FB2024_03 , released June 25, 2024
Allele: Dmel\Pu2
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General Information
Symbol
Dmel\Pu2
Species
D. melanogaster
Name
FlyBase ID
FBal0014004
Feature type
allele
Associated gene
Associated Insertion(s)
Carried in Construct
Key Links
Allele class
Mutagen
Nature of the Allele
Allele class
Progenitor genotype
Cytology

Polytene chromosomes normal.

Description
Mutations Mapped to the Genome
Curation Data
Type
Location
Additional Notes
References
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

Shows reduction in profile of DOPA accumulation after adult eclosion.

GTP cyclohydrolase activity is reduced to less than 50% of wild-type in the prepupa, adult body and adult head of heterozygotes.

Eye colour: purplish, resembles pr1. Class II allele.

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

Non-complementing allele.

Images (0)
Mutant
Wild-type
Stocks (11)
Notes on Origin
Discoverer

Grell, Feb. 1957.

Comments
Comments

GTP CH activity reduced to less than 50% normal levels, in prepupae, adult body and adult head, i.e. lower than observed in deficiency heterozygotes. Activity 80% normal in genotypes that carry, in addition to Pu2, two doses of Pu+.

Heterozygotes have 18% enzyme activity compared to wild-type, this reduction in activity being evident in all tissues and developmental times in which the enzyme is normally expressed. Levels of all pteridine compounds are diminished. Heterozygotes also carrying an inversion of the 57C-57D region of 2R which contains Pu have at least 80% enzyme activity compared to wild-type.

The viability and eye phenotype in trans with other Pu alleles has been determined.

Class II Pu allele.

19 - 33% activity of the wild type enzyme. Diminished levels of 5,6,7,8-tetrahydroperin and 5,6,7,8-tetrahydrobioperin.

External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (1)
Reported As
Symbol Synonym
Pu2
Name Synonyms
Secondary FlyBase IDs
    References (10)