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General Information
Symbol
Dmel\Ote
Species
D. melanogaster
Name
Otefin
Annotation Symbol
CG5581
Feature Type
FlyBase ID
FBgn0266420
Gene Model Status
Stock Availability
Gene Snapshot
Otefin (Ote) encodes a nuclear membrane-associated protein that acts in concert with BMP/Dpp signaling to mediate bam transcriptional silencing. Its roles include oogenesis and germline stem cell self-renewal and differentiation. [Date last reviewed: 2019-03-14]
Also Known As
hal
Key Links
Genomic Location
Cytogenetic map
Sequence location
2R:18,275,607..18,277,177 [-]
Recombination map
2-85
Sequence
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
GO Summary Ribbons
Protein Family (UniProt)
-
Molecular Function (GO)
[Detailed GO annotations]
Experimental Evidence
Predictions / Assertions
-
Summaries
Pathway (FlyBase)
Positive Regulators of BMP Signaling Pathway -
Positive regulators of Bone Morphogenetic Protein (BMP) signaling up-regulate the pathway, ultimately resulting in the increased nuclear activity of the Mad/Med transcription factor complex.
Protein Function (UniProtKB)
Inner nuclear membrane protein (PubMed:2186029, PubMed:9199347, PubMed:18410727, PubMed:22751930). Involved in the attachment of membrane vesicles to chromatin during nuclear assembly, and is probably required for centrosome maturation and cell cycle progression during mitosis (PubMed:9199347, PubMed:22751930). Essential for differentiation of certain tissues and the maintenance of progenitor cell populations (PubMed:18410727, PubMed:24700158, PubMed:23806619, PubMed:27174470). Required for the differentiation and maintenance of male and female germline stem cells (GSCs), as well as the maintenance of somatic cells in the GSC niche (PubMed:18410727, PubMed:23806619, PubMed:27174470). This role is likely to be independent of the BMP (Dpp) pathway that negatively regulates bam transcription during GSC differentiation (PubMed:18410727, PubMed:23806619). During development, plays essential and redundant functions with the other LEM domain proteins; bocks and MAN1 (PubMed:24700158). Also has a redundant but important role with bocks during larval development (PubMed:24700158).
(UniProt, P20240)
Summary (Interactive Fly)
a nuclear lamin that is essential for germline stem cell maintenance - physically interacts with Medea/Smad4 at the silencer element to regulate GSC fate
Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the GBrowse view of Dmel\Ote or the JBrowse view of Dmel\Ote 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 5.50
Gene model reviewed during 5.44
Gene model reviewed during 5.39
Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0086768
1571
424
Additional Transcript Data and Comments
Reported size (kB)
1.6 (northern blot)
Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
RefSeq ID
GenBank
FBpp0085947
46.6
424
9.99
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)
406 (aa); 45 (kD predicted)
53 (kD observed)
Comments
External Data
Subunit Structure (UniProtKB)
Interacts with Med (PubMed:18410727). Interacts with Lam (PubMed:9632815, PubMed:22751930). Interacts with aurA, alphaTub84B, gammaTub23C and gammaTub37C (PubMed:22751930).
(UniProt, P20240)
Post Translational Modification
Phosphorylation at Thr-63 by aurA may be required for exit from mitosis (PubMed:22751930). May be phosphorylated by Cdk1 and Pka-C1 (PubMed:9199347).
(UniProt, P20240)
Crossreferences
InterPro - A database of protein families, domains and functional sites
Linkouts
Sequences Consistent with the Gene Model
Nucleotide / Polypeptide Records
 
Mapped Features

Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\Ote 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 (14 terms)
Molecular Function (3 terms)
Terms Based on Experimental Evidence (3 terms)
CV Term
Evidence
References
inferred from physical interaction with FLYBASE:Lam; FB:FBgn0002525
Terms Based on Predictions or Assertions (0 terms)
Biological Process (6 terms)
Terms Based on Experimental Evidence (6 terms)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (0 terms)
Cellular Component (5 terms)
Terms Based on Experimental Evidence (5 terms)
CV Term
Evidence
References
inferred from high throughput direct assay
inferred from direct assay
(assigned by UniProt )
inferred from direct assay
inferred from direct assay
Terms Based on Predictions or Assertions (0 terms)
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
Polypeptide Expression
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
mass spectroscopy
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
Using EM immunogold labeling, Ote protein was localized to the nucleoplasmic side of the inner nuclear membrane.
Between stages S4 and S6-S7 of oogenesis, Ote protein localizes to the nuclear envelope of nurse cells, follicle cells and oocytes, but after stage S6-S7, nucleoplasmic and cytoplasmic accumulation is also observed. During embryogenesis, Ote protein is associated with the nucleus as well as with nonnuclear membrane vesicles. Like Lam protein, Ote protein is detected in the nuclei of most cells during larval, pupal and adult stages. Neither protein is detected in stages 6-11 of spermiogenesis. In larval and adult tissues, Ote pr tein localizes to the nuclear envelope.
Ote protein is detected at high levels in embryos and during pupation. In embryos and tissue culture cells, Ote protein localizes to the periphery of the nucleus.
Marker for
 
Subcellular Localization
CV Term
Evidence
References
inferred from high throughput direct assay
inferred from direct assay
(assigned by UniProt )
inferred from direct assay
inferred from direct assay
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

GBrowse - Visual display of RNA-Seq signals

View Dmel\Ote 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
Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
Images
Alleles, Insertions, and Transgenic Constructs
Classical and Insertion Alleles ( 6 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 18 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Ote
Transgenic constructs containing regulatory region of Ote
Deletions and Duplications ( 4 )
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 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) ( EOG09190BFK )
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 persimilis
Drosophila willistoni
Drosophila willistoni
Drosophila virilis
Drosophila mojavensis
Drosophila grimshawi
Orthologs in non-Drosophila Dipterans (via OrthoDB v9.1) ( None identified )
No non-Drosophilid orthologies identified
Orthologs in non-Dipteran Insects (via OrthoDB v9.1) ( None identified )
No non-Dipteran orthologies identified
Orthologs in non-Insect Arthropods (via OrthoDB v9.1) ( None identified )
No non-Insect Arthropod orthologies identified
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) (1)
1 of 10
Human Disease Associations
FlyBase Human Disease Model Reports
    Disease Model Summary Ribbon
    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
    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
    Show neighbor-neighbor interactions:
    Select Layout:
    Legend:
    Protein
    RNA
    Selected Interactor(s)
    Interactions Browser

    Please see the Physical Interaction reports below for full details
    protein-protein
    Physical Interaction
    Assay
    References
    Summary of Genetic Interactions
    esyN Network Diagram
    esyN Network Key:
    Suppression
    Enhancement

    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 Med (PubMed:18410727). Interacts with Lam (PubMed:9632815, PubMed:22751930). Interacts with aurA, alphaTub84B, gammaTub23C and gammaTub37C (PubMed:22751930).
    (UniProt, P20240 )
    Linkouts
    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
    Gene Group - Pathway Membership (FlyBase)
    Positive Regulators of BMP Signaling Pathway -
    Positive regulators of Bone Morphogenetic Protein (BMP) signaling up-regulate the pathway, ultimately resulting in the increased nuclear activity of the Mad/Med transcription factor complex.
    External Data
    Linkouts
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    2R
    Recombination map
    2-85
    Cytogenetic map
    Sequence location
    2R:18,275,607..18,277,177 [-]
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    55A1-55A1
    Left limit from inclusion within Df(2R)PC4 (FBrf0054123) Right limit from non-inclusion within Df(2R)Pcl11B (FBrf0086812)
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    55C-55C
    (determined by in situ hybridisation)
    Experimentally Determined Recombination Data
    Location
    2-[86]
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (7)
    Genomic Clones (17)
     

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

    cDNA Clones (178)
     

    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)
      Other clones
      RNAi and Array Information
      Linkouts
      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: Ote hal
      Additional comments
      Other Comments
      Ote is required autonomously for the survival of germline stem cells and non-autonomously for the maintenance of their somatic niche in both males and females.
      The absence of Ote function does not cause female germ cell loss through activation of bam transcription. The primary defect in mutant female germline stem cells is a block of differentiation, which ultimately leads to germ cell death.
      Lam protein interacts with both Ote and fs(1)Ya in a yeast two-hybrid system.
      Ote behaves as a peripheral protein and is localised to the nucleoplasmic side of the nuclear envelope. Expression studies reveal the C-terminal 11 amino acid hydrophobic sequence is essential for targeting Ote to the nuclear periphery.
      Characterisation of Ote suggests an essential role in the assembly of the nuclear envelope.
      The hal locus affects early oogenesis: mutations cause the production of few, defective germ cells.
      Ote has been cloned and sequenced.
      Ote protein is not a component of nuclear pore complexes. Some Ote protein is apparently retained in an envelope-like structure throughout mitosis in early Drosophila embryos.
      Origin and Etymology
      Discoverer
      Etymology
      The name 'otefin' is a transliteration of the Hebrew word meaning 'envelopes'.
      Identification
      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/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.
      Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
      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.
      Linkouts
      DroID - A comprehensive database of gene and protein interactions.
      Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
      MIST (genetic) - An integrated Molecular Interaction Database
      MIST (protein-protein) - An integrated Molecular Interaction Database
      Synonyms and Secondary IDs (8)
      Reported As
      Secondary FlyBase IDs
      • FBgn0003022
      • FBgn0001173
      Datasets (0)
      Study focus (0)
      Experimental Role
      Project
      Project Type
      Title
      References (97)