FB2024_03 , released June 25, 2024
Allele: Dmel\tor1
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General Information
Symbol
Dmel\tor1
Species
D. melanogaster
Name
FlyBase ID
FBal0016909
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
torWK, torWK34
Key Links
Genomic Maps

Nature of the Allele
Progenitor genotype
Cytology
Description

Met at residue 522 (in the tyrosine kinase domain) replaced by Lys.

Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
Nucleotide change:

T7706865A

Reported nucleotide change:

T?A

Amino acid change:

M522K | tor-PA; M517K | tor-PD

Reported amino acid change:

M522K

Variant Molecular Consequences
Associated Sequence Data
DNA sequence
Protein sequence
 
Expression Data
Reporter Expression
Additional Information
Statement
Reference
 
Marker for
Reflects expression of
Reporter construct used in assay
Human Disease Associations
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 0 )
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 0 )
Disease
Interaction
References
Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
 
Disease-implicated variant(s)
 
Phenotypic Data
Phenotypic Class
Phenotype Manifest In
Detailed Description
Statement
Reference

Embryos from tor1/tor2 transheterozygous mothers do not display any obvious defect in primordial germ cell formation, as compared to controls.

Neural activity in tore00150/tor1 mutant class IV da neurons show a reduction in response to blue light (470 nm) illumination compared with controls. This is accompanied by a loss of larval light avoidance.

Suppresses "splice" phenotype of torNRE, presumably because product is appropriately positioned to block diffusion of the tor ligand, even though it cannot transduce the terminal signal.

In tor1 trk1 embryos little or no tll expression is detected in the posterior of syncytial or cellular blastoderm embryos, at the anterior the early tll cap does not appear and an abnormal anterior tll stripe appears by the late syncytial blastoderm.

Does not interact with RpII140wimp maternal effect.

Embryos derived from tor1, trk1 females lack A8 and filzkorper. Filzkorper are formed and segmentation is repressed in heat shocked embryos carrying tllhs.PS and derived from tor1, trk1 females.

Embryos carrying the hbΔ transcripts do not express kni and form no abdominal segments.

A hole is seen in the blastoderm layer below the pole cells in embryos. The ventral furrow is extended posteriorly. Segments A8 to the telson are deleted. Segments A5 to A7 are expanded. Some twisting of the germband is seen. Labral and acron-derived structures are deleted. There is cell death in the head and tail region. Cephalic furrow and anterior midgut invagination are shifted anteriorly.

The anteriormost and posteriormost structures are lacking and the anterior pattern is shifted anteriorly. tor embryos display normal levels of bcd protein.

Embryos derived from homozygous females lack the most anterior and posterior structures; the head skeleton is smaller than normal and the Filzkorper, anal plate and spiracles are missing.

Homozygous females produce embryos which have deletions of the most anterior head structures (labrum and chitinous mouth plates), and the most posterior abdominal structures (posterior midgut, telson and abdominal segment A8).

recessive

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
NOT Suppressor of
Statement
Reference

tor1 is a non-suppressor of phenotype of arm3

Additional Comments
Genetic Interactions
Statement
Reference
Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Rescued by
Comments
Images (0)
Mutant
Wild-type
Stocks (4)
Notes on Origin
Discoverer

Wieschaus, Nusslein-Volhard.

Comments
Comments

Germline mosaic analysis shows that tor is required in the germline.

Transplantation of wild-type anterior cytoplasm into the anterior end of embryos derived from homozygous tor1 females can rescue the mutant anterior structures. Transplantation of wild-type posterior cytoplasm into the posterior end of embryos derived from homozygous tor1 females can rescue the mutant posterior structures. Cytoplasm transplanted from tor4 mutant donors has no rescuing effect.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (7)
References (32)