FB2024_02 , released April 23, 2024
Gene: Dmel\Pop2
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General Information
Symbol
Dmel\Pop2
Species
D. melanogaster
Name
Pop2
Annotation Symbol
CG5684
Feature Type
FlyBase ID
FBgn0036239
Gene Model Status
Stock Availability
Enzyme Name (EC)
poly(A)-specific ribonuclease (3.1.13.4)
Gene Summary
Pop2 (Pop2) encodes a poly(A)-specific ribonuclease involved in translation inhibition. [Date last reviewed: 2019-08-01] (FlyBase Gene Snapshot)
Also Known As

CAF1

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
3-38
RefSeq locus
NT_037436 REGION:11998398..12002915
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 (3 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
inferred from direct assay
inferred from mutant phenotype
inferred from physical interaction with UniProtKB:Q7KQM6
inferred from physical interaction with UniProtKB:Q8SY33
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
inferred from electronic annotation with InterPro:IPR036397
inferred from electronic annotation with InterPro:IPR039637
inferred from biological aspect of ancestor with PANTHER:PTN000084083
Biological Process (4 terms)
Terms Based on Experimental Evidence (4 terms)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (0 terms)
Cellular Component (5 terms)
Terms Based on Experimental Evidence (3 terms)
CV Term
Evidence
References
inferred from direct assay
inferred from physical interaction with FLYBASE:Marf1; FB:FBgn0039972
located_in cytoplasm
inferred from direct assay
located_in cytosol
inferred from high throughput direct assay
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
inferred from electronic annotation with InterPro:IPR039637
inferred from biological aspect of ancestor with PANTHER:PTN000084083
is_active_in P-body
inferred from biological aspect of ancestor with PANTHER:PTN000084083
Protein Family (UniProt)
-
Catalytic Activity (EC/Rhea)
poly(A)-specific ribonuclease activity
Exonucleolytic cleavage of poly(A) to 5'-AMP (3.1.13.4)
Summaries
Gene Snapshot
Pop2 (Pop2) encodes a poly(A)-specific ribonuclease involved in translation inhibition. [Date last reviewed: 2019-08-01]
Gene Group (FlyBase)
CCR4-NOT COMPLEX -
The CCR4-NOT complex is a conserved multi-subunit complex implicated in various cellular processes to regulated gene expression. It is best characterised in its role as the main enzyme responsible for the deadenylation of mRNA. The conserved core of the complex is composed of two modules: the NOT module and a catalytic module comprising two deadenylases, twin and Pop2. (Adapted from FBrf0221179 and FBrf0231273).
3'-5' RNA EXONUCLEASES -
3'-5'-exoribonucleases catalyze the sequential degradation of mononucleotides from a free 3' terminus of an RNA molecule.
Gene Model and Products
Number of Transcripts
6
Number of Unique Polypeptides
5

Please see the JBrowse view of Dmel\Pop2 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 X2JCC3)

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 5.45

Gene model reviewed during 5.55

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

Stop-codon suppression (UGA) postulated; FBrf0243886.

Gene model reviewed during 6.33

Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0076058
1688
297
FBtr0076059
1893
293
FBtr0076060
1827
293
FBtr0300272
1531
357
FBtr0344758
1750
361
FBtr0479823
1688
341
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
FBpp0075790
34.0
297
4.85
FBpp0075791
33.5
293
4.77
FBpp0075792
33.5
293
4.77
FBpp0289500
40.2
357
5.35
FBpp0311089
40.7
361
5.52
FBpp0428156
38.7
341
4.81
Polypeptides with Identical Sequences

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

293 aa isoforms: Pop2-PB, Pop2-PC
Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
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\Pop2 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).

1.93

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

Comment: maternally deposited

antennal primordium

Comment: reported as procephalic ectoderm primordium

central brain primordium

Comment: reported as procephalic ectoderm primordium

visual primordium

Comment: reported as procephalic ectoderm primordium

dorsal head epidermis primordium

Comment: reported as procephalic ectoderm primordium

lateral head epidermis primordium

Comment: reported as procephalic ectoderm primordium

ventral head epidermis primordium

Comment: reported as procephalic ectoderm primordium

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
western blot
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

Expression is observed in all cells of the ovary at all stages of oogenesis.

Marker for
Subcellular Localization
CV Term
Evidence
References
inferred from direct assay
inferred from physical interaction with FLYBASE:Marf1; FB:FBgn0039972
located_in cytoplasm
inferred from direct assay
located_in cytosol
inferred from high throughput direct assay
Expression Deduced from Reporters
Stage
Tissue/Position (including subcellular localization)
Reference
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\Pop2 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 ( 7 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 9 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Pop2
Transgenic constructs containing regulatory region of Pop2
Aberrations (Deficiencies and Duplications) ( 1 )
Inferred from experimentation ( 1 )
Gene disrupted in
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) (3)
14 of 14
Yes
Yes
1  
13 of 14
No
Yes
1 of 14
No
Yes
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (3)
14 of 14
Yes
Yes
12 of 14
No
Yes
1 of 14
No
Yes
Mus musculus (laboratory mouse) (2)
13 of 14
Yes
Yes
13 of 14
Yes
Yes
Xenopus tropicalis (Western clawed frog) (4)
11 of 13
Yes
Yes
6 of 13
No
Yes
1 of 13
No
Yes
1 of 13
No
No
Danio rerio (Zebrafish) (3)
14 of 14
Yes
Yes
13 of 14
No
Yes
1 of 14
No
Yes
Caenorhabditis elegans (Nematode, roundworm) (2)
14 of 14
Yes
Yes
1 of 14
No
Yes
Anopheles gambiae (African malaria mosquito) (1)
12 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (11)
13 of 13
Yes
Yes
12 of 13
No
Yes
12 of 13
No
Yes
11 of 13
No
Yes
7 of 13
No
Yes
7 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
Saccharomyces cerevisiae (Brewer's yeast) (1)
11 of 13
Yes
Yes
Schizosaccharomyces pombe (Fission yeast) (2)
12 of 12
Yes
Yes
1 of 12
No
Yes
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:Pop2. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Human Disease Associations
FlyBase Human Disease Model Reports
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 2 )
Allele
Disease
Evidence
References
Potential Models Based on Orthology ( 0 )
Human Ortholog
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 1 )
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.
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
esyN Network Diagram
Show neighbor-neighbor interactions:
Show/hide secondary interactors 
(data from AllianceMine provided by esyN)
Select Layout:
Legend:
Protein
RNA
Selected Interactor(s)
Interactions Browser

Please see the Physical Interaction reports below for full details
MIST Molecular Interaction Search Tool

Please see the Physical Interaction reports below for full details
protein-protein
Physical Interaction
Assay
References
RNA-protein
Physical Interaction
Assay
References
Summary of Genetic Interactions
esyN Network Diagram
Show/hide secondary interactors 
(data from AllianceMine provided by esyN)
esyN Network Key:
Suppression
Enhancement

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 (protein-protein) - An integrated Molecular Interaction Database
Pathways
Signaling Pathways (FlyBase)
Metabolic Pathways
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
3-38
Cytogenetic map
Sequence location
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
68F1-68F1
Limits computationally determined from genome sequence between P{PZ}CycA02461&P{PZ}CycA03946 and P{PZ}rols08232&P{lacW}l(3)j2D3j2D3
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
Experimentally Determined Recombination Data
Location
Left of (cM)
Right of (cM)
Notes
Stocks and Reagents
Stocks (13)
Genomic Clones (24)
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
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

      dsRNA made from templates generated with primers directed against this gene are used to study its function.

      dsRNA has been made from templates generated with primers directed against this gene. RNAi of Pop2 causes dorsal overextension of the primary dendrite in ddaE and an overall increase in dendritic length in both ddaD and ddaE neurons. RNAi also causes defects in muscle and defects in dendrite morphogenesis.

      Depletion of Pop2 using dsRNA interference (RNAi) in S2 cells results in a strong increase in the average mRNA poly(A) length.

      Relationship to Other Genes
      Source for database merge of
      Additional comments
      Nomenclature History
      Source for database identify of

      Source for identity of: CG5684 Pop2

      Nomenclature comments
      Etymology
      Synonyms and Secondary IDs (7)
      Reported As
      Symbol Synonym
      Name Synonyms
      Pop2
      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 ( 67 )
        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/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)
        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
        References (110)