FB2025_01 , released February 20, 2025
Gene: Dmel\CG45263
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General Information
Symbol
Dmel\CG45263
Species
D. melanogaster
Name
Annotation Symbol
CG45263
Feature Type
FlyBase ID
FBgn0266801
Gene Model Status
Stock Availability
Gene Summary
Contribute a Gene Snapshot for this gene.
Also Known As

MRE1

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
3-48
RefSeq locus
NT_033777 REGION:8364328..8477617
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (4 terms)
Molecular Function (1 term)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN002267852
Biological Process (1 term)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
involved_in cell-cell adhesion
inferred from biological aspect of ancestor with PANTHER:PTN002267852
Cellular Component (2 terms)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
is_active_in cell-cell junction
inferred from biological aspect of ancestor with PANTHER:PTN002267852
is_active_in plasma membrane
inferred from biological aspect of ancestor with PANTHER:PTN002267852
Gene Group (FlyBase)
Protein Family (UniProt)
-
Summaries
Gene Model and Products
Number of Transcripts
6
Number of Unique Polypeptides
6

Please see the JBrowse view of Dmel\CG45263 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 Q9VHR2)

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

Stop-codon suppression (UAG) postulated (FBrf0222776, FlyBase analysis); supported by conservation of the extended ORF across Drosophila species (FBrf0202906).

Gene model reviewed during 5.56

Gene model reviewed during 5.45

Gene model reviewed during 5.55

Gene model reviewed during 6.02

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

Gene model reviewed during 5.40

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0345457
3658
732
FBtr0345458
5565
1148
FBtr0345459
5385
1034
FBtr0345460
9306
1876
FBtr0346728
5385
711
FBtr0346729
9306
711
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
FBpp0311575
80.6
732
6.61
FBpp0311578
206.6
1876
7.85
Polypeptides with Identical Sequences

None of the polypeptides share 100% sequence identity.

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\CG45263 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).

0.34

Transcript Expression
Polypeptide Expression
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\CG45263 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 ( 16 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 11 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of CG45263
Transgenic constructs containing regulatory region of CG45263
Aberrations (Deficiencies and Duplications) ( 1 )
Inferred from experimentation ( 1 )
Gene disrupted in
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) (99)
3 of 14
Yes
Yes
3 of 14
Yes
Yes
3 of 14
Yes
Yes
3 of 14
Yes
Yes
3 of 14
Yes
Yes
3 of 14
Yes
Yes
3 of 14
Yes
Yes
3 of 14
Yes
Yes
2 of 14
No
Yes
1  
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
2 of 14
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Yes
2 of 14
No
Yes
2 of 14
No
Yes
2 of 14
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Yes
2 of 14
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Yes
2 of 14
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Yes
2 of 14
No
Yes
2 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
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1 of 14
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1 of 14
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No
1 of 14
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Yes
1 of 14
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Yes
1 of 14
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Yes
1 of 14
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Yes
1 of 14
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Yes
1 of 14
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1 of 14
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No
1 of 14
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No
1 of 14
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No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
4  
1 of 14
No
No
3  
1 of 14
No
No
2  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
2  
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
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No
1 of 14
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1 of 14
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1 of 14
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1 of 14
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1 of 14
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1 of 14
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Yes
1 of 14
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1 of 14
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No
1 of 14
No
No
1  
1 of 14
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No
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1 of 14
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No
1  
1 of 14
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Yes
1 of 14
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No
1 of 14
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No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
4  
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
2  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1  
1 of 14
No
No
3  
1 of 14
No
No
1  
1 of 14
No
No
4  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
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) (55)
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 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
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
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Yes
1 of 14
No
Yes
1 of 14
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Yes
1 of 14
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Yes
1 of 14
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Yes
1 of 14
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No
1 of 14
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No
1 of 14
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No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
No
1 of 14
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No
1 of 14
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No
1 of 14
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1 of 14
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No
1 of 14
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Yes
1 of 14
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Yes
1 of 14
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Yes
1 of 14
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Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
Mus musculus (laboratory mouse) (68)
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 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
Yes
1 of 14
No
Yes
1 of 14
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Yes
1 of 14
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Yes
1 of 14
No
Yes
1 of 14
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Yes
1 of 14
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Yes
1 of 14
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No
1 of 14
No
Yes
1 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
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No
1 of 14
No
No
1 of 14
No
No
1 of 14
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Yes
1 of 14
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Yes
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Yes
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Yes
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Yes
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Yes
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Yes
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Yes
1 of 14
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Yes
1 of 14
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No
1  
1 of 14
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No
1  
1 of 14
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No
1  
1 of 14
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Yes
1 of 14
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No
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Yes
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Yes
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Yes
1 of 14
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Yes
1 of 14
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Yes
1 of 14
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No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
Xenopus tropicalis (Western clawed frog) (45)
2 of 13
Yes
Yes
2 of 13
Yes
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
Yes
1 of 13
No
Yes
1 of 13
No
No
1 of 13
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No
1 of 13
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No
1 of 13
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No
1 of 13
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Yes
1 of 13
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Yes
1 of 13
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No
1 of 13
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1 of 13
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No
1 of 13
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No
1 of 13
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Yes
1 of 13
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Yes
1 of 13
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Yes
1 of 13
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Yes
1 of 13
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No
1 of 13
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No
1 of 13
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Yes
1 of 13
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Yes
1 of 13
No
No
1 of 13
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Yes
1 of 13
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No
1 of 13
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Yes
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Yes
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Yes
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Yes
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Yes
1 of 13
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No
1 of 13
No
Yes
1 of 13
No
Yes
1 of 13
No
Yes
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
Danio rerio (Zebrafish) (96)
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
Yes
2 of 14
Yes
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
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No
1 of 14
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No
1 of 14
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No
1 of 14
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No
1 of 14
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No
1 of 14
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No
1 of 14
No
Yes
1 of 14
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Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
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No
1 of 14
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No
1 of 14
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No
1 of 14
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Yes
1 of 14
No
Yes
1 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
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
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Yes
1 of 14
No
Yes
1 of 14
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Yes
1 of 14
No
Yes
1 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
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
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
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
Yes
1 of 14
No
Yes
Caenorhabditis elegans (Nematode, roundworm) (10)
2 of 14
Yes
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
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
Anopheles gambiae (African malaria mosquito) (40)
9 of 12
Yes
Yes
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
Arabidopsis thaliana (thale-cress) (0)
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:CG45263. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (39)
2 of 13
2 of 13
2 of 13
2 of 13
2 of 13
2 of 13
2 of 13
2 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
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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 ( 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
    Show neighbor-neighbor interactions:
    Show/hide secondary interactors 
    (data from AllianceMine provided by esyN)
    Select Layout:
    Legend:
    Protein
    RNA
    Selected Interactor(s)
    Other Interaction Browsers

    Please see the Physical Interaction reports below for full details
    protein-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
    Other 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
    84F15-85A2
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (19)
    Genomic Clones (91)
    cDNA Clones (20)
     

    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
    RNAi and Array Information
    Linkouts
    Antibody Information
    Laboratory Generated Antibodies
     
    Commercially Available Antibodies
     
    Cell Line Information
    Publicly Available Cell Lines
     
      Other Stable Cell Lines
       
        Other Comments

        Area matching Drosophila EST AI402854.

        Relationship to Other Genes
        Source for database merge of

        Source for merge of: CG31369 CG42285 CG42286

        Source for merge of: CG31264 BcDNA:AT05815 anon- EST:Posey178 BcDNA:GH22170

        Source for merge of: PQBP-1 CG31264

        Source for merge of: PQBP-1 MRE1

        Source for merge of: CG43462 CG31462

        Additional comments

        Annotations CG43462 and CG31462 merged as CG45263 in release 5.56 of the genome annotation, based on RNA-Seq coverage data.

        The putative non-coding RNA "MRE1" identified in FBrf0190572 corresponds to the 5'UTR of the CG31369 annotation.

        Merge supported by RNA-seq junction and RNA-seq expression data.

        Annotations CG31369, CG42285, and CG42286 merged as CG43462 in release 5.40 of the genome annotation.

        The gene corresponding to the CG31369 annotation was previously called PQBP-1 (Poly-glutamine tract binding protein 1) in FlyBase, based on the name given in the GenBank accession AJ278495 (which matches part of CG31369 by BLASTN). However, BLAST analysis indicates that CG31369 is not an ortholog of human PQBP-1, and that the D. melanogaster ortholog of human PQBP-1 is CG11820. The gene corresponding to the CG31369 annotation has thus been renamed CG31369 in FlyBase, and the gene corresponding to the CG11820 annotation has been renamed to PQBP1 (as suggested in FBrf0212135).

        Annotation CG11718 split into CG42285 and CG42286 in release 5.9 of the genome annotation.

        Source for split of: CG11718

        Annotation CG11729 split into CG31462 and part of CG31264 in release 3 of the genome annotation. Annotation CG11731 split in release 3 of the genome annotation, corresponding to parts of release 3 annotations CG31264 and CG31369.

        Source for merge of CG31264 BcDNA:AT05815 was shared cDNA (AT05815) ( date:030530 ).

        Nomenclature History
        Source for database identify of
        Nomenclature comments
        Etymology
        Synonyms and Secondary IDs (21)
        Reported As
        Name Synonyms
        mRNA-like ncRNA in embryogenesis 1
        Secondary FlyBase IDs
        • FBgn0263416
        • FBgn0262729
        • FBgn0250829
        • FBgn0243510
        • FBgn0061464
        • FBgn0051369
        • FBgn0051264
        • FBgn0040530
        • FBgn0037588
        • FBgn0037587
        • FBan0031264
        • FBgn0028701
        • FBgn0046787
        • FBgn0027738
        • FBgn0086534
        • FBgn0259181
        • FBgn0037585
        • FBan0011718
        • FBgn0259182
        • FBgn0051462
        • FBgn0037586
        Datasets (0)
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        External Crossreferences and Linkouts ( 79 )
        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.
        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
        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.
        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 (67)