FB2025_05 , released December 11, 2025
Gene: Dmel\RhoGAPp190
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General Information
Symbol
Dmel\RhoGAPp190
Species
D. melanogaster
Name
Rho GTPase activating protein p190
Annotation Symbol
CG32555
Feature Type
FlyBase ID
FBgn0026375
Gene Model Status
Stock Availability
Gene Summary
Rho GTPase activating protein p190 (RhoGAPp190) encodes a Rho GTPase activating protein that binds the semaphorin receptor and regulates axonogenesis. [Date last reviewed: 2019-08-01] (FlyBase Gene Snapshot)
Also Known As

p190RhoGAP, p190 RhoGAP, p190, RhoGAP

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
1-57
RefSeq locus
NC_004354 REGION:17639147..17652562
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (12 terms)
Molecular Function (4 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
inferred from genetic interaction with FLYBASE:Rho1; FB:FBgn0014020
inferred from physical interaction with FLYBASE:Sema1a; FB:FBgn0011259
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
enables GTP binding
inferred from electronic annotation with InterPro:IPR001806
inferred from biological aspect of ancestor with PANTHER:PTN002508977
inferred from electronic annotation with InterPro:IPR001806
Biological Process (7 terms)
Terms Based on Experimental Evidence (5 terms)
CV Term
Evidence
References
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
inferred from genetic interaction with FLYBASE:LIMK1; FB:FBgn0283712
inferred from genetic interaction with FLYBASE:Rho1; FB:FBgn0014020
Terms Based on Predictions or Assertions (4 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000571300
inferred from biological aspect of ancestor with PANTHER:PTN002508977
inferred from biological aspect of ancestor with PANTHER:PTN002508977
inferred from electronic annotation with InterPro:IPR000198
Cellular Component (1 term)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
is_active_in cytosol
inferred from biological aspect of ancestor with PANTHER:PTN002508977
Gene Group (FlyBase)
Protein Family (UniProt)
-
Catalytic Activity (EC/Rhea)
GTPase activity
RHEA 19669:
Summaries
Gene Snapshot
Rho GTPase activating protein p190 (RhoGAPp190) encodes a Rho GTPase activating protein that binds the semaphorin receptor and regulates axonogenesis. [Date last reviewed: 2019-08-01]
Gene Group (FlyBase)
RHO GTPASE ACTIVATING PROTEINS -
RhoGAPs are GTPase activating proteins for Rho family GTPases. (Adapted from PMID:15731001 and FBrf0158741).
Protein Function (UniProtKB)
GTPase-activating protein (GAP) for RhoA/Rho1 that plays an essential role in the stability of dorsal branches of mushroom body (MB) neurons. The MB neurons are the center for olfactory learning and memory. Acts by converting RhoA/Rho1 to an inactive GDP-bound state, leading to repress the RhoA/Rho1-Drok-MRLC signaling pathway thereby maintaining axon branch stability. ACTIVITY REGULATION: Negatively regulated by integrin, bsk and Src/Src64B.
(UniProt, Q9VX32)
Summary (Interactive Fly)

part of an axon retraction pathway from Rho to myosin in mature neurons - inactivation of RhoGAP leads to axon retraction

Gene Model and Products
Number of Transcripts
7
Number of Unique Polypeptides
5

Please see the JBrowse view of Dmel\RhoGAPp190 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 Q9VX32)

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

Annotated transcripts do not represent all possible combinations of alternative exons and/or alternative promoters.

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

Gene model reviewed during 5.46

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

Gene model reviewed during 5.51

Tissue-specific extension of 3' UTRs observed during later stages (FBrf0218523, FBrf0219848); all variants may not be annotated.

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0074483
7348
1561
FBtr0074481
5872
1561
FBtr0074482
7639
1561
FBtr0333659
7301
1564
FBtr0333660
7693
1579
FBtr0333661
7411
1621
FBtr0333662
6742
1398
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
FBpp0074257
178.8
1561
5.26
FBpp0074255
178.8
1561
5.26
FBpp0074256
178.8
1561
5.26
Polypeptides with Identical Sequences

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

Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
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\RhoGAPp190 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).

-0.89

Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

Expression in stage P3 pupal leg discs is ubiquitous but is elevated in the joints.

Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
mass spectroscopy
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Evidence
References
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\RhoGAPp190 in JBrowse
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
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 15 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 12 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of RhoGAPp190
Transgenic constructs containing regulatory region of RhoGAPp190
Aberrations (Deficiencies and Duplications) ( 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
Sterility
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) (9)
12 of 14
Yes
Yes
12 of 14
Yes
Yes
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
3  
1 of 14
No
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) (5)
13 of 14
Yes
Yes
12 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Mus musculus (laboratory mouse) (4)
12 of 14
Yes
Yes
12 of 14
Yes
Yes
1 of 14
No
No
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (5)
11 of 13
Yes
Yes
10 of 13
No
Yes
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
Danio rerio (Zebrafish) (4)
13 of 14
Yes
Yes
13 of 14
Yes
Yes
11 of 14
No
Yes
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (2)
11 of 14
Yes
Yes
1 of 14
No
No
Anopheles gambiae (African malaria mosquito) (2)
12 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (4)
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
1 of 13
Yes
No
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:RhoGAPp190. 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 ( 2 )
    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
    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
    Class of Gene
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    X
    Recombination map
    1-57
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    16B10-16B10
    Limits computationally determined from genome sequence between P{EP}bazEP1446 and P{EP}EP1464
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (27)
    Genomic Clones (12)
     

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

    cDNA Clones (141)
     

    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

          Sema-1a-mediated motor axon defasciculation is promoted by pbl and inhibited by RhoGAPp190. The opposing pbl and RhoGAPp190 functions mediate Sema-1a reverse signaling through the regulation of Rho1 activity.

          dsRNA made from templates generated with primers directed against this gene tested in RNAi screen for effects on Kc167 and S2R+ cell morphology.

          Inactivation of RhoGAPp190 results in axon retraction in the mushroom body.

          Relationship to Other Genes
          Source for database merge of

          Source for merge of: RhoGAPp190 BcDNA:GM05133

          Source for merge of: RhoGAPp190 BcDNA:GH17919

          Additional comments

          Annotations CG8240, CG8267 merged as CG32555 in release 3 of the genome annotation.

          Source for identity of RhoGAP CG8240 CG8267 was sequence comparison ( date:011104 ).

          Source for merge of RhoGAPp190 BcDNA:GM05133 was a shared cDNA ( date:030728 ).

          Source for merge of RhoGAPp190 BcDNA:GH17919 was a shared cDNA ( date:030728 ).

          Nomenclature History
          Source for database identify of

          Source for identity of: RhoGAP CG8240 CG8267

          Nomenclature comments
          Etymology
          Synonyms and Secondary IDs (20)
          Reported As
          Name Synonyms
          Rho GTPase activating protein p190
          Rp190RhoGAP
          Secondary FlyBase IDs
          • FBgn0030856
          • FBgn0030857
          • FBgn0046792
          • FBgn0052555
          • FBgn0062491
          Datasets (0)
          Study focus (0)
          Experimental Role
          Project
          Project Type
          Title
          Study result (0)
          Result
          Result Type
          Title
          External Crossreferences and Linkouts ( 101 )
          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
          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
          MIST (genetic) - An integrated Molecular Interaction Database
          MIST (protein-protein) - An integrated Molecular Interaction Database
          References (87)