FB2024_04 , released June 25, 2024
Gene: Dmel\Mipp1
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General Information
Symbol
Dmel\Mipp1
Species
D. melanogaster
Name
Multiple inositol polyphosphate phosphatase 1
Annotation Symbol
CG4123
Feature Type
FlyBase ID
FBgn0026061
Gene Model Status
Stock Availability
Enzyme Name (EC)
acid phosphatase (3.1.3.2)
2,3-bisphosphoglycerate 3-phosphatase (3.1.3.80)
Gene Summary
Multiple inositol polyphosphate phosphatase 1 (Mipp1) encodes a highly conserved extracellular enzyme that removes phosphates from inositol polyphosphates (IP6, IP5 and IP4) to form IP3. The Mipp1 product functions extracellularly to promote filopodia formation. Its enzymatic activity and localization are both key during tracheal cell migration. [Date last reviewed: 2018-10-18] (FlyBase Gene Snapshot)
Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
3-44
RefSeq locus
NT_037436 REGION:16563448..16573334
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (11 terms)
Molecular Function (4 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (4 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN001076439
inferred from sequence or structural similarity with UniProtKB:Q9UNW1
inferred from electronic annotation with InterPro:IPR016274
Biological Process (3 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
inferred from mutant phenotype
inferred from mutant phenotype
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
involved_in dephosphorylation
inferred from sequence or structural similarity with UniProtKB:Q9UNW1
Cellular Component (4 terms)
Terms Based on Experimental Evidence (3 terms)
CV Term
Evidence
References
inferred from direct assay
located_in filopodium
inferred from direct assay
located_in plasma membrane
inferred from high throughput direct assay
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from sequence or structural similarity with UniProtKB:Q9UNW1
Protein Family (UniProt)
Belongs to the histidine acid phosphatase family. MINPP1 subfamily. (Q9VV72)
Catalytic Activity (EC/Rhea)
acid phosphatase activity
a phosphate monoester + H2O = an alcohol + phosphate (3.1.3.2)
bisphosphoglycerate 3-phosphatase activity
(2R)-2,3-bisphosphoglycerate + H2O = (2R)-2-phosphoglycerate + phosphate (3.1.3.80)
RHEA 27381:
Summaries
Gene Snapshot
Multiple inositol polyphosphate phosphatase 1 (Mipp1) encodes a highly conserved extracellular enzyme that removes phosphates from inositol polyphosphates (IP6, IP5 and IP4) to form IP3. The Mipp1 product functions extracellularly to promote filopodia formation. Its enzymatic activity and localization are both key during tracheal cell migration. [Date last reviewed: 2018-10-18]
Gene Group (FlyBase)
PHOSPHATIDYLINOSITOL PHOSPHATE AND INOSITOL PHOSPHATE PHOSPHATASES -
Phosphoinositide phosphate (PtdInsP) phosphatases and Inositol phosphate (InsP) phosphatases are enzymes that catalyze the hydrolysis of phosphate groups from inositol. Many of these phosphatases can act on both PtdInsP and InsP substrates. (Adapted from PMID:23681533).
ACID PHOSPHATASES -
Acid phosphatases catalyse the hydrolysis of orthophosphate monoesters under acidic conditions. Their precise functional roles are largely unknown. (Adapted from PMID:11950951.)
Protein Function (UniProtKB)
Probable multiple inositol polyphosphate phosphatase that hydrolyzes 1D-myo-inositol 1,3,4,5,6-pentakisphosphate (InsP5[2OH]) and 1D-myo-inositol hexakisphosphate (InsP6) to a range of less phosphorylated inositol phosphates. This regulates the availability of these various small molecule second messengers and metal chelators which control many aspects of cell physiology (PubMed:26628373). May have a dual substrate specificity, and function as a 2,3-bisphosphoglycerate 3-phosphatase hydrolyzing 2,3-bisphosphoglycerate to 2-phosphoglycerate. 2,3-bisphosphoglycerate (BPG) is formed as part of the Rapoport-Luebering glycolytic bypass (By similarity). Has a role in embryonic tracheal development where it localizes to the leading edge of actively migrating branches (PubMed:26628373). In these leading cells, enhances formation and/or maintenance of filopodia which may drive branch migration and elongation by cell-cell intercalation (PubMed:26628373). The function in tracheal morphogenesis is dependent on its inositol polyphosphate phosphatase activity (PubMed:26628373).
(UniProt, Q9VV72)
Gene Model and Products
Number of Transcripts
3
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\Mipp1 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 Q9VV72)

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 5.55

Annotated transcripts do not represent all supported alternative splices within 5' UTR.

Gene model reviewed during 5.45

Low-frequency RNA-Seq exon junction(s) not annotated.

Gene model reviewed during 5.56

Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0075399
1828
467
FBtr0075398
1769
467
FBtr0345813
2009
467
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
FBpp0075157
53.6
467
6.72
FBpp0075156
53.6
467
6.72
Polypeptides with Identical Sequences

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

467 aa isoforms: Mipp1-PA, Mipp1-PB, Mipp1-PC
Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Post Translational Modification

N-glycosylated.

(UniProt, Q9VV72)
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\Mipp1 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).

-0.65

Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
dorsal ectoderm anlage

Comment: anlage in statu nascendi

ventral ectoderm anlage

Comment: anlage in statu nascendi

Additional Descriptive Data

Mipp1 transcripts are expressed in all tracheal cells from embryonic stage 10-13. In stages 13-15, it is diminished in the dorsal trunk but remains in the dorsal branch, visceral branch, ganglionic branch, and lateral trunk. During stages 10-12, transcripts are located in small puncta throughout the cytoplasm but in stages 13-15, they accumulate in large foci localized to particular regions in each cell type. It appears that the Mipp1 transcripts are A is maintained in migrating branches with enrichment at regions where extensive filopodia form.

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

Mipp1 protein expression parallels Mipp1 transcript expression in embryonic tracheal cells. It localizes to the membrane to structures that appear to be filopodea.

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

JBrowse - Visual display of RNA-Seq signals

View Dmel\Mipp1 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) 4-6
  • Stages(s) 7-8
  • Stages(s) 9-10
  • Stages(s) 11-12
  • Stages(s) 13-16
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 6 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 8 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Mipp1
Transgenic constructs containing regulatory region of Mipp1
Aberrations (Deficiencies and Duplications) ( 0 )
Inferred from experimentation ( 0 )
Inferred from location ( 0 )
Variants
Variant Molecular Consequences
Alleles Representing Disease-Implicated Variants
Phenotypes
Orthologs
Human Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Homo sapiens (Human) (2)
12 of 14
Yes
No
1 of 14
No
No
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (4)
11 of 14
Yes
No
9 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Mus musculus (laboratory mouse) (3)
10 of 14
Yes
No
1 of 14
No
No
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (4)
8 of 13
Yes
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
Danio rerio (Zebrafish) (3)
12 of 14
Yes
No
11 of 14
No
No
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (1)
1 of 14
Yes
No
Anopheles gambiae (African malaria mosquito) (2)
12 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (1)
11 of 13
Yes
No
Saccharomyces cerevisiae (Brewer's yeast) (5)
6 of 13
Yes
Yes
6 of 13
Yes
Yes
6 of 13
Yes
Yes
6 of 13
Yes
Yes
6 of 13
Yes
Yes
Schizosaccharomyces pombe (Fission yeast) (4)
8 of 12
Yes
Yes
8 of 12
Yes
Yes
8 of 12
Yes
Yes
1 of 12
No
No
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:Mipp1. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (2)
12 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 ( 2 )
    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.
    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
    FlyCyc Pathways - Pathways from a BioCyc PGDB for Dmel
    KEGG Metabolic Pathways - A collection of manually drawn metabolic pathway maps representing knowledge of molecular interaction, reaction and relation networks.
    External Data
    Linkouts
    KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    3L
    Recombination map
    3-44
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    73A7-73A9
    Limits computationally determined from genome sequence between P{lacW}l(3)j10E8j10E8&P{PZ}l(3)1053210532 and P{PZ}Baldspot02281
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (12)
    Genomic Clones (16)
     

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

    cDNA Clones (144)
     

    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
          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 (5)
          Datasets (0)
          Study focus (0)
          Experimental Role
          Project
          Project Type
          Title
          Study result (0)
          Result
          Result Type
          Title
          External Crossreferences and Linkouts ( 55 )
          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
          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
          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.
          FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
          FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
          FlyCyc Pathways - Pathways 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
          FlyMet - A comprehensive tissue-specific metabolomics resource for Drosophila.
          iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
          KEGG Metabolic Pathways - A collection of manually drawn metabolic pathway maps representing knowledge of molecular interaction, reaction and relation networks.
          KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
          References (55)