FB2026_02 , released June 18, 2026
Allele: Dmel\grpZ5170
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General Information
Symbol
Dmel\grpZ5170
Species
D. melanogaster
Name
FlyBase ID
FBal0197285
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Nature of the Allele
Progenitor genotype
Cytology
Description

Amino acid replacement: P189L.

Nucleotide substitution: C?T.

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

C16697560T

Reported nucleotide change:

C?T

Amino acid change:

P189L | grp-PA; P189L | grp-PB; P189L | grp-PC; P75L | grp-PD; P75L | grp-PF

Reported amino acid change:

P189L

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

Homozygous eye discs show severe defects in hydroxyurea-induced G2 arrest, with the number of mitotic cells remaining high after treatment, in contrast to wild type.

The mitotic checkpoint normally induced by 4000rad of irradiation is not detectable in grp209/grpZ5170 mutants. No checkpoint is detectable in these animals after irradiation with 500rad.

grp209/grpZ5170 males in which excision of insertions of P{hswa} is induced during development are completely viable.

32.8% of embryos derived from grpZ5170/Df(2L)H20 females and 21.4% of embryos derived from homozygous grpZ5170 females arrest in precortical cycles with acentrosomal, barrel-shaped spindles.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Enhanced by
Statement
Reference

grpZ5170 has chemical sensitive phenotype, enhanceable by lok30

Other
Statement
Reference
Phenotype Manifest In
Suppressor of
Statement
Reference
Other
Statement
Reference
Additional Comments
Genetic Interactions
Statement
Reference

lok30 increases the severity of the defect in hydroxyurea-induced G2 arrest which is seen in grpZ5170 eye discs.

Survival to adulthood of grp209/grpZ5170 lok30 males in which excision of an insertion of P{hswa} is induced during development is drastically reduced.

grp209/grpZ5170 ; DNApol-α180Emus304/+ males have a rough eye phenotype, while grp209/grpZ5170 ; DNApol-α180Emus304/+ females have wild-type eyes. The wing discs of these mutant animals show an increase in apoptosis compared to wild type.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Fails to complement
Comments
Images (0)
Mutant
Wild-type
Stocks (0)
Notes on Origin
Discoverer
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (3)
References (12)