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General Information
Symbol
Dmel\Alk
Species
D. melanogaster
Name
Anaplastic lymphoma kinase
Annotation Symbol
CG8250
Feature Type
FlyBase ID
FBgn0040505
Gene Model Status
Stock Availability
Enzyme Name (EC)
Receptor protein-tyrosine kinase (2.7.10.1)
Gene Snapshot
Anaplastic lymphoma kinase (Alk) encodes a protein that employs Ras/ERK and PI3K signalling pathways to function in multiple contexts including embryonic visceral muscle development, growth and organ size regulation, retinal axon targeting, modulation of neuromuscular transmission as well as sleep regulation and olfactory learning. Its ligand is the secreted protein encoded by jeb. [Date last reviewed: 2019-03-07]
Also Known As

DAlk

Key Links
Genomic Location
Cytogenetic map
Sequence location
2R:16,625,293..16,640,011 [-]
Recombination map

2-80

RefSeq locus
NT_033778 REGION:16625293..16640011
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)
-
Catalytic Activity (EC)
Experimental Evidence
ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate (2.7.10.1)
Predictions / Assertions
ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate (2.7.10.1)
Summaries
Gene Group (FlyBase)
RECEPTOR TYROSINE KINASES -
Receptor tyrosine kinases (RTK) are single-pass transmembrane receptors expressed on the plasma membrane. Upon the binding of an extracellular signalling molecule (e.g. growth factors, hormones), RTKs dimerize leading to the activation of the intracellular tyrosine kinase domain and intermolecular phosphorylation. The phosphotyrosines function as specific sites for the assembly, phosphorylation and activation of downstream signaling molecules. (Adapted from PMID:20602996).
Summary (Interactive Fly)
Gene Model and Products
Number of Transcripts
2
Number of Unique Polypeptides
1

Please see the GBrowse view of Dmel\Alk or the JBrowse view of Dmel\Alk 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 5.45

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

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

Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0087118
8655
1701
FBtr0331926
9402
1701
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
FBpp0086264
185.6
1701
6.55
FBpp0304259
185.6
1701
6.55
Polypeptides with Identical Sequences

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

1701 aa isoforms: Alk-PA, Alk-PB
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\Alk using the Feature Mapper tool.

External Data
Crossreferences
Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
Linkouts
Gene Ontology (24 terms)
Molecular Function (3 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 electronic annotation with InterPro:IPR000719, InterPro:IPR002011, InterPro:IPR017441
(assigned by InterPro )
inferred from biological aspect of ancestor with PANTHER:PTN002356460
(assigned by GO_Central )
Biological Process (16 terms)
Terms Based on Experimental Evidence (13 terms)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (4 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN002356460
(assigned by GO_Central )
inferred from biological aspect of ancestor with PANTHER:PTN002356460
(assigned by GO_Central )
inferred from biological aspect of ancestor with PANTHER:PTN000699407
(assigned by GO_Central )
inferred from biological aspect of ancestor with PANTHER:PTN002356460
(assigned by GO_Central )
Cellular Component (5 terms)
Terms Based on Experimental Evidence (3 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:PTN002356460
(assigned by GO_Central )
inferred from biological aspect of ancestor with PANTHER:PTN002356460
(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
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
No Assay Recorded
Stage
Tissue/Position (including subcellular localization)
Reference
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
mass spectroscopy
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

Alk protein is expressed throughout the third instar larval and adult brain. In the adult, labelling is stronger in the mushroom body calyx (dendrites of Kenyon cells), protocerebral bridge, antennal lobe, subesophageal ganglion and optic lobe. Alk protein is not detected in the mushroom body lobes (axons of Kenyon cells). The expression of Alk protein is similar but more widespread than labelling with Scer\GAL4Alk.38.

Alk is concentrated postsynaptically at larval glutamergic neuromusclular junction synapses. It is strongly expressed in type Ib boutons and is more weakly localized at type Is boutons. Alk superimposed extensively with the anti-HRP labeled presynaptic membrane, but had a much broader domain and was localized to the surrounding postsynaptic muscle. In mature embryos, Alk is present in developing CNS synapses.

Expression of Alk protein is observed in both muscle founder cells and in fusion-competent myoblasts in the visceral mesoderm, and is localized to the cell membrane.

Marker for
Subcellular Localization
CV Term
Evidence
References
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

GBrowse - Visual display of RNA-Seq signals

View Dmel\Alk 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
Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
Flygut - An atlas of the Drosophila adult midgut
Images
Alleles, Insertions, and Transgenic Constructs
Classical and Insertion Alleles ( 25 )
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 Alk
Transgenic constructs containing regulatory region of Alk
Deletions and Duplications ( 4 )
Phenotypes
For more details about a specific phenotype click on the relevant allele symbol.
Lethality
Allele
Other Phenotypes
Allele
Phenotype manifest in
Allele
axon & photoreceptor cell R8 | somatic clone
axon & photoreceptor cell R8 | somatic clone, with Scer\GAL4Act5C.PI
muscle founder cell & circular visceral muscle primordium
muscle founder cell & visceral mesoderm, with Scer\GAL4twi.PG
muscle founder cell & visceral muscle primordium
muscle founder cell & visceral muscle primordium, with Scer\GAL4twi.2PE
muscle founder cell & visceral muscle primordium | ectopic
Orthologs
Human Orthologs (via DIOPT v7.1)
Homo sapiens (Human) (8)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
12 of 15
Yes
Yes
 
11 of 15
No
Yes
2 of 15
No
No
1 of 15
No
No
1 of 15
No
Yes
1 of 15
No
Yes
1 of 15
No
Yes
1 of 15
No
Yes
Model Organism Orthologs (via DIOPT v7.1)
Mus musculus (laboratory mouse) (7)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
12 of 15
Yes
Yes
9 of 15
No
Yes
2 of 15
No
No
1 of 15
No
No
1 of 15
No
Yes
1 of 15
No
Yes
1 of 15
No
Yes
Rattus norvegicus (Norway rat) (6)
8 of 13
Yes
Yes
4 of 13
No
Yes
2 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
Yes
Xenopus tropicalis (Western clawed frog) (5)
3 of 12
Yes
Yes
2 of 12
No
Yes
1 of 12
No
Yes
1 of 12
No
Yes
1 of 12
No
No
Danio rerio (Zebrafish) (7)
10 of 15
Yes
Yes
3 of 15
No
Yes
2 of 15
No
No
1 of 15
No
Yes
1 of 15
No
Yes
1 of 15
No
Yes
1 of 15
No
Yes
Caenorhabditis elegans (Nematode, roundworm) (5)
11 of 15
Yes
Yes
2 of 15
No
No
1 of 15
No
No
1 of 15
No
Yes
1 of 15
No
Yes
Arabidopsis thaliana (thale-cress) (6)
1 of 9
Yes
No
1 of 9
Yes
Yes
1 of 9
Yes
Yes
1 of 9
Yes
Yes
1 of 9
Yes
Yes
1 of 9
Yes
Yes
Saccharomyces cerevisiae (Brewer's yeast) (1)
1 of 15
Yes
No
Schizosaccharomyces pombe (Fission yeast) (0)
No records found.
Orthologs in Drosophila Species (via OrthoDB v9.1) ( EOG091900FD )
Organism
Common Name
Gene
AAA Syntenic Ortholog
Multiple Dmel Genes in this Orthologous Group
Drosophila suzukii
Spotted wing Drosophila
Drosophila simulans
Drosophila sechellia
Drosophila erecta
Drosophila yakuba
Drosophila ananassae
Drosophila pseudoobscura pseudoobscura
Drosophila persimilis
Drosophila willistoni
Drosophila virilis
Drosophila mojavensis
Drosophila grimshawi
Orthologs in non-Drosophila Dipterans (via OrthoDB v9.1) ( EOG0915009H )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Musca domestica
House fly
Glossina morsitans
Tsetse fly
Lucilia cuprina
Australian sheep blowfly
Mayetiola destructor
Hessian fly
Aedes aegypti
Yellow fever mosquito
Anopheles darlingi
American malaria mosquito
Anopheles gambiae
Malaria mosquito
Culex quinquefasciatus
Southern house mosquito
Culex quinquefasciatus
Southern house mosquito
Orthologs in non-Dipteran Insects (via OrthoDB v9.1) ( EOG090W00BR )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Bombyx mori
Silkmoth
Danaus plexippus
Monarch butterfly
Heliconius melpomene
Postman butterfly
Apis florea
Little honeybee
Apis mellifera
Western honey bee
Bombus impatiens
Common eastern bumble bee
Bombus terrestris
Buff-tailed bumblebee
Linepithema humile
Argentine ant
Megachile rotundata
Alfalfa leafcutting bee
Nasonia vitripennis
Parasitic wasp
Dendroctonus ponderosae
Mountain pine beetle
Dendroctonus ponderosae
Mountain pine beetle
Tribolium castaneum
Red flour beetle
Pediculus humanus
Human body louse
Rhodnius prolixus
Kissing bug
Cimex lectularius
Bed bug
Acyrthosiphon pisum
Pea aphid
Acyrthosiphon pisum
Pea aphid
Zootermopsis nevadensis
Nevada dampwood termite
Orthologs in non-Insect Arthropods (via OrthoDB v9.1) ( EOG090X00B8 )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Strigamia maritima
European centipede
Ixodes scapularis
Black-legged tick
Ixodes scapularis
Black-legged tick
Stegodyphus mimosarum
African social velvet spider
Stegodyphus mimosarum
African social velvet spider
Stegodyphus mimosarum
African social velvet spider
Tetranychus urticae
Two-spotted spider mite
Daphnia pulex
Water flea
Daphnia pulex
Water flea
Orthologs in non-Arthropod Metazoa (via OrthoDB v9.1) ( EOG091G0150 )
Organism
Common Name
Gene
Multiple Dmel Genes in this Orthologous Group
Strongylocentrotus purpuratus
Purple sea urchin
Strongylocentrotus purpuratus
Purple sea urchin
Strongylocentrotus purpuratus
Purple sea urchin
Strongylocentrotus purpuratus
Purple sea urchin
Strongylocentrotus purpuratus
Purple sea urchin
Strongylocentrotus purpuratus
Purple sea urchin
Paralogs
Paralogs (via DIOPT v7.1)
Drosophila melanogaster (Fruit fly) (19)
4 of 10
2 of 10
2 of 10
2 of 10
2 of 10
2 of 10
2 of 10
2 of 10
2 of 10
2 of 10
2 of 10
2 of 10
2 of 10
2 of 10
2 of 10
2 of 10
1 of 10
1 of 10
1 of 10
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 ( 6 )
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
Show neighbor-neighbor interactions:
Select Layout:
Legend:
Protein
RNA
Selected Interactor(s)
Interactions Browser

Please see the Physical Interaction reports below for full details
protein-protein
Physical Interaction
Assay
References
Summary of Genetic Interactions
esyN Network Diagram
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
DroID - A comprehensive database of gene and protein interactions.
InterologFinder - Protein-protein interactions (PPI) from both known and predicted PPI data sets.
MIST (genetic) - An integrated Molecular Interaction Database
MIST (protein-protein) - An integrated Molecular Interaction Database
Pathways
Signaling Pathways (FlyBase)
Metabolic Pathways
External Data
Linkouts
Genomic Location and Detailed Mapping Data
Chromosome (arm)
2R
Recombination map

2-80

Cytogenetic map
Sequence location
2R:16,625,293..16,640,011 [-]
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
53C12-53C13
Limits computationally determined from genome sequence between P{PZ}Sema-2a03021&P{PZ}Cdk405428 and P{EP}BEST:SD02913EP2148&P{lacW}Dekk09907
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
53-53
(determined by in situ hybridisation)
Experimentally Determined Recombination Data
Location
Left of (cM)
Right of (cM)
Notes
Stocks and Reagents
Stocks (6)
Genomic Clones (20)
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 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
    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
     

    polyclonal antibody

    Commercially Available Antibodies
     
    Other Information
    Relationship to Other Genes
    Source for database identify of
    Source for database merge of

    Source for merge of: Alk CG8250

    Additional comments
    Other Comments

    Alk is required in target neurons in the lamina for the correct formation of adult R cell projections.

    dsRNA made from templates generated with primers directed against this gene tested in RNAi screen for effects on Kc167 and S2R+ cell morphology.

    Origin and Etymology
    Discoverer
    Etymology

    Named 'Alk' / 'Anaplastic lymphoma kinase' because of shared homology with mammalian ALK.

    Identification
    External Crossreferences and Linkouts ( 47 )
    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/TrEMBL - Automatically annotated and unreviewed records of protein sequence and functional information
    Other crossreferences
    Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
    Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
    Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
    Flygut - An atlas of the Drosophila adult midgut
    GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
    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
    FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
    FlyMine - An integrated database for Drosophila genomics
    Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
    InterologFinder - Protein-protein interactions (PPI) from both known and predicted PPI data sets.
    MIST (genetic) - An integrated Molecular Interaction Database
    MIST (protein-protein) - An integrated Molecular Interaction Database
    Synonyms and Secondary IDs (12)
    Reported As
    Symbol Synonym
    Secondary FlyBase IDs
    • FBgn0034146
    Datasets (0)
    Study focus (0)
    Experimental Role
    Project
    Project Type
    Title
    References (117)