
Lucilia cuprina
Australian sheep blowfly
Lucilia cuprina
Australian sheep blowfly
Lucilia cuprina
Australian sheep blowfly
Mayetiola destructor
Hessian fly
Mayetiola destructor
Hessian fly
Aedes aegypti
Yellow fever mosquito
Aedes aegypti
Yellow fever mosquito
Aedes aegypti
Yellow fever mosquito
Aedes aegypti
Yellow fever mosquito
Anopheles darlingi
American malaria mosquito
Anopheles gambiae
Malaria mosquito
Anopheles gambiae
Malaria mosquito
Orthologs in non-Dipteran Insects (via OrthoDB v9.1) ( EOG090W0SBH )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Heliconius melpomene
Postman butterfly
Heliconius melpomene
Postman butterfly
Heliconius melpomene
Postman butterfly
Apis florea
Little honeybee
Apis florea
Little honeybee
Apis mellifera
Western honey bee
Apis mellifera
Western honey bee
Bombus impatiens
Common eastern bumble bee
Bombus terrestris
Buff-tailed bumblebee
Linepithema humile
Argentine ant
Megachile rotundata
Alfalfa leafcutting bee
Megachile rotundata
Alfalfa leafcutting bee
Nasonia vitripennis
Parasitic wasp
Nasonia vitripennis
Parasitic wasp
Nasonia vitripennis
Parasitic wasp
Nasonia vitripennis
Parasitic wasp
Nasonia vitripennis
Parasitic wasp
Dendroctonus ponderosae
Mountain pine beetle
Tribolium castaneum
Red flour beetle
Tribolium castaneum
Red flour beetle
Tribolium castaneum
Red flour beetle
Pediculus humanus
Human body louse
Pediculus humanus
Human body louse
Rhodnius prolixus
Kissing bug
Rhodnius prolixus
Kissing bug
Rhodnius prolixus
Kissing bug
Rhodnius prolixus
Kissing bug
Rhodnius prolixus
Kissing bug
Rhodnius prolixus
Kissing bug
Rhodnius prolixus
Kissing bug
Rhodnius prolixus
Kissing bug
Rhodnius prolixus
Kissing bug
Rhodnius prolixus
Kissing bug
Rhodnius prolixus
Kissing bug
Cimex lectularius
Bed bug
Cimex lectularius
Bed bug
Orthologs in non-Insect Arthropods (via OrthoDB v9.1) ( EOG090X0SPX )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Ixodes scapularis
Black-legged tick
Ixodes scapularis
Black-legged tick
Ixodes scapularis
Black-legged tick
Ixodes scapularis
Black-legged tick
Ixodes scapularis
Black-legged tick
Ixodes scapularis
Black-legged tick
Ixodes scapularis
Black-legged tick
Ixodes scapularis
Black-legged tick
Stegodyphus mimosarum
African social velvet spider
Stegodyphus mimosarum
African social velvet spider
Orthologs in non-Arthropod Metazoa (via OrthoDB v9.1) ( None identified )
No non-Arthropod Metazoa orthologies identified
Paralogs
Paralogs (via DIOPT v7.1)
Drosophila melanogaster (Fruit fly) (0)
No records found.
Human Disease Associations
FlyBase Human Disease Model Reports
    Disease Model Summary Ribbon
    Disease Ontology (DO) Annotations
    Models Based on Experimental Evidence ( 1 )
    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
    Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
     
    Disease Associations of Human Orthologs (via DIOPT v7.1 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
    esyN Network Diagram
    Interactions Browser
    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
    Linkouts
    DroID - A comprehensive database of gene and protein interactions.
    Pathways
    Gene Group - Pathway Membership (FlyBase)
    External Data
    Linkouts
    KEGG Pathways - Wiring diagrams of molecular interactions, reactions and relations.
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    2R
    Recombination map
    2-61
    Cytogenetic map
    Sequence location
    2R:10,054,178..10,054,576 [-]
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    46D9-46D9
    Limits computationally determined from genome sequence between P{lacW}Adamk13906&P{EP}Pka-R2EP2162 and P{PZ}14-3-3ζ07103
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    46C-46D
    (determined by in situ hybridisation)
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Right arm.
    Stocks and Reagents
    Stocks (4)
    Genomic Clones (16)
     

    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
    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
        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
        Commercially Available Antibodies
         
        Other Information
        Relationship to Other Genes
        Source for database identify of
        Source for database merge of
        Additional comments
        Other Comments
        Ecol\lacZDpt.PR adults are pricked with a sterile needle dipped in culture pellets of various living microorganisms (distinct bacterial strains, fungal spores or hyphae). Pricking results in a low but clearly detectable expression of all antimicrobial genes and these genes are induced above the background level by specific classes of microorganism.
        Genes encoding antibacterial peptides are regulated in a manner distinct from that of Drs, encoding the antifungal peptide.
        Def has been cloned and sequenced, and its expression pattern has been analysed.
        Origin and Etymology
        Discoverer
        Etymology
        Identification
        External Crossreferences and Linkouts ( 48 )
        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/Swiss-Prot - Manually annotated and reviewed records of protein sequence and functional information
        Other crossreferences
        BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
        Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
        Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
        Flygut - An atlas of the Drosophila adult midgut
        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.
        KEGG Pathways - Wiring diagrams of molecular interactions, reactions and relations.
        modMine - A data warehouse for the modENCODE project
        Linkouts
        DPiM - Drosophila Protein interaction map
        DroID - A comprehensive database of gene and protein interactions.
        DRSC - Results frm RNAi screens
        FLIGHT - Cell culture data for RNAi and other high-throughput technologies
        FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
        FlyMine - An integrated database for Drosophila genomics
        KEGG Pathways - Wiring diagrams of molecular interactions, reactions and relations.
        Synonyms and Secondary IDs (11)
        Reported As
        Symbol Synonym
        Defensin
        Name Synonyms
        Defensin
        (Parvy et al., 2019, Su et al., 2018, Westfall et al., 2018, Jones et al., 2017, Shokal and Eleftherianos, 2017, Kaynar et al., 2016, Xiong et al., 2016, Moskalev et al., 2015, Zhan et al., 2015, Bonnay et al., 2014, Haller et al., 2014, Ji et al., 2014, Tan et al., 2014, Taylor et al., 2014, Varma et al., 2014, Wang et al., 2014, Cao et al., 2013, Clark et al., 2013, Di Prisco et al., 2013, Oh et al., 2013, Eleftherianos and Castillo, 2012, Igboin et al., 2012, Longworth et al., 2012, Petersen et al., 2012, Wang et al., 2012, Akbar et al., 2011, Cheng et al., 2011, Clark et al., 2011, Narbonne-Reveau et al., 2011, Nehme et al., 2011, Schmidt et al., 2011, Wang et al., 2011, Wong et al., 2011, Becker et al., 2010, Fernández-Ayala et al., 2010, Matova and Anderson, 2010, Radyuk et al., 2010, Vuilleumier et al., 2010, Carpenter et al., 2009, Charroux and Royet, 2009, Costa et al., 2009, Gendrin et al., 2009, Helenius et al., 2009, Hill-Burns and Clark, 2009, Bergeret et al., 2008, Flatt et al., 2008, Gordon et al., 2008, Jin et al., 2008, Ryu et al., 2008, Tsai et al., 2008, Brennan et al., 2007, Dijkers and O'Farrell, 2007, Huh et al., 2007, Lai et al., 2007, Morozova et al., 2007, Tanji et al., 2007, Wu et al., 2007, Lazzaro et al., 2006, Leulier et al., 2006, Matova and Anderson, 2006, Tanji et al., 2006, Verleyen et al., 2006, Beckstead et al., 2005, Lazzaro et al., 2004, Roxstrom-Lindquist et al., 2004, Uvell and Engstrom, 2003, Ligoxygakis et al., 2002, Rutschmann et al., 2002, Luo et al., 2001, Rutschmann et al., 2000)
        Defensin precursor
        Secondary FlyBase IDs
          Datasets (0)
          Study focus (0)
          Experimental Role
          Project
          Project Type
          Title
          References (231)