FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Dmel\Trpγ
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General Information
Symbol
Dmel\Trpγ
Species
D. melanogaster
Name
Transient receptor potential cation channel γ
Annotation Symbol
CG5996
Feature Type
FlyBase ID
FBgn0032593
Gene Model Status
Stock Availability
Gene Summary
A light-sensitive calcium channel that is required for inositide-mediated Ca(2+) entry in the retina during phospholipase C (PLC)-mediated phototransduction (By similarity). Forms a regulated cation channel when heteromultimerized with trpl. (UniProt, Q9VJJ7)
Contribute a Gene Snapshot for this gene.
Also Known As

trp-γ

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
2-52
RefSeq locus
NT_033779 REGION:16663454..16676701
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (23 terms)
Molecular Function (7 terms)
Terms Based on Experimental Evidence (3 terms)
CV Term
Evidence
References
inferred from physical interaction with UniProtKB:P19334
inferred from physical interaction with UniProtKB:P48994
Terms Based on Predictions or Assertions (4 terms)
CV Term
Evidence
References
inferred from electronic annotation with InterPro:IPR002153
inferred from sequence or structural similarity with UniProtKB:P19334
Biological Process (10 terms)
Terms Based on Experimental Evidence (3 terms)
CV Term
Evidence
References
inferred from mutant phenotype
inferred from direct assay
inferred from mutant phenotype
Terms Based on Predictions or Assertions (7 terms)
CV Term
Evidence
References
inferred from electronic annotation with InterPro:IPR002153
inferred from biological aspect of ancestor with PANTHER:PTN000012230
inferred from sequence or structural similarity with UniProtKB:P19334
inferred from sequence or structural similarity with UniProtKB:P19334
inferred from electronic annotation with InterPro:IPR005821
traceable author statement
inferred from sequence or structural similarity with UniProtKB:P19334
inferred from electronic annotation with InterPro:IPR005821
Cellular Component (6 terms)
Terms Based on Experimental Evidence (4 terms)
CV Term
Evidence
References
inferred from physical interaction with FLYBASE:trpl; FB:FBgn0005614
inferred from direct assay
inferred from direct assay
located_in rhabdomere
inferred from direct assay
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000012230
located_in membrane
inferred from electronic annotation with InterPro:IPR002153, InterPro:IPR005821
is_active_in plasma membrane
inferred from biological aspect of ancestor with PANTHER:PTN000012230
Protein Family (UniProt)
Belongs to the transient receptor (TC 1.A.4) family. STrpC subfamily. (Q9VJJ7)
Summaries
Gene Group (FlyBase)
TRANSIENT RECEPTOR POTENTIAL ION CHANNELS -
The Transient Receptor Potential (TRP) channel family are cation channels conserved from invertebrates to humans. TRP channels respond to diverse stimuli and are involved in a number of environmental sensory pathways. (Adapted from FBrf0220930 and FBrf0225477).
MECHANOSENSITIVE TRANSIENT RECEPTOR POTENTIAL ION CHANNELS -
The Transient Receptor Potential (TRP) ion channels are cation channels. Some members of the TRP family have been shown to be gated by mechanical stimulation (Adapted from FBrf0248531.)
Protein Function (UniProtKB)
A light-sensitive calcium channel that is required for inositide-mediated Ca(2+) entry in the retina during phospholipase C (PLC)-mediated phototransduction (By similarity). Forms a regulated cation channel when heteromultimerized with trpl.
(UniProt, Q9VJJ7)
Summary (Interactive Fly)

Ca++ channel protein activated by polyunsaturated fatty acids generated in a phospholipase C- and phospholipase A2-dependent manner - motor coordination - olfactory sensitivity - Malpighian tubule fluid transport - photoresponse

Gene Model and Products
Number of Transcripts
3
Number of Unique Polypeptides
2

Please see the JBrowse view of Dmel\Trpγ 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 Q9VJJ7)

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 5.47

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

Unconventional translation start (CUG) postulated; FBrf0218597 (FlyBase analysis); additional N-terminal aa sequence conserved in Drosophila species.

Gene model reviewed during 5.56

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0080945
4232
1128
FBtr0080946
4189
1128
FBtr0335144
5274
1188
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
FBpp0080498
127.1
1128
8.01
FBpp0080499
127.1
1128
8.01
FBpp0307143
133.5
1188
8.57
Polypeptides with Identical Sequences

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

1128 aa isoforms: Trpγ-PA, Trpγ-PB
Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Subunit Structure (UniProtKB)

Interacts preferentially with trpl and interacts to a lower extent with trp.

(UniProt, Q9VJJ7)
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\Trpγ 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).

0.26

Transcript Expression
Additional Descriptive Data
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

Trpγ-protein is expressed in scolopidial neurons where it labels cell bodies and proximal dendrites including the scolopidial cilium. Labeling is also detected in scolopale cells.

Marker for
 
Subcellular Localization
CV Term
Evidence
References
inferred from physical interaction with FLYBASE:trpl; FB:FBgn0005614
inferred from direct assay
inferred from direct assay
located_in rhabdomere
inferred from direct assay
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\Trpγ 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
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
Flygut - An atlas of the Drosophila adult midgut
Images
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 6 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 14 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Trpγ
Transgenic constructs containing regulatory region of Trpγ
Aberrations (Deficiencies and Duplications) ( 1 )
Inferred from experimentation ( 1 )
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
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) (14)
13 of 14
Yes
Yes
12 of 14
No
Yes
7 of 14
No
Yes
3 of 14
No
Yes
3 of 14
No
Yes
3 of 14
No
Yes
1 of 14
No
No
1  
1 of 14
No
No
3  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
3  
1 of 14
No
No
2  
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) (17)
13 of 14
Yes
Yes
12 of 14
No
Yes
6 of 14
No
Yes
3 of 14
No
Yes
3 of 14
No
Yes
3 of 14
No
Yes
2 of 14
No
Yes
2 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Mus musculus (laboratory mouse) (16)
12 of 14
Yes
Yes
12 of 14
Yes
Yes
7 of 14
No
Yes
3 of 14
No
Yes
3 of 14
No
Yes
3 of 14
No
Yes
3 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
Xenopus tropicalis (Western clawed frog) (16)
10 of 13
Yes
Yes
7 of 13
No
Yes
4 of 13
No
Yes
3 of 13
No
No
2 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
Danio rerio (Zebrafish) (24)
12 of 14
Yes
Yes
11 of 14
No
Yes
11 of 14
No
Yes
6 of 14
No
Yes
6 of 14
No
Yes
3 of 14
No
Yes
3 of 14
No
Yes
2 of 14
No
Yes
2 of 14
No
Yes
2 of 14
No
Yes
2 of 14
No
Yes
2 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (5)
13 of 14
Yes
Yes
3 of 14
No
Yes
2 of 14
No
Yes
2 of 14
No
No
1 of 14
No
No
Anopheles gambiae (African malaria mosquito) (5)
12 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (0)
Saccharomyces cerevisiae (Brewer's yeast) (1)
1 of 13
Yes
No
Schizosaccharomyces pombe (Fission yeast) (0)
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:Trpγ. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (4)
11 of 13
11 of 13
2 of 13
1 of 13
Human Disease Associations
FlyBase Human Disease Model Reports
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 3 )
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
Interaction Browsers
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 preferentially with trpl and interacts to a lower extent with trp.
(UniProt, Q9VJJ7 )
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
KEGG Pathways - A collection of manually drawn pathway maps representing knowledge of molecular interaction, reaction and relation networks.
Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
SignaLink - A signaling pathway resource with multi-layered regulatory networks.
Class of Gene
Genomic Location and Detailed Mapping Data
Chromosome (arm)
2L
Recombination map
2-52
Cytogenetic map
Sequence location
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
36A9-36A10
Limits computationally determined from genome sequence between P{PZ}dacP and P{EP}grpEP921&P{lacW}l(2)k13905k13905
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
Experimentally Determined Recombination Data
Location
Left of (cM)
Right of (cM)
Notes
Stocks and Reagents
Stocks (16)
Genomic Clones (24)
cDNA Clones (2)
 

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)
      BDGP DGC clones
        Other clones
          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

              Trpγ is required for fine motor control.

              trpγ forms a receptor-activated outwardly rectifying cation channel which is activated by various polyunsaturated fatty acids generated in a phospholipase C- and phospholipase A2-dependent manner.

              trpγ forms a regulated cation channel with trpl.

              trpγ-trpl heteromultimers contribute to the photoresponse.

              Relationship to Other Genes
              Source for database merge of
              Additional comments

              Source for identity of trpγ CG5996 was sequence comparison ( date:000721 ).

              Nomenclature History
              Source for database identify of

              Source for identity of: trpγ CG5996

              Source for identity of: Trpγ trpγ

              Nomenclature comments
              Etymology
              Synonyms and Secondary IDs (15)
              Reported As
              Name Synonyms
              Transient receptor potential cation channel γ
              Secondary FlyBase IDs
                Datasets (0)
                Study focus (0)
                Experimental Role
                Project
                Project Type
                Title
                Study result (0)
                Result
                Result Type
                Title
                External Crossreferences and Linkouts ( 45 )
                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.
                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
                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)
                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 (protein-protein) - An integrated Molecular Interaction Database
                Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
                SignaLink - A signaling pathway resource with multi-layered regulatory networks.
                References (92)