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General Information
Symbol
Dmel\Or33b
Species
D. melanogaster
Name
Odorant receptor 33b
Annotation Symbol
CG16961
Feature Type
FlyBase ID
FBgn0026391
Gene Model Status
Stock Availability
Gene Snapshot
Odorant receptor 33b (Or33b) encodes a multi-transmembrane chemoreceptor that mediates response to volatile chemicals. [Date last reviewed: 2019-03-14]
Also Known As
AN1, 33b
Key Links
Genomic Location
Cytogenetic map
Sequence location
2L:11,936,181..11,937,501 [+]
Recombination map
2-45
Sequence
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
GO Summary Ribbons
Gene Group (FlyBase)
Protein Family (UniProt)
Belongs to the insect chemoreceptor superfamily. Heteromeric odorant receptor channel (TC 1.A.69) family. Or2a subfamily. (P81915)
Protein Signatures (InterPro)
Summaries
Gene Group (FlyBase)
ODORANT RECEPTORS -
Insect odorant receptors (ORs) are a family of chemoreceptors activated by volatile chemicals. ORs form heteromeric complexes, believed to function as non-selective cation channels, comprising an OR and the co-receptor Orco. ORs are expressed in the dendrites of subsets of olfactory neurons in the antenna and maxillary palp. (Adapted from FBrf0168007 and FBrf0220463).
Protein Function (UniProtKB)
Odorant receptor which mediates acceptance or avoidance behavior, depending on its substrates. The odorant receptor repertoire encodes a large collection of odor stimuli that vary widely in identity, intensity, and duration. May form a complex with Orco to form odorant-sensing units, providing sensitive and prolonged odorant signaling and calcium permeability. Involved in the behavioral responses to pentyl acetate and pyrazines.
(UniProt, P81915)
Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the GBrowse view of Dmel\Or33b or the JBrowse view of Dmel\Or33b 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
Comments on Gene Model
Gene model reviewed during 5.51
Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0080279
1140
379
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
RefSeq ID
GenBank
FBpp0079863
43.6
379
8.03
Polypeptides with Identical Sequences

There is only one protein coding transcript and one polypeptide associated with this gene

Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Subunit Structure (UniProtKB)
Interacts with Orco. Complexes exist early in the endomembrane system in olfactory sensory neurons (OSNs), coupling these complexes to the conserved ciliary trafficking pathway (By similarity).
(UniProt, P81915)
Crossreferences
InterPro - A database of protein families, domains and functional sites
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\Or33b using the Feature Mapper tool.

External Data
Crossreferences
Linkouts
Gene Ontology (8 terms)
Molecular Function (3 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from high throughput direct assay
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
inferred from sequence or structural similarity with FLYBASE:Or43b; FB:FBgn0026393
non-traceable author statement
inferred by curator from GO:0004888,GO:0007608
inferred from biological aspect of ancestor with PANTHER:PTN000474402
(assigned by GO_Central )
non-traceable author statement
(assigned by UniProt )
Biological Process (2 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000474402
(assigned by GO_Central )
non-traceable author statement
(assigned by UniProt )
Cellular Component (3 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from high throughput direct assay
Terms Based on Predictions or Assertions (3 terms)
CV Term
Evidence
References
inferred from sequence or structural similarity with FLYBASE:Or22a; FB:FBgn0026398
non-traceable author statement
(assigned by UniProt )
inferred from sequence model
inferred from biological aspect of ancestor with PANTHER:PTN000474402
(assigned by GO_Central )
inferred from biological aspect of ancestor with PANTHER:PTN000474402
(assigned by GO_Central )
Expression Data
Expression Summary Ribbons
Colored tiles in ribbon indicate that expression data has been curated by FlyBase for that anatomical location. Colorless tiles indicate that there is no curated data for that location.
For complete stage-specific expression data, view the modENCODE Development RNA-Seq section under High-Throughput Expression below.
Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
Or33b is expressed in approximately 15 sensory neurons in the third antennal segment.
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Evidence
References
inferred from high throughput direct assay
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

GBrowse - Visual display of RNA-Seq signals

View Dmel\Or33b in GBrowse 2
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
FLIGHT - Cell culture data for RNAi and other high-throughput technologies
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
Flygut - An atlas of the Drosophila adult midgut
Images
Alleles, Insertions, and Transgenic Constructs
Classical and Insertion Alleles ( 0 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 4 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Or33b
Transgenic constructs containing regulatory region of Or33b
Deletions and Duplications ( 1 )
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 v7.1)
Homo sapiens (Human) (0)
No records found.
Model Organism Orthologs (via DIOPT v7.1)
Mus musculus (laboratory mouse) (0)
No records found.
Rattus norvegicus (Norway rat) (0)
No records found.
Xenopus tropicalis (Western clawed frog) (0)
No records found.
Danio rerio (Zebrafish) (0)
No records found.
Caenorhabditis elegans (Nematode, roundworm) (0)
No records found.
Arabidopsis thaliana (thale-cress) (0)
No records found.
Saccharomyces cerevisiae (Brewer's yeast) (0)
No records found.
Schizosaccharomyces pombe (Fission yeast) (0)
No records found.
Orthologs in Drosophila Species (via OrthoDB v9.1) ( EOG091909EN )
Organism
Common Name
Gene
AAA Syntenic Ortholog
Multiple Dmel Genes in this Orthologous Group
Drosophila melanogaster
fruit fly
Drosophila suzukii
Spotted wing Drosophila
Drosophila simulans
Drosophila sechellia
Drosophila erecta
Drosophila yakuba
Drosophila ananassae
Drosophila ananassae
Drosophila ananassae
Drosophila pseudoobscura pseudoobscura
Drosophila persimilis
Orthologs in non-Drosophila Dipterans (via OrthoDB v9.1) ( EOG091505DX )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Mayetiola destructor
Hessian fly
Orthologs in non-Dipteran Insects (via OrthoDB v9.1) ( EOG090W05IF )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Rhodnius prolixus
Kissing bug
Orthologs in non-Insect Arthropods (via OrthoDB v9.1) ( EOG090X05IB )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Strigamia maritima
European centipede
Orthologs in non-Arthropod Metazoa (via OrthoDB v9.1) ( None identified )
No non-Arthropod Metazoa orthologies identified
Paralogs
Paralogs (via DIOPT v7.1)
Drosophila melanogaster (Fruit fly) (59)
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Human Disease Associations
FlyBase Human Disease Model Reports
    Disease Model Summary Ribbon
    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
    Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
     
    Disease Associations of Human Orthologs (via DIOPT v7.1 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
    Interactions Browser
    Summary of Genetic Interactions
    esyN Network Diagram
    Starting gene(s)
    Interaction type
    Interacting gene(s)
    Reference
    Starting gene(s)
    Interaction type
    Interacting gene(s)
    Reference
    External Data
    Subunit Structure (UniProtKB)
    Interacts with Orco. Complexes exist early in the endomembrane system in olfactory sensory neurons (OSNs), coupling these complexes to the conserved ciliary trafficking pathway (By similarity).
    (UniProt, P81915 )
    Linkouts
    DroID - A comprehensive database of gene and protein interactions.
    Pathways
    Gene Group - Pathway Membership (FlyBase)
    External Data
    Linkouts
    Genomic Location and Detailed Mapping Data
    Chromosome (arm)
    2L
    Recombination map
    2-45
    Cytogenetic map
    Sequence location
    2L:11,936,181..11,937,501 [+]
    FlyBase Computed Cytological Location
    Cytogenetic map
    Evidence for location
    33B2-33B2
    Limits computationally determined from genome sequence between P{PZ}crol04418&P{EP}crolEP1183 and P{EP}MESK1EP980
    Experimentally Determined Cytological Location
    Cytogenetic map
    Notes
    References
    Experimentally Determined Recombination Data
    Location
    Left of (cM)
    Right of (cM)
    Notes
    Stocks and Reagents
    Stocks (6)
    Genomic Clones (27)
    cDNA Clones (0)
     

    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 GBrowse for alignment of the cDNAs and ESTs to the gene model.

    cDNA clones, fully sequences
    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
              GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
              Antibody Information
              Laboratory Generated Antibodies
               
              Commercially Available Antibodies
               
              Other Information
              Relationship to Other Genes
              Source for database identify of
              Source for identity of: Or33b Or33B.2
              Source for database merge of
              Additional comments
              Other Comments
              Origin and Etymology
              Discoverer
              Etymology
              Identification
              External Crossreferences and Linkouts ( 18 )
              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/Swiss-Prot - Manually annotated and reviewed records of protein sequence and functional information
              Other crossreferences
              Flygut - An atlas of the Drosophila adult midgut
              GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
              InterPro - A database of protein families, domains and functional sites
              KEGG Genes - Molecular building blocks of life in the genomic space.
              modMine - A data warehouse for the modENCODE project
              Linkouts
              DroID - A comprehensive database of gene and protein interactions.
              DRSC - Results frm RNAi screens
              FLIGHT - Cell culture data for RNAi and other high-throughput technologies
              FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
              FlyMine - An integrated database for Drosophila genomics
              Synonyms and Secondary IDs (12)
              Datasets (0)
              Study focus (0)
              Experimental Role
              Project
              Project Type
              Title
              References (68)