FB2026_03 , released September 17, 2026
Gene: Dmel\moi
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General Information
Symbol
Dmel\moi
Species
D. melanogaster
Name
modigliani
Annotation Symbol
CG42350
Feature Type
FlyBase ID
FBgn0261019
Gene Model Status
Stock Availability
Gene Summary
modigliani (moi) encodes a fast evolving, not evolutionary conserved, protein required for telomere maintenance. It is a member of terminin capping-complex that prevents telomere fusions. [Date last reviewed: 2019-03-14] (FlyBase Gene Snapshot)
Also Known As

l(3)S096713

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
3-62
RefSeq locus
NT_033777 REGION:18255530..18257677
Sequence
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (9 terms)
Molecular Function (2 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
inferred from physical interaction with UniProtKB:Q95RV2
inferred from direct assay
Terms Based on Predictions or Assertions (0 terms)
Biological Process (2 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
inferred from mutant phenotype
inferred from genetic interaction with FLYBASE:mei-41; FB:FBgn0004367
inferred from genetic interaction with FLYBASE:tefu; FB:FBgn0045035
involved_in telomere capping
inferred from mutant phenotype
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
involved_in telomere capping
inferred by curator from GO:0000782,GO:0043047
Cellular Component (5 terms)
Terms Based on Experimental Evidence (3 terms)
CV Term
Evidence
References
inferred from direct assay
inferred from direct assay
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
Gene Group / Complex (FlyBase)
Protein Family (UniProt)
-
Summaries
Gene Snapshot
modigliani (moi) encodes a fast evolving, not evolutionary conserved, protein required for telomere maintenance. It is a member of terminin capping-complex that prevents telomere fusions. [Date last reviewed: 2019-03-14]
Gene Group / Complex (FlyBase)
MTV COMPLEX -
The Moi-Tea-Ver (MTV) complex binds single-stranded DNA in a sequence independent manner, protecting the DNA from cleavage by endonucleases. Binds the HipHop-HOAP complex to form terminin telomere-capping complex which binds to chromosome ends in a sequence-independent manner and prevents telomere fusion. (Adapted from ComplexPortal.)
Protein Function (UniProtKB)
Part of the MTV complex that associates with the HipHop-HOAP complex to form the terminin telomere-capping complex involved in telomere maintenance and prevention of telomere fusion (PubMed:19240120, PubMed:27835648). Potentially functions downstream of mei-41/ATR (PubMed:19240120). As part of the MTV complex binds single stranded DNA in a sequence-independent manner, protecting it from degradation (PubMed:27835648).
(UniProt, B7Z0L8)
Summary (Interactive Fly)

a novel protein enriched at telomeres that is required to prevent telomeric fusion - forms a protein complex that is functionally analogous to shelterin

Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\moi 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 B7Z0L8)

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 5.52

Multiphase exon postulated: this gene shares a region of coding sequence with an overlapping gene, but different reading frames are utilized in the overlapping coding region.

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0299938
2089
178
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
FBpp0289215
20.2
178
9.27
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)

Probably homodimerizes (PubMed:15684427). Component of the MTV complex, composed of moi/modigliani, tea and ver/verrocchio (PubMed:27835648). Interacts with ver/verrochio and tea (via C-terminus); the interactions are direct and require fully intact moi/modigliani and ver/verrocchio (PubMed:20679394, PubMed:27835648). The MTV complex is recruited to telomeres by the HipHop-HOAP complex, consisting of HipHop, cav/HOAP and Su(var)205/HP1 to form the terminin telomere-capping complex (PubMed:19181850, PubMed:20679394, PubMed:27835648). Interacts with cav/HOAP and Su(var)205/HP1; the interactions are direct (PubMed:19181850). Probably interacts with peo (via N-terminus and UBC domain) (PubMed:26110638).

(UniProt, B7Z0L8)
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\moi 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).

NA

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

JBrowse - Visual display of RNA-Seq signals

View Dmel\moi 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
BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
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
Images
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 12 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 15 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of moi
Transgenic constructs containing regulatory region of moi
Aberrations (Deficiencies and Duplications) ( 4 )
Inferred from experimentation ( 4 )
Gene partially disrupted in
Inferred from location ( 5 )
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) (0)
Caenorhabditis elegans (Nematode, roundworm) (0)
Anopheles gambiae (African malaria mosquito) (1)
2 of 12
Yes
Yes
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:moi. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
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
    Summary of Genetic Interactions
    Interaction Browsers

    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)
    Probably homodimerizes (PubMed:15684427). Component of the MTV complex, composed of moi/modigliani, tea and ver/verrocchio (PubMed:27835648). Interacts with ver/verrochio and tea (via C-terminus); the interactions are direct and require fully intact moi/modigliani and ver/verrocchio (PubMed:20679394, PubMed:27835648). The MTV complex is recruited to telomeres by the HipHop-HOAP complex, consisting of HipHop, cav/HOAP and Su(var)205/HP1 to form the terminin telomere-capping complex (PubMed:19181850, PubMed:20679394, PubMed:27835648). Interacts with cav/HOAP and Su(var)205/HP1; the interactions are direct (PubMed:19181850). Probably interacts with peo (via N-terminus and UBC domain) (PubMed:26110638).
    (UniProt, B7Z0L8 )
    Linkouts
    DroID - A comprehensive database of gene and protein interactions.
    MIST (protein-protein) - An integrated Molecular Interaction Database
    Pathways
    Signaling Pathways (FlyBase)
    Metabolic Pathways
    FlyBase
    External Links
    External Data
    Linkouts
    Class of Gene
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    3R
    Recombination map
    3-62
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    90F11-90F11
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (4)
    Genomic Clones (22)
    cDNA Clones (14)
     

    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)
      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

          Mutant larvae have increased frequencies of telomeric fusions in brain cells.

          Relationship to Other Genes
          Source for database merge of

          Source for merge of: moi tlu

          Additional comments

          One or more of the processed transcripts for these genes contain two non-overlapping open reading frames (ORFs). The non-overlapping ORFs are represented by CG42350 (FBgn0259681), CG31241 (FBgn0051241).

          One or more of the processed transcripts for this gene encodes two overlapping ORFs in different reading frames, represented by tatl (downstream ORF) and moi (upstream ORF).

          Nomenclature History
          Source for database identify of

          Source for identity of: tlu CG42350

          Nomenclature comments

          FlyBase curator comment: In 2005, Komonyi et al. (FBrf0184045) referred to the original single CG31241 annotation, which produces a dicistronic transcript, as 'dtl'. In February 2009, Raffa et al. (FBrf0206682) characterized the upstream ORF, referring to it as 'moi' (which now has its own annotation ID of CG42350), and retained the 'dtl' designation for the downstream ORF (which now has its own annotation ID of CG44890). In March 2009, Komonyi et al. (FBrf0207599) also characterized the upstream ORF (CG42350) but retained the 'dtl'/'DTL' designation for it, while referring to the downstream ORF (CG44890) as 'TGS1'. In an attempt to reduce confusion, the upstream ORF (CG42350) is named 'moi' in FlyBase (according to FBrf0206682) and the downstream ORF (CG44890) is named 'Tsg1' in FlyBase (according to FBrf0207599), with 'dtl' being retained as a synonym of both.

          Etymology

          Named 'modigliani' after the name of an Italian train, because mutants exhibit multicentric linear chromosomes that resemble little 'trains' of chromosomes.

          Synonyms and Secondary IDs (18)
          Datasets (0)
          Study focus (0)
          Experimental Role
          Project
          Project Type
          Title
          Study result (0)
          Result
          Result Type
          Title
          External Crossreferences and Linkouts ( 21 )
          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 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/Swiss-Prot - Manually annotated and reviewed 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.
          BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
          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
          InterPro - A database of protein families, domains and functional sites
          KEGG Genes - Molecular building blocks of life in the genomic space.
          MARRVEL_MODEL - MARRVEL (model organism gene)
          Linkouts
          Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) 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.
          FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
          Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
          MIST (protein-protein) - An integrated Molecular Interaction Database
          References (42)