FB2024_03 , released June 25, 2024
Allele: Dmel\biomb-3198
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General Information
Symbol
Dmel\biomb-3198
Species
D. melanogaster
Name
FlyBase ID
FBal0001123
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Also Known As
l(1)omb3198, omb3198
Key Links
Genomic Maps

Nature of the Allele
Progenitor genotype
Cytology
Description

Point mutation causing premature termination of the protein.

Amino acid replacement: W395term.

Nucleotide substitution: G?A.

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

G4450882A

Reported nucleotide change:

G?A

Amino acid change:

W395term | bi-PA; W395term | bi-PB; W395term | bi-PC; W395term | bi-PD; W395term | bi-PE; W395term | bi-PF; W395term | bi-PG

Reported amino acid change:

W395term

Comment:

G to A nucleotide change at the second or third position of the wild type Trp codon leads to a nonsense mutation (exact site of mutation unspecified). The mutation was annotated at the second base of the codon.

Variant Molecular Consequences
Associated Sequence Data
 
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

biomb-3198 clones generated along the A/P boundary of the wing imaginal disc, using the FLP/FRT technique, show a defective segregation phenotype. biomb-3198 clones of A, but not P, origin are partly misplaced into the territory of the adjacent compartment, causing a displacement of the A/P compartment boundary toward P.

Mutants die as pharate adults. A deletion of the central wing disc is seen, also huge overgrowths are seen that do not evaginate, but remain internal.

Clones of biomb-3198 that are induced in the dorsal half of the eye do not remove the dorsal rim ommatidia.

When somatic clones are made in the segmental anterior 4 (a4) region of the anterior segmental compartment in the adult abdomen an associated patch of reversed polarity is seen, which can extend in front of and behind the clone. The clone itself also lacks the dark a4 pigment. When the clone is near the back of the anterior compartment hairs (and thus polarity) are reversed. This reversed polarity effect only extends as far as the anterior posterior boundary. When somatic clones are made in the segmental posterior 3 (p3) region of the posterior segmental compartment in the adult abdomen, about one third of the clones lost some, but not all of the hairs within the clone.

Hemizygotes usually die at the late larval or early pupal stage, with a few animals surviving to the late pharate adult stage. Homozygous clones in the abdomen have no effect on polarity or cell fates when located in the anterior tergite. Clones in the posterior tergite and posterior hairy zone cause reversal of trichome polarity and disappearance of the pigment band. Clones in the posterior tergite are small, even if induced at early embryonic stages.

Neuroanatomical omb phenotype.

Displays lac and rb phenotypes.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Phenotype Manifest In
Additional Comments
Genetic Interactions
Statement
Reference

Clones generated along the A/P boundary of the wing imaginal disc, that overexpress ciScer\UAS.cDa, driven by Scer\GAL4hh-Gal4, in a biomb-3198 background show no mis-segregation phenotype.

When biomb-3198 ptc16 double homozygous clones are made in the anterior compartment of the abdominal segment. These clones makes segmental region anterior 6 (a6) cuticle, like ptc16 clones, but reverse polarity in the front half of the clone as do biomb-3198 clones.

When tkvQ253D.Scer\UAS.cNc is driven by Scer\GAL4Act5C.PP in a biomb-3198 background, no suppression of the proliferation phenotype is seen.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Comments
Images (0)
Mutant
Wild-type
Stocks (1)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 6 )
Crossreferences
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.
Synonyms and Secondary IDs (7)
References (16)