FB2024_03 , released April 23, 2024
Gene: Dmel\Sgs1
Open Close
General Information
Symbol
Dmel\Sgs1
Species
D. melanogaster
Name
Salivary gland secretion 1
Annotation Symbol
CG3047
Feature Type
FlyBase ID
FBgn0003372
Gene Model Status
Stock Availability
Gene Summary
Contribute a Gene Snapshot for this gene.
Also Known As

Sgs-1, Sgs

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
2-14
RefSeq locus
NT_033779 REGION:4937409..4941423
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (4 terms)
Molecular Function (1 term)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
Biological Process (1 term)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
involved_in puparial adhesion
inferred from expression pattern
Terms Based on Predictions or Assertions (0 terms)
Cellular Component (2 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from direct assay
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from sequence model
Gene Group (FlyBase)
Protein Family (UniProt)
-
Protein Signatures (InterPro)
    -
    Summaries
    Gene Group (FlyBase)
    MUCINS -
    Mucin/mucin-like proteins are heavily O-glycosylated proteins characterized by proline, threonine and serine tandem repeats. Mucins form extracellular matrix networks or act as mucosal secretion lubricants. (Adapted from FBrf0205867.)
    GLUE PROTEINS -
    Salivary gland secretion genes encode proteins that make up the glue produced by Drosophila larvae that serves to attach the pupa to an external substrate during metamorphosis. (Adapted from FBrf0241323.)
    Phenotypic Description (Red Book; Lindsley and Zimm 1992)
    Sgs1
    Structural gene for the most slowly migrating of the salivary-gland glue proteins, SGS1 (Zhimulev and Kolesnikov, 1975, Wilhelm Roux's Arch. Entwickslungmech. Org. 178: 15-28).
    Gene Model and Products
    Number of Transcripts
    1
    Number of Unique Polypeptides
    1

    Please see the JBrowse view of Dmel\Sgs1 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 Q9VR49)

    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 5.43

    Gene model reviewed during 5.44

    Gene model reviewed during 5.48

    Sequence Ontology: Class of Gene
    Transcript Data
    Annotated Transcripts
    Name
    FlyBase ID
    RefSeq ID
    Length (nt)
    Assoc. CDS (aa)
    FBtr0077393
    3950
    1286
    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
    FBpp0077084
    134.9
    1286
    12.11
    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
    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\Sgs1 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).

    -0.19

    Transcript Expression
    northern blot
    Stage
    Tissue/Position (including subcellular localization)
    Reference
    RT-PCR
    Stage
    Tissue/Position (including subcellular localization)
    Reference
    Additional Descriptive Data

    Sgs1 transcripts are expressed exclusively in salivary glands of third instar larvae.

    Marker for
     
    Subcellular Localization
    CV Term
    Polypeptide Expression
    dissected tissue
    Stage
    Tissue/Position (including subcellular localization)
    Reference
    Additional Descriptive Data

    Relative to one another, expression of Sgs6+P is observed first, Sgs3-XP, Sgs4+P, Sgs5-XP next (106-120 hours after hatching) and Sgs1-XP last.

    Marker for
     
    Subcellular Localization
    CV Term
    Evidence
    References
    inferred from direct assay
    Expression Deduced from Reporters
    High-Throughput Expression Data
    Associated Tools

    JBrowse - Visual display of RNA-Seq signals

    View Dmel\Sgs1 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
    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
    Flygut - An atlas of the Drosophila adult midgut
    Images
    Alleles, Insertions, Transgenic Constructs, and Aberrations
    Classical and Insertion Alleles ( 10 )
    For All Classical and Insertion Alleles Show
     
    Other relevant insertions
    Transgenic Constructs ( 4 )
    For All Alleles Carried on Transgenic Constructs Show
    Transgenic constructs containing/affecting coding region of Sgs1
    Transgenic constructs containing regulatory region of Sgs1
    Aberrations (Deficiencies and Duplications) ( 4 )
    Inferred from experimentation ( 4 )
    Gene duplicated in
    Gene not disrupted in
    Inferred from location ( 0 )
    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
    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) (0)
    Model Organism Orthologs (via DIOPT v9.1)
    Species\Gene Symbol
    Score
    Best Score
    Best Reverse Score
    Alignment
    Complementation?
    Transgene?
    Rattus norvegicus (Norway rat) (0)
    Mus musculus (laboratory mouse) (0)
    Xenopus tropicalis (Western clawed frog) (0)
    Danio rerio (Zebrafish) (1)
    Caenorhabditis elegans (Nematode, roundworm) (0)
    Anopheles gambiae (African malaria mosquito) (1)
    Arabidopsis thaliana (thale-cress) (0)
    Saccharomyces cerevisiae (Brewer's yeast) (0)
    Schizosaccharomyces pombe (Fission yeast) (0)
    Escherichia coli (enterobacterium) (0)
    Other Organism Orthologs (via OrthoDB)
    Data provided directly from OrthoDB:Sgs1. Refer to their site for version information.
    Paralogs
    Paralogs (via DIOPT v9.1)
    Drosophila melanogaster (Fruit fly) (2)
    1 of 13
    1 of 13
    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 ( 0 )
      Allele
      Disease
      Interaction
      References
      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
      esyN Network Diagram
      Other Interaction Browsers
      Summary of Genetic Interactions
      esyN Network Diagram
      Other Interaction Browsers
      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
      Signaling Pathways (FlyBase)
      Metabolic Pathways
      External Data
      Linkouts
      Genomic Location and Detailed Mapping Data
      Chromosome (arm)
      2L
      Recombination map
      2-14
      Cytogenetic map
      Sequence location
      FlyBase Computed Cytological Location
      Cytogenetic map
      Evidence for location
      25B4-25B4
      Limits computationally determined from genome sequence between P{lacW}l(2)k10004k10004&P{EP}CG3036EP963 and P{PZ}l(2)0571405714
      Experimentally Determined Cytological Location
      Cytogenetic map
      Notes
      References
      25B1-25B3
      (determined by in situ hybridisation)
      Associated with the intermolt puff in 25B3-7.
      Experimentally Determined Recombination Data
      Location

      2-13.9

      Left of (cM)
      Right of (cM)
      Notes

      Mapping based on 64 dp-cl recombinants.

      Stocks and Reagents
      Stocks (5)
      Genomic Clones (11)
       

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

      cDNA Clones (1)
       

      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)
            BDGP DGC clones
              Other clones
                RNAi and Array Information
                Linkouts
                DRSC - Results frm RNAi screens
                Antibody Information
                Laboratory Generated Antibodies
                 
                Commercially Available Antibodies
                 
                Cell Line Information
                Publicly Available Cell Lines
                 
                  Other Stable Cell Lines
                   
                    Other Comments

                    Sgs1 encodes the most slowly migrating of the salivary-gland glue proteins. One of a group of seven genes encoding proteins that are components of the secretion produced by the larval salivary glands during the third instar for the purpose of attaching the larva to the substrate preparative to pupariation.

                    Cessation of Sgs1 transcription and puff regression are ecdysterone-dependent.

                    Initiation of transcription of Sgs1, but not of intermolt-puff formation seems to depend on the presence of suitable levels of ecdysterone in early third instar larvae.

                    Synthesis of the glue proteins begins about 106 h after egg deposition and ceases abruptly within a few minutes after the glue is released 14 h later.

                    Initiation of transcription of Sgs1 is coincident with the formation of the intermolt puffs in early to mid third instar.

                    Relationship to Other Genes
                    Source for database merge of
                    Additional comments
                    Nomenclature History
                    Source for database identify of
                    Nomenclature comments
                    Etymology
                    Synonyms and Secondary IDs (12)
                    Datasets (0)
                    Study focus (0)
                    Experimental Role
                    Project
                    Project Type
                    Title
                    Study result (0)
                    Result
                    Result Type
                    Title
                    External Crossreferences and Linkouts ( 25 )
                    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.
                    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
                    FlyMine - An integrated database for Drosophila genomics
                    KEGG Genes - Molecular building blocks of life in the genomic space.
                    MARRVEL_MODEL - MARRVEL (model organism gene)
                    Linkouts
                    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
                    Flygut - An atlas of the Drosophila adult midgut
                    References (70)