FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Dmel\ps
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General Information
Symbol
Dmel\ps
Species
D. melanogaster
Name
pasilla
Annotation Symbol
CG42670
Feature Type
FlyBase ID
FBgn0261552
Gene Model Status
Stock Availability
Gene Summary
pasilla (ps) encodes a nuclear RNA binding protein implicated in splicing. It is expressed at high levels in the embryonic salivary gland and other tissues. Loss of function results in a significant reduction in secretory volume and secretory vesicles in the salivary gland and irregular gland morphology. [Date last reviewed: 2019-03-14] (FlyBase Gene Snapshot)
Also Known As

l(3)10615

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
3-48
RefSeq locus
NT_033777 REGION:9417940..9455500
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (10 terms)
Molecular Function (4 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from direct assay
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
enables mRNA binding
inferred from biological aspect of ancestor with PANTHER:PTN000032600
inferred from electronic annotation with InterPro:IPR004087
enables RNA binding
inferred from electronic annotation with InterPro:IPR004088, InterPro:IPR036612
Biological Process (3 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
inferred from direct assay
inferred from mutant phenotype
inferred from high throughput mutant phenotype
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
Cellular Component (3 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
located_in cytosol
inferred from high throughput direct assay
located_in nucleus
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:PTN000032600
is_active_in nucleus
inferred from biological aspect of ancestor with PANTHER:PTN000032600
Gene Group (FlyBase)
Protein Family (UniProt)
-
Summaries
Gene Snapshot
pasilla (ps) encodes a nuclear RNA binding protein implicated in splicing. It is expressed at high levels in the embryonic salivary gland and other tissues. Loss of function results in a significant reduction in secretory volume and secretory vesicles in the salivary gland and irregular gland morphology. [Date last reviewed: 2019-03-14]
Protein Function (UniProtKB)
Functions to regulate alternative splicing in neurons by binding pre-mRNA in a sequence-specific manner to activate exon inclusion (By similarity). Plays a role in long-term memory formation by processing the unspliced Orb2-isoform A (Orb2A) mRNA and thereby controlling Orb2A protein abundance (PubMed:28525754).
(UniProt, A0A0B4KGY6)
Gene Model and Products
Number of Transcripts
18
Number of Unique Polypeptides
12

Please see the JBrowse view of Dmel\ps 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 A0A0B4KGY6)

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

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

Gene model reviewed during 5.47

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

Gene model reviewed during 5.53

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0082037
4508
475
FBtr0082039
2619
561
FBtr0082038
2685
583
FBtr0111027
3538
572
FBtr0111028
3301
572
FBtr0111029
3736
572
FBtr0111030
4635
519
FBtr0111031
2558
539
FBtr0111032
10086
550
FBtr0302691
3964
758
FBtr0302694
3238
550
FBtr0302692
10124
572
FBtr0302693
3514
572
FBtr0302695
3472
550
FBtr0334303
2492
517
FBtr0334304
3624
780
FBtr0344283
10080
594
FBtr0344284
2889
616
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
FBpp0081515
49.3
475
6.79
FBpp0081517
58.8
561
8.67
FBpp0081516
61.2
583
7.62
FBpp0110326
59.7
572
6.59
FBpp0110327
59.7
572
6.59
FBpp0110328
59.7
572
6.59
FBpp0110329
54.4
519
6.74
FBpp0110330
56.1
539
7.88
FBpp0110331
57.3
550
7.22
FBpp0291834
57.3
550
7.22
FBpp0291832
59.7
572
6.59
FBpp0291833
59.7
572
6.59
FBpp0291835
57.3
550
7.22
Polypeptides with Identical Sequences

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

572 aa isoforms: ps-PF, ps-PG, ps-PH, ps-PN, ps-PO
550 aa isoforms: ps-PK, ps-PM, ps-PP
Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Domain

The KH domain consists of approximately 70 amino acids and includes a conserved hydrophobic core, an invariant Gly-X-X-Gly motif, and an additional variable segment. The third KH domain (KH3) binds a hairpin RNA loop containing the 5'-UCAY-3' motif on targeted molecules. RNA binding by KH3 requires residues C-terminal to the KH domain.

(UniProt, A0A0B4KGY6)
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\ps 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).

0.16

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

Isoform-specific expression patterns are observed. Sex-specific expression of alternative transcripts observed.

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

JBrowse - Visual display of RNA-Seq signals

View Dmel\ps 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
Images
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 30 )
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 ps
Transgenic constructs containing regulatory region of ps
Aberrations (Deficiencies and Duplications) ( 4 )
Inferred from experimentation ( 4 )
Gene not disrupted in
Inferred from location ( 2 )
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) (16)
12 of 14
Yes
Yes
1  
12 of 14
Yes
Yes
2 of 14
No
No
1  
2 of 14
No
No
2 of 14
No
No
3  
2 of 14
No
No
1  
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1  
2 of 14
No
No
2 of 14
No
No
1  
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
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (14)
13 of 14
Yes
Yes
11 of 14
No
Yes
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Mus musculus (laboratory mouse) (14)
12 of 14
Yes
Yes
10 of 14
No
Yes
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (14)
10 of 13
Yes
Yes
9 of 13
No
Yes
1 of 13
No
Yes
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
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) (15)
12 of 14
Yes
Yes
12 of 14
Yes
Yes
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (9)
10 of 14
Yes
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
Yes
Anopheles gambiae (African malaria mosquito) (7)
12 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (15)
9 of 13
Yes
Yes
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
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
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
Saccharomyces cerevisiae (Brewer's yeast) (2)
3 of 13
Yes
No
2 of 13
No
No
Schizosaccharomyces pombe (Fission yeast) (1)
1 of 12
Yes
No
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:ps. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (6)
4 of 13
3 of 13
3 of 13
3 of 13
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 )
    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
    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
    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
    3-48
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    85D16-85D17
    Limits computationally determined from genome sequence between P{PZ}ps10615&P{PZ}Ras85D06677 and P{EP}CG9393EP3122
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    85D16-85D17
    85D15-85D17
    (determined by in situ hybridisation)
    85D13-85D14
    (determined by in situ hybridisation)
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (17)
    Genomic Clones (40)
    cDNA Clones (123)
     

    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
    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
     

    polyclonal

    Commercially Available Antibodies
     
    Cell Line Information
    Publicly Available Cell Lines
     
      Other Stable Cell Lines
       
        Other Comments

        RNAi generated by PCR using primers directed to this gene causes a cell growth and viability phenotype when assayed in Kc167 and S2R+ cells.

        ps is required for normal apical secretion in the salivary gland.

        Identification: Via expression pattern in enhancer trap P{lacZ}ET85D recovered from a screen to identify downstream target genes of Scr.

        Relationship to Other Genes
        Source for database merge of

        Source for merge of: l(3)10615 CG16765

        Source for merge of: ps CG16777

        Source for merge of: CG16776 CG18509

        Source for merge of: ps CG16776

        Source for merge of: l(3)10615 BcDNA:RE47781

        Source for merge of: ps CG8144

        Additional comments

        Annotations CG16765 and CG16777 merged as CG42670 in release 5.25 of the genome annotation.

        Source for merge of CG16776 CG18509 was sequence comparison ( date:001104 ).

        Annotations CG8144 and CG16776 merged as CG8144 (which corresponds to ps) in release 3 of the genome annotation.

        Source for merge of l(3)10615 BcDNA:RE47781 was a shared cDNA ( date:030728 ).

        Source for merge of ps CG8144 was sequence comparison ( date:001216 ).

        Nomenclature History
        Source for database identify of
        Nomenclature comments
        Etymology
        Synonyms and Secondary IDs (16)
        Reported As
        Symbol Synonym
        BcDNA:RE47781
        CG18509
        cg8144
        Secondary FlyBase IDs
        • FBgn0026188
        • FBgn0063674
        • FBgn0042204
        • FBgn0037695
        • FBgn0037693
        • FBgn0037692
        • FBgn0024515
        • FBan0008144
        • FBgn0037694
        Datasets (0)
        Study focus (0)
        Experimental Role
        Project
        Project Type
        Title
        Study result (0)
        Result
        Result Type
        Title
        External Crossreferences and Linkouts ( 127 )
        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.
        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
        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
        Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
        iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
        MIST (protein-protein) - An integrated Molecular Interaction Database
        References (124)