FB2024_03 , released June 25, 2024
Allele: Dmel\hook1
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General Information
Symbol
Dmel\hook1
Species
D. melanogaster
Name
FlyBase ID
FBal0005492
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Genomic Maps

Allele class
Mutagen
Nature of the Allele
Allele class
Progenitor genotype
Cytology
Description

Nucleotide substitution: G1964T, in a splice donor site. This results in a C-terminally truncated protein.

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

G19031820T

Comment:

Altered splice donor site; results in a 489aa polypeptide.

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

Mutants have a glial overmigration phenotype in the eye disc.

hk1/hk11 males have a shortened adult life span compared to controls, with a mean life span of 18.76 days at 25o.

hk1 males have a shortened adult life span compared to controls, with a mean life span of 19.861 days at 25o.

Hemizygotes have a hooked-bristle phenotype. hk1/hk11 flies do not show any signs of eye degeneration.

Flies exhibit pleiotrophic phenotypes including abnormal bristle morphology (bristles often have a sharp bend and the tips are blunt instead of tapered) and light-dependent eye degeneration (degeneration is reduced but not completely suppressed in the dark).

Bristles nearly all hooked at tip or blunted, some bent at right angles. Scutellars and verticals especially affected. Acrostichal hairs fewer and outer rows separated. Eyes slightly roughened. Wings usually divergent and may be smaller. Body sometimes small and chunky. Less extreme expression at 19oC, especially the wing character, but classification reliable. RK2.

External Data
Interactions
Show genetic interaction network for Enhancers & Suppressors
Phenotypic Class
Enhancer of
Statement
Reference

hk[+]/hook1 is an enhancer of visible phenotype of Scer\GAL4GMR.PF, bchsEP2299

Phenotype Manifest In
NOT suppressed by
Statement
Reference

hook1 has phenotype, non-suppressible by su(Hw)2

Enhancer of
Statement
Reference

hk[+]/hook1 is an enhancer of embryonic/larval cuticle phenotype of baz4

hk[+]/hook1 is an enhancer of embryonic/larval cuticle phenotype of bazG0484

hk[+]/hook1 is an enhancer of eye phenotype of Scer\GAL4GMR.PF, bchsEP2299

Additional Comments
Genetic Interactions
Statement
Reference

The cuticle phenotype of dead embryos derived from baz4/+ embryos derived from a cross of baz4/+ females to wild-type males is enhanced if the females also carry one copy of hk1.

The cuticle phenotype of dead embryos derived from bazG0484/+ embryos derived from a cross of bazG0484/+ females to wild-type males is enhanced if the females also carry one copy of hk1.

Xenogenetic Interactions
Statement
Reference
Complementation and Rescue Data
Images (1)
Stocks (68)
Notes on Origin
Discoverer

Mohr, 4th Jan. 1924.

Comments
Comments

Homozygotes and hemizygotes show degeneration of the eye. This is probably due to a second site mutation on the hk1 chromosome, as hk1/hk11, hk11/Df(2L)TW130 flies and flies overexpressing hk1-551.GMR.T:Hsap\MYC do not show any sign of eye degeneration.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (3)
Reported As
Symbol Synonym
Name Synonyms
Secondary FlyBase IDs
    References (10)