FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Dmel\ro
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General Information
Symbol
Dmel\ro
Species
D. melanogaster
Name
rough
Annotation Symbol
CG6348
Feature Type
FlyBase ID
FBgn0003267
Gene Model Status
Stock Availability
Gene Summary
Required to establish the unique cell identity of photoreceptors R2 and R5 and consequently for ommatidial assembly in the developing eye imaginal disk. Repression of expression in R8 photoreceptor by senseless (sens) is an essential mechanism of R8 cell fate determination. (UniProt, P10181)
Contribute a Gene Snapshot for this gene.
Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
3-92
RefSeq locus
NT_033777 REGION:26876771..26881171
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (13 terms)
Molecular Function (6 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (5 terms)
CV Term
Evidence
References
Biological Process (6 terms)
Terms Based on Experimental Evidence (4 terms)
CV Term
Evidence
References
inferred from mutant phenotype
inferred from mutant phenotype
inferred from mutant phenotype
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000675451
inferred from electronic annotation with InterPro:IPR046327
Cellular Component (1 term)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
located_in nucleus
inferred from direct assay
inferred from direct assay
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
is_active_in nucleus
inferred from biological aspect of ancestor with PANTHER:PTN000675451
Protein Family (UniProt)
-
Summaries
Gene Group (FlyBase)
HOX-LIKE HOMEOBOX TRANSCRIPTION FACTORS -
HOX-like (HOXL) homeobox transcription factors are sequence-specific DNA binding proteins that regulate transcription. They encompass transcription factors encoded by the Hox genes of the Antennapedia and the Bithorax gene complexes and genes closely related in sequence. HOXL transcription factors are major regulators of animal development. (Adapted from FBrf0232555).
Protein Function (UniProtKB)
Required to establish the unique cell identity of photoreceptors R2 and R5 and consequently for ommatidial assembly in the developing eye imaginal disk. Repression of expression in R8 photoreceptor by senseless (sens) is an essential mechanism of R8 cell fate determination.
(UniProt, P10181)
Phenotypic Description (Red Book; Lindsley and Zimm 1992)
ro: rough
Homozygotes have rough eyes; slightly smaller and narrower than wild type. Approximately normal numbers of facets but arrangement irregular; frequently have fewer and sometimes more than eight retinula cells; some facets missing such that three ommatidial bristles juxtaposed; other facets fused (Stemm-Tegethoff and Dicke, 1974, Theoret. Appl. Genet. 44: 262-65; Ready et al.). Fiber pathways through lamina and into medulla in considerable disarray; optic chiasma between the two replaced by parallel fibers; laminar cartridge and medullar columns deranged, ventral epithelial nuclear row absent; medulla displaced from normal position and rotated anteriorly. Mosaic studies demonstrate that phenotype is eye autonomous; i.e., the genotype of the eye dictates that of the underlying nervous elements. Expression, as determined by in situ hybridization found in the eye-antenna imaginal disk, especially in the region of the morphogenetic furrow, as well as in a specific area of the brain. No evidence of embryonic expression (Saint, Kalionis, Lockett, and Elizur, 1988, Nature (London) 334: 151-54). RK1.
Summary (Interactive Fly)

transcription factor - homeodomain - plays a critical role in restriction of the number of photoreceptor precursors in the specification of R8 photoreceptors - a bistable loop between senseless and rough locks in R8 fate

Gene Model and Products
Number of Transcripts
2
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\ro 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 P10181)

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 5.48

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0085090
1169
350
FBtr0085091
1241
350
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
FBpp0084460
39.4
350
9.72
FBpp0084461
39.4
350
9.72
Polypeptides with Identical Sequences

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

350 aa isoforms: ro-PA, ro-PB
Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Crossreferences
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\ro 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).

-0.33

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

Comment: maternally deposited

Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

In addition to the wild type staining in receptor cells R2, R3, R4, and R5, additional staining is observed in the position of the mystery cell in the rhohs.sev line.

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

JBrowse - Visual display of RNA-Seq signals

View Dmel\ro 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
Flygut - An atlas of the Drosophila adult midgut
Images
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 46 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 30 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of ro
Transgenic constructs containing regulatory region of ro
Aberrations (Deficiencies and Duplications) ( 23 )
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
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) (95)
3 of 14
Yes
No
1  
3 of 14
Yes
No
3 of 14
Yes
No
3 of 14
Yes
No
3 of 14
Yes
No
3 of 14
Yes
No
1  
3 of 14
Yes
No
1  
3 of 14
Yes
No
3 of 14
Yes
No
3 of 14
Yes
No
1  
3 of 14
Yes
No
3 of 14
Yes
No
3 of 14
Yes
No
2 of 14
No
No
2 of 14
No
No
1  
2 of 14
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No
2 of 14
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No
2 of 14
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No
1  
2 of 14
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No
1  
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No
2 of 14
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1  
2 of 14
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No
1  
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No
2 of 14
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No
2 of 14
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No
2 of 14
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No
2 of 14
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No
2  
2 of 14
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1  
2 of 14
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No
2 of 14
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No
2 of 14
No
No
2 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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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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1  
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  
1 of 14
No
No
1  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
2  
1 of 14
No
Yes
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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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
No
1 of 14
No
No
1  
1 of 14
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No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
2  
1 of 14
No
No
1  
1 of 14
No
No
Hsap\LOC112268164
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
No
1 of 14
No
No
1  
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
1  
1 of 14
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No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1  
1 of 14
No
No
1  
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  
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (69)
3 of 14
Yes
No
3 of 14
Yes
No
3 of 14
Yes
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
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
2 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
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
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No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
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No
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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
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
Mus musculus (laboratory mouse) (72)
3 of 14
Yes
No
3 of 14
Yes
No
3  
3 of 14
Yes
No
3 of 14
Yes
No
0  
3 of 14
Yes
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
3  
2 of 14
No
No
2 of 14
No
No
1  
2 of 14
No
No
2 of 14
No
No
0  
2 of 14
No
No
0  
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
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No
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No
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No
2 of 14
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No
2 of 14
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No
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No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
0  
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
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  
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
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1  
1 of 14
No
No
1  
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
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  
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (97)
3 of 13
Yes
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
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
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
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
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No
1 of 13
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1 of 13
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No
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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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1 of 13
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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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No
1 of 13
No
No
1 of 13
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No
1 of 13
No
No
1 of 13
No
No
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
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
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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
Danio rerio (Zebrafish) (89)
3 of 14
Yes
No
3 of 14
Yes
No
3 of 14
Yes
No
3 of 14
Yes
No
3 of 14
Yes
No
3 of 14
Yes
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
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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
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
1 of 14
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1 of 14
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No
1 of 14
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No
1  
1 of 14
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No
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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
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) (33)
3 of 14
Yes
No
3 of 14
Yes
Yes
3 of 14
Yes
No
2 of 14
No
No
0  
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
1 of 14
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1 of 14
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1 of 14
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No
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No
1 of 14
No
No
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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
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
1 of 14
No
No
1  
1 of 14
No
No
Anopheles gambiae (African malaria mosquito) (39)
5 of 12
Yes
Yes
2 of 12
No
No
1 of 12
No
No
1 of 12
No
No
Arabidopsis thaliana (thale-cress) (29)
4 of 13
Yes
No
3 of 13
No
No
3 of 13
No
No
3 of 13
No
No
3 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
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
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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)
1 of 13
Yes
No
1 of 13
Yes
No
Schizosaccharomyces pombe (Fission yeast) (1)
2 of 12
Yes
No
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:ro. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (78)
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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 ( 1 )
    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
    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
    Linkouts
    Class of Gene
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    3R
    Recombination map
    3-92
    Cytogenetic map
    Sequence location
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    97D4-97D5
    Limits computationally determined from genome sequence between P{lacW}His2AvL1602 and P{PZ}sda03884
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    97D2-97D3
    (determined by in situ hybridisation)
    97D3-97D5
    (determined by in situ hybridisation)
    97D5-97D7
    (determined by in situ hybridisation)
    Experimentally Determined Recombination Data
    Location

    3-91.1

    Left of (cM)
    Right of (cM)
    Notes

    Maps adjacent to l(3)97Db.

    Stocks and Reagents
    Stocks (82)
    Genomic Clones (16)
     

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

    cDNA Clones (1)
     

    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
           
          Developmental Studies Hybridoma Bank - Monoclonal antibodies for use in research
          Cell Line Information
          Publicly Available Cell Lines
           
            Other Stable Cell Lines
             
              Other Comments

              roDOM affects morphogenetic furrow progression by interfering with hh signalling and preventing implementation of furrow-specific cell fates.

              ro expression in and around the morphogenetic furrow of the developing eye is regulated by hh.

              Spred is positively regulated by ro and gl.

              ro is a retina-specific negative regulator required for proper resolution of ato expression and proneural migration. ro acts in conjunction with the more ubiquitously used N regulatory pathway.

              The R8 fate in the developing eye is likely to be decided by the balance of the transcription factors encoded by ato and ro. The ato and ro products act as positive and negative factors, respectively, of such R8-specific genes as boss.

              Alleles of S and of ro have been identified in a screen for abnormal numbers of R8 cells.

              A 5.8kb genomic fragment contains all the information required for normal ro expression and function. Important cis-regulatory sequences are located both in the 5' promoter region (between -940 and -340, coordinates from FBrf0047664) and a tissue-specific enhancer is located in the first intron. Amino acids located in the C-terminal region of the homeodomain play an important role in binding site recognition.

              Mutagenesis of the ro locus demonstrates the ro gene product is required for the correct patterning of the developing eye.

              ro and gl gene products are required for B and B-H2 gene expression in R1 and R6.

              ro function is required during the early steps of ommatidial assembly. No R2 or R5 cells are present in ro- ommatidia as all existing out photoreceptors require svp+ function for their development.

              Mutations in ro affect early ommatidia development.

              Expression of ro in the presumptive R7 cell transforms the cell into an R1-6 type photoreceptor. The transformation is cell autonomous and depends on the presence of the sev gene. In wild type, ro may function autonomously in the specification of R2/5 photoreceptor identity but by itself may not initiate neural development.

              Adult eyes are rough with irregular facet size and shape. Ommatidia irregular size and shape. The abnormal ro phenotype is due to a developmental defect: pattern formation defect.

              Analysis of somatic mosaics suggests that the or gene function is required only in photoreceptors R2 and R5.

              Relationship to Other Genes
              Source for database merge of
              Additional comments
              Nomenclature History
              Source for database identify of
              Nomenclature comments
              Etymology
              Synonyms and Secondary IDs (6)
              Datasets (0)
              Study focus (0)
              Experimental Role
              Project
              Project Type
              Title
              Study result (0)
              Result
              Result Type
              Title
              External Crossreferences and Linkouts ( 39 )
              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
              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
              Developmental Studies Hybridoma Bank - Monoclonal antibodies for use in research
              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
              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 (237)