FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Dmel\mats
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General Information
Symbol
Dmel\mats
Species
D. melanogaster
Name
mob as tumor suppressor
Annotation Symbol
CG13852
Feature Type
FlyBase ID
FBgn0038965
Gene Model Status
Stock Availability
Gene Summary
Coactivator of Warts (Wts) kinase in the Hippo/SWH (Sav/Wts/Hpo)signaling pathway, a signaling pathway that plays a pivotal role in organ size control and tumor suppression by restricting proliferation and promoting apoptosis. The core of this pathway is composed of a kinase cascade wherein Hippo (Hpo), in complex with its regulatory protein Salvador (Sav), phosphorylates and activates Warts (Wts) in complex with its regulatory protein Mats, which in turn phosphorylates and inactivates the Yorkie (Yki)oncoprotein. The Hippo/SWH signaling pathway inhibits the activity of the transcriptional complex formed by Scalloped (sd) and Yki and the target genes of this pathway include cyclin-E (cycE), diap1 and bantam. Mats is essential for early development and is required for proper chromosomal segregation in developing embryos. (UniProt, Q95RA8)
Contribute a Gene Snapshot for this gene.
Also Known As

Mob

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
3-74
RefSeq locus
NT_033777 REGION:22421161..22423302
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (14 terms)
Molecular Function (3 terms)
Terms Based on Experimental Evidence (3 terms)
CV Term
Evidence
References
inferred from physical interaction with UniProtKB:Q9VA38
inferred from physical interaction with UniProtKB:Q9NBK5
inferred from genetic interaction with FLYBASE:wts; FB:FBgn0011739
inferred from direct assay
inferred from physical interaction with FLYBASE:trc; FB:FBgn0003744
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000502949
Biological Process (6 terms)
Terms Based on Experimental Evidence (6 terms)
CV Term
Evidence
References
involved_in apoptotic process
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
involved_in hippo signaling
inferred from mutant phenotype
inferred from genetic interaction with FLYBASE:hpo; FB:FBgn0261456
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
involved_in hippo signaling
inferred from biological aspect of ancestor with PANTHER:PTN000503077
Cellular Component (5 terms)
Terms Based on Experimental Evidence (4 terms)
CV Term
Evidence
References
located_in centrosome
inferred from direct assay
located_in cytosol
inferred from direct assay
located_in nucleus
inferred from direct assay
located_in plasma membrane
inferred from direct assay
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
is_active_in cytoplasm
inferred from biological aspect of ancestor with PANTHER:PTN000502948
is_active_in nucleus
inferred from biological aspect of ancestor with PANTHER:PTN000502949
Gene Group (FlyBase)
Protein Family (UniProt)
Belongs to the MOB1/phocein family. (Q95RA8)
Summaries
Pathway (FlyBase)
HIPPO SIGNALING PATHWAY CORE COMPONENTS -
The Hippo signaling pathway is an intracellular kinase cascade in which hpo kinase in complex with sav, phosphorylates wts kinase which, in turn, phosphorylates yki transcriptional co-activator leading to its cytosolic retention. Activation of the Hippo pathway results in the down-regulation of cell proliferation and up-regulation of apoptosis, limiting tissue size. (Adapted from FBrf0224870).
Protein Function (UniProtKB)
Coactivator of Warts (Wts) kinase in the Hippo/SWH (Sav/Wts/Hpo)signaling pathway, a signaling pathway that plays a pivotal role in organ size control and tumor suppression by restricting proliferation and promoting apoptosis. The core of this pathway is composed of a kinase cascade wherein Hippo (Hpo), in complex with its regulatory protein Salvador (Sav), phosphorylates and activates Warts (Wts) in complex with its regulatory protein Mats, which in turn phosphorylates and inactivates the Yorkie (Yki)oncoprotein. The Hippo/SWH signaling pathway inhibits the activity of the transcriptional complex formed by Scalloped (sd) and Yki and the target genes of this pathway include cyclin-E (cycE), diap1 and bantam. Mats is essential for early development and is required for proper chromosomal segregation in developing embryos.
(UniProt, Q95RA8)
Summary (Interactive Fly)

physically associates with cell cycle regulator Warts to stimulate its catalytic activity and associates with tissue polarity factor Tricornered to regulate denticle development - activated by Hippo kinase for growth inhibition in Drosophila

Gene Model and Products
Number of Transcripts
3
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\mats 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 Q95RA8)

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 5.48

Gene model reviewed during 5.55

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0084229
1260
219
FBtr0337044
1716
219
FBtr0345205
1096
219
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
FBpp0083624
25.2
219
6.60
FBpp0307973
25.2
219
6.60
FBpp0311400
25.2
219
6.60
Polypeptides with Identical Sequences

The group(s) of polypeptides indicated below share identical sequence to each other.

219 aa isoforms: mats-PA, mats-PB, mats-PC
Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Subunit Structure (UniProtKB)

Interacts with and activates trc and wts.

(UniProt, Q95RA8)
Post Translational Modification

Phosphorylated by wts/mats kinase complex. Activated by phosphorylation by Hippo (Hpo) kinase which increases its affinity and its ability to activate Warts (Wts) kinase.

(UniProt, Q95RA8)
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\mats 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).

0.08

Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
organism

Comment: maternally deposited

RT-PCR
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

mats is expressed ubiquitously at a low level in third instar larval imaginal discs.

Marker for
 
Subcellular Localization
CV Term
Evidence
References
located_in centrosome
inferred from direct assay
located_in cytosol
inferred from direct assay
located_in nucleus
inferred from direct assay
located_in plasma membrane
inferred from direct assay
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\mats 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
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
Flygut - An atlas of the Drosophila adult midgut
Images
FlyExpress - Embryonic expression images (BDGP data)
  • Stages(s) 1-3
  • Stages(s) 4-6
  • Stages(s) 9-10
  • Stages(s) 11-12
  • Stages(s) 13-16
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 11 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 17 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of mats
Transgenic constructs containing regulatory region of mats
Aberrations (Deficiencies and Duplications) ( 2 )
Inferred from experimentation ( 2 )
Gene partially disrupted in
Inferred from location ( 7 )
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) (7)
14 of 14
Yes
Yes
13 of 14
No
Yes
 
5  
6 of 14
No
No
6 of 14
No
No
6 of 14
No
No
3 of 14
No
No
1 of 14
No
No
1  
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (7)
14 of 14
Yes
Yes
12 of 14
No
Yes
6 of 14
No
No
6 of 14
No
No
5 of 14
No
No
3 of 14
No
No
1 of 14
No
No
Mus musculus (laboratory mouse) (7)
14 of 14
Yes
Yes
13 of 14
No
Yes
6 of 14
No
No
6 of 14
No
No
5 of 14
No
No
3 of 14
No
No
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (8)
11 of 13
Yes
Yes
10 of 13
No
Yes
5 of 13
No
No
5 of 13
No
No
3 of 13
No
No
2 of 13
No
No
1 of 13
No
No
1 of 13
No
No
Danio rerio (Zebrafish) (9)
14 of 14
Yes
Yes
13 of 14
No
Yes
12 of 14
No
Yes
6 of 14
No
No
5 of 14
No
No
3 of 14
No
Yes
3 of 14
No
No
3 of 14
No
No
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (4)
7 of 14
Yes
Yes
6 of 14
No
No
2 of 14
No
No
1 of 14
No
No
Anopheles gambiae (African malaria mosquito) (4)
12 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (5)
13 of 13
Yes
Yes
13 of 13
Yes
Yes
8 of 13
No
Yes
4 of 13
No
Yes
1 of 13
No
Yes
Saccharomyces cerevisiae (Brewer's yeast) (2)
12 of 13
Yes
Yes
3 of 13
No
Yes
Schizosaccharomyces pombe (Fission yeast) (2)
11 of 12
Yes
Yes
3 of 12
No
Yes
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:mats. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (3)
10 of 13
4 of 13
3 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.
    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.
    Dmel gene
    Ortholog showing functional complementation
    Supporting References
    Interactions
    Summary of Physical Interactions
    Interaction Browsers

    Please see the Physical Interaction reports below for full details
    RNA-RNA
    Physical Interaction
    Assay
    References
    protein-protein
    Physical Interaction
    Assay
    References
    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)
    Interacts with and activates trc and wts.
    (UniProt, Q95RA8 )
    Linkouts
    BioGRID - A database of protein and genetic interactions.
    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
    Signaling Pathways (FlyBase)
    Metabolic Pathways
    FlyBase
    External Links
    External Data
    Linkouts
    KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
    Class of Gene
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    3R
    Recombination map
    3-74
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    94A12-94A12
    Limits computationally determined from genome sequence between P{PZ}l(3)rQ178rQ178 and P{lacW}Dph5L4910
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (10)
    Genomic Clones (2)
     

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

    cDNA Clones (21)
     

    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

        Area matching Drosophila EST AA201430.

        Relationship to Other Genes
        Source for database merge of

        Source for merge of: CG13852 anon-WO0118547.303

        Additional comments

        Source for merge of CG13852 anon-WO0118547.303 was sequence comparison ( date:051113 ).

        Nomenclature History
        Source for database identify of

        Source for identity of: CG13852 mats

        Nomenclature comments
        Etymology
        Synonyms and Secondary IDs (15)
        Reported As
        Symbol Synonym
        anon-WO0118547.303
        Secondary FlyBase IDs
        • FBgn0062109
        Datasets (1)
        Study focus (1)
        Experimental Role
        Project
        Project Type
        Title
        • bait_protein
        Interaction map generated by purification of Hippo pathway factors, with identification of copurifying proteins by mass spectrometry.
        Study result (0)
        Result
        Result Type
        Title
        External Crossreferences and Linkouts ( 51 )
        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/Swiss-Prot - Manually annotated and reviewed records of protein sequence and functional information
        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.
        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
        FlyMine - An integrated database for Drosophila genomics
        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
        BioGRID - A database of protein and genetic interactions.
        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.
        FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
        FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
        Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
        Flygut - An atlas of the Drosophila adult midgut
        iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
        Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
        KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
        MIST (genetic) - An integrated Molecular Interaction Database
        MIST (protein-protein) - An integrated Molecular Interaction Database
        References (168)